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An inductive proximity sensor is a sensing device that detects metal targets using electromagnetic energy and without contact. The sensing range of an inductive proximity sensor changes based on the type of metal being detected. Since non-metallic substances such as dirt and liquid do not interfere with detection, an inductive proximity sensor operates in wet or dirty conditions.
An inductive proximity sensor creates an electromagnetic field (depicted as the yellow circles in the drawings below) in the vicinity of the face of the sensor to create a detection zone. A detection occurs and the sensor switches on when a metal target in the vicinity of the sensor disturbs that field and reaches the Operate Point. The sensor switches off when the target moves away from the sensor and reaches the Release Point.
Since non-metallic substances such as dirt and liquid do not interfere with detection, an inductive proximity sensor operates in wet or dirty conditions. As a result, an inductive proximity sensor does not need to come into physical contact with the target itself.
Deciding which sensor to purchase and selecting the right one for your application can be a confusing task. However, the decision is important and the successful application of the sensors depends on the selection of the appropriate technology for the application.
Visit our page to learn how to select the right sensor.
Not sure if Eaton sensor and limit switch solutions are right for you? You can request samples of Eaton sensors FREE OF CHARGE to test them with your machine applications. We will make our Eaton experts available to assist with product selection and provide technical guidance so that you choose the right sensor for your needs.
Analog sensors – specialty switches that provide an electrical output signal that varies in proportion to the position of the target within its sensing range. These sensors typically have current (4-20mA) and/or voltage (0-10V) output circuits to interface with standard analog logic input circuits.
Ferrous-only sensors – specialty switches that detect only ferrous metals such as steel, iron, nickel, and cobalt. A typical application for this sensor type is a work cell where cutting tools, tool pallets, and fixtures must be detected for proper workpiece manipulation. These sensors detect ferrous tools while ignoring aluminum.
Programmable sensors – specialty switches that can be programmed to solve a wide variety of applications. In these devices, sensor characteristics such as sensing range, output type, timing delays, shielding, and detection zone characteristics can be customized to the needs of each specific application location on a machine.
High current output sensors – specialty switches that are rated for switching high DC output current loads.
For demanding sensing applications in areas too small for standard length units, the E57PS Performance Short Body series is an ideal solution delivering unmatched high noise immunity and short-circuit protection.
The E52Q Cube sensor is a rugged, robust, long-range inductive sensor, featuring convenient auto-configuring outputs that automatically detect an NPN or PNP output configurations.
Eaton's AccuProx sensors are built with robust stainless-steel barrels, shock-resistant front caps, polycarbonate end bells and impact-absorbing potting compound to survive the most hostile industrial environments.
