Proximity sensors: Types, usage, and features

Proximity sensors are popularly used in industrial and commercial applications nowadays. They are predominantly used for detecting metal objects without having physical contact. Thus, no abrasion or damage is caused to the object. These sensors are far better and superior to limit switches that can detect the object when there is physical contact or touch. The service life is longer, and they are quite sturdy and reliable. Proximity sensor manufacturers make specialized models offer excellent chemical resistance that makes them suitable for the chemical or pharmaceutical industry. Since you can use them in a variety of applications, there is always a demand for high-quality proximity sensors.

Technical Features

• They are available in multiple types of surface mounts, e.g., Cylindrical and rectangular
• The sensing range is from .5mm to 100mm and more
• Terminal or cabled connections with quick disconnect
• Can support AC, NAMUR, AC, and DC both

These sensors have high-speed response than switches, and they can work in extremely high and low temperatures ranging from -50 to 200 degrees Celsius. Inductive type sensors can detect the presence of metallic objects.
How does an inductive metallic proximity sensor work?
The oscillator winding is the sensing face that generates an alternating magnetic field. When any metallic object comes near the sensor, there is a change in the strength of the magnetic field. The change in the field determines the distance of the object. Due to high accuracy and rugged performance, these sensors are very popular in industrial and commercial applications.

Excellent sensing range and higher efficiency make them ideal for traffic light systems, metal detectors, conveyor belts, airports, and marine applications, etc. Proximity sensor manufacturers supply large quantities of sensors to defense, aeronautical companies, and marine and mining industries where the instruments are required to operate in extreme climatic conditions. They do not get affected by the physical properties or changes in the physical properties of an object, making them ideal for all environments. However, there is a word of precaution. Inductive as well as capacitive proximity sensors face interference problems with other sensors.

Hence, care should be taken while installing them. Mutual interference should be avoided. Also, surrounding metallic objects can also cause an adverse effect on the performance of the proximity sensors. These precautions should be taken for both capacitive as well as inductive sensors. Certified Proximity sensor manufacturers supply good-quality stuff based on user specifications. It gives long-lasting, reliable service. Contact most reputed proximity sensor manufacturers, to get the best quality proximity sensor for your industrial applications.
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