Find all of the leading manufacturers of proximity sensors on DirectIndustry.
Processing Magazine invites you to visit DirectIndustry. DirectIndustry is an international online industrial exhibition where you will be able to contact manufacturers specialized in industrail products such as proximity sensors, relays, switches and controllers.
Ultrasonic Proximity Sensor
An ultrasonic proximity sensor uses piezoelectric crystals to generate and detect sound waves. These high frequency sound waves can either echo off objects to determine their distance/proximity or they use a separate emitter and detector to determine the presence. The three types of ultrasonic proximity sensors found are through beam sensors retro-reflective and diffuse reflection. There is no physical contact between the proximity sensor and the object being detected.
A photoelectric sensor uses light beams to detect the presence or proximity of an object. They are used in applications where common inductive proximity sensors cannot sense objects at long distances or non-metallic objects. Photoelectric sensors come in different sizes and configurations such as block type, cylindrical, wireless. When selecting a photoelectric sensor be sure to specify whether you need a retro-reflective type, diffuse reflective type or through beam type detection.
Eddy Current Displacement Sensor
For applications requiring high-resolution, conductive position or displacement measurements, eddy current displacement sensors are a top choice among engineers and technicians. Eddy-current sensors create and alternating magnetic field which induces a current in the target material and is then picked up by the sensor. They are used to measure very small vibrations in machinery such as engine crankshafts, roller displacements and concentricity.