{"id":52568,"date":"2018-12-11T09:44:42","date_gmt":"2018-12-11T08:44:42","guid":{"rendered":"https:\/\/wpml.rechner-sensors.com\/inductive-sensor"},"modified":"2018-12-11T09:44:42","modified_gmt":"2018-12-11T08:44:42","slug":"inductive-sensor","status":"publish","type":"page","link":"https:\/\/www.rechner-sensors.com\/en\/documentations\/knowledge\/inductive-sensor","title":{"rendered":"Inductive sensor"},"content":{"rendered":"
[vc_row el_class=”no_padding_row”][vc_column][vc_single_image image=”43203″ img_size=”full”][\/vc_column][\/vc_row][vc_row el_class=”contact_row”][vc_column width=”2\/3″][vc_column_text]\n

Inductive sensor: contactless detection of metal objects approaching each other<\/h1>\n[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_btn title=” To our inductive sensors” link=”url:https%3A%2F%2Fwww.rechner-sensors.com%2Fen%2Fproduct-category%2Finductive-sensors|||”][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column][vc_column_text]An inductive sensor is used to determine the distance to a metal object. If the distance drops below a certain value (the so-called switch distance S), then the sensor will trigger an action. That is why it is indispensable as a tool in automation processes \u2013 e.g. as a guide for the grippers used in industrial machines. It can be used in a considerably larger range of application areas, however. For example, an inductive sensor can also monitor liquid levels with the help of metal floaters. This versatility makes it a valuable tool in all industrial areas as well as in a multitude of machines.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”content_anker”][vc_column][vc_column_text]\n

Table of contents<\/strong><\/p>\n

How does an inductive sensor work?<\/a><\/p>\n

What is the difference between flush and non-flush sensors?<\/a><\/p>\n

What kind of materials\/conductive materials can an inductive sensor detect?<\/a><\/p>\n

What is the difference between nominal switch distance (Sn) and real switch distance (Sr)?<\/a><\/p>\n

Working with inductive sensors: the advantages and disadvantages at a glance<\/a><\/p>\n

Buying an inductive sensor<\/a>[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”How_does_an_inductive_sensor_work” el_class=”no_padding_row”][vc_column][vc_column_text]\n

How does an inductive sensor work?<\/h2>\n

The following mnemonic helps to understand the functionality of an inductive sensor: The word “induction” comes from the Latin verb “inducere”, which means something like “guiding inside”. It registers a contact to an inserted object without touching it. The sensor has an active surface \u2013 an oscillator \u2013 on its front. This emits an electromagnetic field in a semicircle. A metal object being inserted in the field will weaken this field. This allows the sensor to detect how far away the object is \u2013 and act accordingly. Depending on the model, the measuring distance ranges from 0.5 to 50 millimetres.<\/p>\n

As an example in industrial automation: Steel generally has a nominal switch distance (Sn) of six millimetres. If a corresponding component drops below this distance, the sensor will trigger a movement of the gripper. The number of actions that an inductive sensor can trigger per second is called the switch frequency. Currently this value ranges from a few hundred to a thousand switches. The sensors are thus also suitable for fast production processes or real\u2013time monitoring \u2013 for example in a gasoline tank.
\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_is_the_difference_between_flush_and_non_flush_sensors” el_class=”no_padding_row”][vc_column][vc_column_text]\n

What is the difference between flush and non-flush sensors?<\/h2>\n

The question really only comes up when an inductive sensor is to be installed in a metal environment. Flush models make it possible for the active surface to fit in with its environment. An outer metal ring shields the oscillation spool and thus prevents the adjoining metal from influencing the magnetic field. Non-flush sensors have no such ring. Accordingly, they may not be flush with the surrounding material. In general, they should have a so-called free zone (distance to the next metal) of at least triple the nominal switch distance.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_needs_to_be_taken_into_account_when_inductive_sensors_are_installed_serially_or_across_from_each_other” el_class=”no_padding_row”][vc_column][vc_column_text]\n

What needs to be taken into account when inductive sensors are installed serially or across from each other?<\/h2>\n

When two flush inductive sensors are installed serially, the free zone between them should correspond to at least the diameter of the oscillation spools of the models. If the sensors are not flush, the free zone should amount to at least double of the nominal switch distance (2xSn).
\nIf the sensors are directly across from each other, the risk of them mutually influencing each other are very large. That is why the distance between them should be at least eight times the nominal switch distance (8x Sn) \u2013 and more distance would be even better.
\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_kind_of_materials\/conductive_materials_can_an_inductive_sensor_detect” el_class=”no_padding_row”][vc_column][vc_column_text]\n

What kind of materials\/conductive materials can an inductive sensor detect?<\/h2>\n

Currently, the sensors detect the following metals:<\/p>\n

– Steel<\/p>\n

– Cast iron<\/p>\n

– Nickel<\/p>\n

– Stainless steel<\/p>\n

– Copper<\/p>\n

– Aluminium<\/p>\n

– Brass[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_is_the_difference_between_nominal_switch_distance_Sn_and_real_switch_distance_Sr” el_class=”no_padding_row”][vc_column][vc_column_text]\n

What is the difference between nominal switch distance (Sn) and real switch distance (Sr)?<\/h2>\n

The nominal switch distance is measured under ideal conditions. The real switch distance calculates external factors, such as large temperature fluctuations. That is why it provides dependable values for daily use. Our models feature solid enclosures made of plastic or metal that are moulded with epoxy resin. They ensure that the effects of external influences remain controllable.[\/vc_column_text][vc_single_image image=”43088″ img_size=”full”][\/vc_column][\/vc_row][vc_row el_id=”Working_with_inductive_sensors:_the_advantages_and_disadvantages_at_a_glance” el_class=”no_padding_row”][vc_column][vc_column_text]\n

Working with inductive sensors: the advantages and disadvantages at a glance<\/h2>\n

Advantages:<\/strong><\/p>\n

– Contactless and thus low-wear<\/p>\n

– High switching accuracy and high switch frequencies<\/p>\n

– Resistant to dirt and soiling<\/p>\n

– Resistant to vibrations and impacts<\/p>\n

– Short circuit-proof<\/p>\n

Disadvantages:<\/strong><\/p>\n

– Only metals can be detected<\/p>\n

– The switch distance is so low that it is almost always necessary to install several sensors in a row<\/p>\n

– Magnetic fields can lead to disruptions in measurement accuracy which can lead to disadvantages, for example, in some motor types (hybrid)[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column][vc_column_text]\n

Other interesting articles<\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column width=”1\/3″][vc_column_text]\n

Capacitive sensor<\/h3>\n

Find out everything about the assembly and functionality of a capacitive sensor.<\/p>\n

\u00bb Capacitive sensor<\/a>[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text]\n

Capacitive filling level measurement<\/h3>\n

Find out everything about the process and functionality of capacitive filling level measurement.<\/p>\n

\u00bb Capacitive filling level measurement<\/a>[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text]\n

Filling level sensor<\/h3>\n

Find out everything about the assembly and functionality of the filling level sensor.<\/p>\n

\u00bb Filling level sensor<\/a>[\/vc_column_text][\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"

[vc_row el_class=”no_padding_row”][vc_column][vc_single_image image=”43203″ img_size=”full”][\/vc_column][\/vc_row][vc_row el_class=”contact_row”][vc_column width=”2\/3″][vc_column_text] Inductive sensor: contactless detection of metal objects approaching each other [\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_btn title=” To our inductive sensors” link=”url:https%3A%2F%2Fwww.rechner-sensors.com%2Fen%2Fproduct-category%2Finductive-sensors|||”][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column][vc_column_text]An inductive sensor is used to determine the distance to a metal object. If the distance drops below a certain value (the so-called switch distance S), then the sensor will trigger an action. That is why it is indispensable as a tool in automation processes \u2013 e.g. as a guide for the grippers used in industrial machines. It can be used in a considerably larger range of application areas, however. For example, an inductive sensor can also monitor liquid levels with the help of metal floaters. This versatility makes it a valuable tool in all industrial areas as well as in a multitude of machines.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”content_anker”][vc_column][vc_column_text] Table of contents How does an inductive sensor work? What is the difference between flush and non-flush sensors? What kind of materials\/conductive materials can an inductive sensor detect? What is the difference between nominal switch distance (Sn) and real switch distance (Sr)? Working with inductive sensors: the advantages and disadvantages at a glance Buying an inductive sensor[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”How_does_an_inductive_sensor_work” el_class=”no_padding_row”][vc_column][vc_column_text] How does an inductive sensor work? The following mnemonic helps to understand the functionality of an inductive sensor: The word “induction” comes from the Latin verb “inducere”, which means something like “guiding inside”. It registers a contact to an inserted object without touching it. The sensor has an active surface \u2013 an oscillator \u2013 on its front. This emits an electromagnetic field in a semicircle. A metal object being inserted in the field will weaken this field. This allows the sensor to detect how far away the object is \u2013 and act accordingly. Depending on the model, the measuring distance ranges from 0.5 to 50 millimetres. As an example in industrial automation: Steel generally has a nominal switch distance (Sn) of six millimetres. If a corresponding component drops below this distance, the sensor will trigger a movement of the gripper. The number of actions that an inductive sensor can trigger per second is called the switch frequency. Currently this value ranges from a few hundred to a thousand switches. The sensors are thus also suitable for fast production processes or real\u2013time monitoring \u2013 for example in a gasoline tank. [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_is_the_difference_between_flush_and_non_flush_sensors” el_class=”no_padding_row”][vc_column][vc_column_text] What is the difference between flush and non-flush sensors? The question really only comes up when an inductive sensor is to be installed in a metal environment. Flush models make it possible for the active surface to fit in with its environment. An outer metal ring shields the oscillation spool and thus prevents the adjoining metal from influencing the magnetic field. Non-flush sensors have no such ring. Accordingly, they may not be flush with the surrounding material. In general, they should have a so-called free zone (distance to the next metal) of at least triple the nominal switch distance.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_needs_to_be_taken_into_account_when_inductive_sensors_are_installed_serially_or_across_from_each_other” el_class=”no_padding_row”][vc_column][vc_column_text] What needs to be taken into account when inductive sensors are installed serially or across from each other? When two flush inductive sensors are installed serially, the free zone between them should correspond to at least the diameter of the oscillation spools of the models. If the sensors are not flush, the free zone should amount to at least double of the nominal switch distance (2xSn). If the sensors are directly across from each other, the risk of them mutually influencing each other are very large. That is why the distance between them should be at least eight times the nominal switch distance (8x Sn) \u2013 and more distance would be even better. [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_kind_of_materials\/conductive_materials_can_an_inductive_sensor_detect” el_class=”no_padding_row”][vc_column][vc_column_text] What kind of materials\/conductive materials can an inductive sensor detect? Currently, the sensors detect the following metals: – Steel – Cast iron – Nickel – Stainless steel – Copper – Aluminium – Brass[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_is_the_difference_between_nominal_switch_distance_Sn_and_real_switch_distance_Sr” el_class=”no_padding_row”][vc_column][vc_column_text] What is the difference between nominal switch distance (Sn) and real switch distance (Sr)? The nominal switch distance is measured under ideal conditions. The real switch distance calculates external factors, such as large temperature fluctuations. That is why it provides dependable values for daily use. Our models feature solid enclosures made of plastic or metal that are moulded with epoxy resin. They ensure that the effects of external influences remain controllable.[\/vc_column_text][vc_single_image image=”43088″ img_size=”full”][\/vc_column][\/vc_row][vc_row el_id=”Working_with_inductive_sensors:_the_advantages_and_disadvantages_at_a_glance” el_class=”no_padding_row”][vc_column][vc_column_text] Working with inductive sensors: the advantages and disadvantages at a glance Advantages: – Contactless and thus low-wear – High switching accuracy and high switch frequencies – Resistant to dirt and soiling – Resistant to vibrations and impacts – Short circuit-proof Disadvantages: – Only metals can be detected – The switch distance is so low that it is almost always necessary to install several sensors in a row – Magnetic fields can lead to disruptions in measurement accuracy which can lead to disadvantages, for example, in some motor types (hybrid)[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column][vc_column_text] Other interesting articles [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column width=”1\/3″][vc_column_text] Capacitive sensor Find out everything about the assembly and functionality of a capacitive sensor. \u00bb Capacitive sensor[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text] Capacitive filling level measurement Find out everything about the process and functionality of capacitive filling level measurement. \u00bb Capacitive filling level measurement[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text] Filling level sensor Find out everything about the assembly and functionality of the filling level sensor. \u00bb Filling level sensor[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":51197,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-52568","page","type-page","status-publish","hentry","entry","post-inner"],"acf":[],"yoast_head":"\nInductive sensor - Rechner Sensors<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rechner-sensors.com\/en\/documentations\/knowledge\/inductive-sensor\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Inductive sensor - Rechner Sensors\" \/>\n<meta property=\"og:description\" content=\"[vc_row el_class=”no_padding_row”][vc_column][vc_single_image image=”43203″ img_size=”full”][\/vc_column][\/vc_row][vc_row el_class=”contact_row”][vc_column width=”2\/3″][vc_column_text] Inductive sensor: contactless detection of metal objects approaching each other [\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_btn title=” To our inductive sensors” link=”url:https%3A%2F%2Fwww.rechner-sensors.com%2Fen%2Fproduct-category%2Finductive-sensors|||”][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column][vc_column_text]An inductive sensor is used to determine the distance to a metal object. If the distance drops below a certain value (the so-called switch distance S), then the sensor will trigger an action. That is why it is indispensable as a tool in automation processes \u2013 e.g. as a guide for the grippers used in industrial machines. It can be used in a considerably larger range of application areas, however. For example, an inductive sensor can also monitor liquid levels with the help of metal floaters. This versatility makes it a valuable tool in all industrial areas as well as in a multitude of machines.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”content_anker”][vc_column][vc_column_text] Table of contents How does an inductive sensor work? What is the difference between flush and non-flush sensors? What kind of materials\/conductive materials can an inductive sensor detect? What is the difference between nominal switch distance (Sn) and real switch distance (Sr)? Working with inductive sensors: the advantages and disadvantages at a glance Buying an inductive sensor[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”How_does_an_inductive_sensor_work” el_class=”no_padding_row”][vc_column][vc_column_text] How does an inductive sensor work? The following mnemonic helps to understand the functionality of an inductive sensor: The word “induction” comes from the Latin verb “inducere”, which means something like “guiding inside”. It registers a contact to an inserted object without touching it. The sensor has an active surface \u2013 an oscillator \u2013 on its front. This emits an electromagnetic field in a semicircle. A metal object being inserted in the field will weaken this field. This allows the sensor to detect how far away the object is \u2013 and act accordingly. Depending on the model, the measuring distance ranges from 0.5 to 50 millimetres. As an example in industrial automation: Steel generally has a nominal switch distance (Sn) of six millimetres. If a corresponding component drops below this distance, the sensor will trigger a movement of the gripper. The number of actions that an inductive sensor can trigger per second is called the switch frequency. Currently this value ranges from a few hundred to a thousand switches. The sensors are thus also suitable for fast production processes or real\u2013time monitoring \u2013 for example in a gasoline tank. [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_is_the_difference_between_flush_and_non_flush_sensors” el_class=”no_padding_row”][vc_column][vc_column_text] What is the difference between flush and non-flush sensors? The question really only comes up when an inductive sensor is to be installed in a metal environment. Flush models make it possible for the active surface to fit in with its environment. An outer metal ring shields the oscillation spool and thus prevents the adjoining metal from influencing the magnetic field. Non-flush sensors have no such ring. Accordingly, they may not be flush with the surrounding material. In general, they should have a so-called free zone (distance to the next metal) of at least triple the nominal switch distance.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_needs_to_be_taken_into_account_when_inductive_sensors_are_installed_serially_or_across_from_each_other” el_class=”no_padding_row”][vc_column][vc_column_text] What needs to be taken into account when inductive sensors are installed serially or across from each other? When two flush inductive sensors are installed serially, the free zone between them should correspond to at least the diameter of the oscillation spools of the models. If the sensors are not flush, the free zone should amount to at least double of the nominal switch distance (2xSn). If the sensors are directly across from each other, the risk of them mutually influencing each other are very large. That is why the distance between them should be at least eight times the nominal switch distance (8x Sn) \u2013 and more distance would be even better. [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_kind_of_materials\/conductive_materials_can_an_inductive_sensor_detect” el_class=”no_padding_row”][vc_column][vc_column_text] What kind of materials\/conductive materials can an inductive sensor detect? Currently, the sensors detect the following metals: – Steel – Cast iron – Nickel – Stainless steel – Copper – Aluminium – Brass[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_is_the_difference_between_nominal_switch_distance_Sn_and_real_switch_distance_Sr” el_class=”no_padding_row”][vc_column][vc_column_text] What is the difference between nominal switch distance (Sn) and real switch distance (Sr)? The nominal switch distance is measured under ideal conditions. The real switch distance calculates external factors, such as large temperature fluctuations. That is why it provides dependable values for daily use. Our models feature solid enclosures made of plastic or metal that are moulded with epoxy resin. They ensure that the effects of external influences remain controllable.[\/vc_column_text][vc_single_image image=”43088″ img_size=”full”][\/vc_column][\/vc_row][vc_row el_id=”Working_with_inductive_sensors:_the_advantages_and_disadvantages_at_a_glance” el_class=”no_padding_row”][vc_column][vc_column_text] Working with inductive sensors: the advantages and disadvantages at a glance Advantages: – Contactless and thus low-wear – High switching accuracy and high switch frequencies – Resistant to dirt and soiling – Resistant to vibrations and impacts – Short circuit-proof Disadvantages: – Only metals can be detected – The switch distance is so low that it is almost always necessary to install several sensors in a row – Magnetic fields can lead to disruptions in measurement accuracy which can lead to disadvantages, for example, in some motor types (hybrid)[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column][vc_column_text] Other interesting articles [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column width=”1\/3″][vc_column_text] Capacitive sensor Find out everything about the assembly and functionality of a capacitive sensor. \u00bb Capacitive sensor[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text] Capacitive filling level measurement Find out everything about the process and functionality of capacitive filling level measurement. \u00bb Capacitive filling level measurement[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text] Filling level sensor Find out everything about the assembly and functionality of the filling level sensor. \u00bb Filling level sensor[\/vc_column_text][\/vc_column][\/vc_row]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.rechner-sensors.com\/en\/documentations\/knowledge\/inductive-sensor\" \/>\n<meta property=\"og:site_name\" content=\"Rechner Sensors\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.rechner-sensors.com\\\/en\\\/documentations\\\/knowledge\\\/inductive-sensor\",\"url\":\"https:\\\/\\\/www.rechner-sensors.com\\\/en\\\/documentations\\\/knowledge\\\/inductive-sensor\",\"name\":\"Inductive sensor - 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desde m\u00e1s de 50 a\u00f1os nuestro campo de especialidad.[:it]Sensores capacitivos - desde m\u00e1s de 50 a\u00f1os nuestro campo de especialidad.[:]\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.rechner-sensors.com\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Inductive sensor - Rechner Sensors","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.rechner-sensors.com\/en\/documentations\/knowledge\/inductive-sensor","og_locale":"en_US","og_type":"article","og_title":"Inductive sensor - Rechner Sensors","og_description":"[vc_row el_class=”no_padding_row”][vc_column][vc_single_image image=”43203″ img_size=”full”][\/vc_column][\/vc_row][vc_row el_class=”contact_row”][vc_column width=”2\/3″][vc_column_text] Inductive sensor: contactless detection of metal objects approaching each other [\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_btn title=” To our inductive sensors” link=”url:https%3A%2F%2Fwww.rechner-sensors.com%2Fen%2Fproduct-category%2Finductive-sensors|||”][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column][vc_column_text]An inductive sensor is used to determine the distance to a metal object. If the distance drops below a certain value (the so-called switch distance S), then the sensor will trigger an action. That is why it is indispensable as a tool in automation processes \u2013 e.g. as a guide for the grippers used in industrial machines. It can be used in a considerably larger range of application areas, however. For example, an inductive sensor can also monitor liquid levels with the help of metal floaters. This versatility makes it a valuable tool in all industrial areas as well as in a multitude of machines.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”content_anker”][vc_column][vc_column_text] Table of contents How does an inductive sensor work? What is the difference between flush and non-flush sensors? What kind of materials\/conductive materials can an inductive sensor detect? What is the difference between nominal switch distance (Sn) and real switch distance (Sr)? Working with inductive sensors: the advantages and disadvantages at a glance Buying an inductive sensor[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”How_does_an_inductive_sensor_work” el_class=”no_padding_row”][vc_column][vc_column_text] How does an inductive sensor work? The following mnemonic helps to understand the functionality of an inductive sensor: The word “induction” comes from the Latin verb “inducere”, which means something like “guiding inside”. It registers a contact to an inserted object without touching it. The sensor has an active surface \u2013 an oscillator \u2013 on its front. This emits an electromagnetic field in a semicircle. A metal object being inserted in the field will weaken this field. This allows the sensor to detect how far away the object is \u2013 and act accordingly. Depending on the model, the measuring distance ranges from 0.5 to 50 millimetres. As an example in industrial automation: Steel generally has a nominal switch distance (Sn) of six millimetres. If a corresponding component drops below this distance, the sensor will trigger a movement of the gripper. The number of actions that an inductive sensor can trigger per second is called the switch frequency. Currently this value ranges from a few hundred to a thousand switches. The sensors are thus also suitable for fast production processes or real\u2013time monitoring \u2013 for example in a gasoline tank. [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_is_the_difference_between_flush_and_non_flush_sensors” el_class=”no_padding_row”][vc_column][vc_column_text] What is the difference between flush and non-flush sensors? The question really only comes up when an inductive sensor is to be installed in a metal environment. Flush models make it possible for the active surface to fit in with its environment. An outer metal ring shields the oscillation spool and thus prevents the adjoining metal from influencing the magnetic field. Non-flush sensors have no such ring. Accordingly, they may not be flush with the surrounding material. In general, they should have a so-called free zone (distance to the next metal) of at least triple the nominal switch distance.[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_needs_to_be_taken_into_account_when_inductive_sensors_are_installed_serially_or_across_from_each_other” el_class=”no_padding_row”][vc_column][vc_column_text] What needs to be taken into account when inductive sensors are installed serially or across from each other? When two flush inductive sensors are installed serially, the free zone between them should correspond to at least the diameter of the oscillation spools of the models. If the sensors are not flush, the free zone should amount to at least double of the nominal switch distance (2xSn). If the sensors are directly across from each other, the risk of them mutually influencing each other are very large. That is why the distance between them should be at least eight times the nominal switch distance (8x Sn) \u2013 and more distance would be even better. [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_kind_of_materials\/conductive_materials_can_an_inductive_sensor_detect” el_class=”no_padding_row”][vc_column][vc_column_text] What kind of materials\/conductive materials can an inductive sensor detect? Currently, the sensors detect the following metals: – Steel – Cast iron – Nickel – Stainless steel – Copper – Aluminium – Brass[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_id=”What_is_the_difference_between_nominal_switch_distance_Sn_and_real_switch_distance_Sr” el_class=”no_padding_row”][vc_column][vc_column_text] What is the difference between nominal switch distance (Sn) and real switch distance (Sr)? The nominal switch distance is measured under ideal conditions. The real switch distance calculates external factors, such as large temperature fluctuations. That is why it provides dependable values for daily use. Our models feature solid enclosures made of plastic or metal that are moulded with epoxy resin. They ensure that the effects of external influences remain controllable.[\/vc_column_text][vc_single_image image=”43088″ img_size=”full”][\/vc_column][\/vc_row][vc_row el_id=”Working_with_inductive_sensors:_the_advantages_and_disadvantages_at_a_glance” el_class=”no_padding_row”][vc_column][vc_column_text] Working with inductive sensors: the advantages and disadvantages at a glance Advantages: – Contactless and thus low-wear – High switching accuracy and high switch frequencies – Resistant to dirt and soiling – Resistant to vibrations and impacts – Short circuit-proof Disadvantages: – Only metals can be detected – The switch distance is so low that it is almost always necessary to install several sensors in a row – Magnetic fields can lead to disruptions in measurement accuracy which can lead to disadvantages, for example, in some motor types (hybrid)[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column][vc_column_text] Other interesting articles [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”no_padding_row”][vc_column width=”1\/3″][vc_column_text] Capacitive sensor Find out everything about the assembly and functionality of a capacitive sensor. \u00bb Capacitive sensor[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text] Capacitive filling level measurement Find out everything about the process and functionality of capacitive filling level measurement. \u00bb Capacitive filling level measurement[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text] Filling level sensor Find out everything about the assembly and functionality of the filling level sensor. \u00bb Filling level sensor[\/vc_column_text][\/vc_column][\/vc_row]","og_url":"https:\/\/www.rechner-sensors.com\/en\/documentations\/knowledge\/inductive-sensor","og_site_name":"Rechner Sensors","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.rechner-sensors.com\/en\/documentations\/knowledge\/inductive-sensor","url":"https:\/\/www.rechner-sensors.com\/en\/documentations\/knowledge\/inductive-sensor","name":"Inductive sensor - Rechner Sensors","isPartOf":{"@id":"https:\/\/www.rechner-sensors.com\/en\/#website"},"datePublished":"2018-12-11T08:44:42+00:00","breadcrumb":{"@id":"https:\/\/www.rechner-sensors.com\/en\/documentations\/knowledge\/inductive-sensor#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.rechner-sensors.com\/en\/documentations\/knowledge\/inductive-sensor"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.rechner-sensors.com\/en\/documentations\/knowledge\/inductive-sensor#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Start","item":"https:\/\/www.rechner-sensors.com\/en"},{"@type":"ListItem","position":2,"name":"Documentation","item":"https:\/\/www.rechner-sensors.com\/en\/documentations"},{"@type":"ListItem","position":3,"name":"Knowledge","item":"https:\/\/www.rechner-sensors.com\/en\/documentations\/knowledge"},{"@type":"ListItem","position":4,"name":"Inductive sensor"}]},{"@type":"WebSite","@id":"https:\/\/www.rechner-sensors.com\/en\/#website","url":"https:\/\/www.rechner-sensors.com\/en\/","name":"Rechner Sensors","description":"[:de]Marktf\u00fchrer in kapazitiver Sensortechnologie und Qualit\u00e4t.[:en]Capacitive Sensors \u2013 for more than 50 years our special field.[:fr]Les capteurs capacitifs \u2013 depuis plus de 50 ans notre c\u0153ur de m\u00e9tier.[:es]Sensores capacitivos - desde m\u00e1s de 50 a\u00f1os nuestro campo de especialidad.[:it]Sensores capacitivos - desde m\u00e1s de 50 a\u00f1os nuestro campo de especialidad.[:]","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.rechner-sensors.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.rechner-sensors.com\/en\/wp-json\/wp\/v2\/pages\/52568","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rechner-sensors.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.rechner-sensors.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.rechner-sensors.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rechner-sensors.com\/en\/wp-json\/wp\/v2\/comments?post=52568"}],"version-history":[{"count":0,"href":"https:\/\/www.rechner-sensors.com\/en\/wp-json\/wp\/v2\/pages\/52568\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.rechner-sensors.com\/en\/wp-json\/wp\/v2\/pages\/51197"}],"wp:attachment":[{"href":"https:\/\/www.rechner-sensors.com\/en\/wp-json\/wp\/v2\/media?parent=52568"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}