What Is A Proximity Sensor?

 

So our first question is “What is a proximity sensor?”. A proximity sensor is a type of sensor that is used to detect the presence of an object. Proximity sensors use various technology and then send signals in a direction to detect the presence/absence of an object in that particular direction. If there is a change in the field or in the return signal, then the instrument determines that there is an object present in that direction. The proximity sensors are very reliable and enjoy a longer lifetime. The object whose presence is detected is called the ‘Target’ of the proximity sensor.

 

Starting from industrial applications to mobile phones, proximity sensors have created their special fandom in many sectors. Depending on the material type of the targets, the distance between target and sensor, and many other parameters, there are different proximity sensors used for different applications. In this blog, we are going to dive deeper into the different types of proximity sensors. So, continue reading the blog as more interesting stuff is yet to come.

 

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What Are the Different Types of the Proximity Sensors?

 

On the basis of the technology and the types of the sensors used, the proximity sensor can be divided into 4 types, viz.

1. Inductive sensor
2. Capacitive sensor
3. Photoelectric sensor
4. Ultrasonic sensor

 

1. Inductive Sensor

• These are based on the principle of Inductance. These possess four substantial parts namely a ferrite core with coils, an oscillator, a Schmitt trigger, and an output amplifier. This type of sensor produces an electromagnetic field to detect the presence of the target.
• It can detect the ferrous material with the help of the Eddy current induced on the material surface because of the magnetic field produced by the inductive sensor.
• These possess a target detection range from a fraction of millimeters to 60 mm on average.
• They are mostly found Some of the common places where these sensors are used include metal detectors, carwashes, traffic lights, and automated industrial processes. Visit our website and Buy Pepperl Fuchs Proximity sensor with premium quality, better reliability and longer working life.

2. Capacitive Sensor

• These are based on the principle of capacitors and capacitance. These sensors produce an electrostatic field to detect the target.
• These sensors can detect both the metallic and non-metallic targets which are present in different forms like solid, liquid, powder, and granular.
• As these involve charging of plates, hence slower in operation. These possess a target detection range from a few millimeters to 1 inch (25mm) or so.
• Due to their non-ferrous detection, these are suitable for use in applications like sight glass monitoring, tank liquid level detection, and also for hopper powder level detection. Alongside this, these are used for many metallic detections as well.

3. Photoelectric Sensor

• Photoelectric sensors are based on rapidly advancing photoelectric technology. The main basic components present in these sensors are an emitter light source, a photodiode or phototransistor receiver, and supporting electronics designed to amplify the receiver signal.
• The photoelectric sensors can be used to detect most the materials like metal, plastic, and wood.
• Due to the advanced use of photoelectric technology, these can sense the target present up to a distance of 60 meters or so.
• These sensors are found in huge demand and application in the industrial manufacturing sectors.

4. Ultrasonic Sensor

• The Ultrasonic sensors deploy sound waves to detect the presence of a target.
• It detects several kinds of materials like plastic, glass, wood, and metal.
• The target detection distance ranges from 1 cm up to 11 meters.
• These are mainly used in the automated production process. As these are not affected by the color and transparency of the target, that’s why they are used for applications like the detection of clear glass or plastic.

What Do We Offer?

We at Indus automation are providing the best-in-class automation equipment from the well-recognized and quality equipment manufacturers like Pepperl + Fuchs, Autonics, Envitec, and Honeywell. Get the best quality actuators from the large assortment present on our website. Check out and Buy Pepperl Fuchs Proximity sensor at the best price from our website, with the trust of the world-famous Pepperl Fuchs brand and the reliability of Indus automation which is one of the best automation instrument distributors in India.

Conclusion

To buy Buy Pepperl Fuchs Proximity sensor or for any queries, you can contact us at 022 4970 1186 or mail us at marketing@indusautomation.co  / induscorp.mumbai@gmail.com. We will be really glad to help you out. If you have any doubts related to the proximity sensor and its types, then drop a comment below and we will get back to you at the earliest.

 

Key Takeaways

• A proximity sensor is a type of sensor that is used to detect the presence of an object.
• Starting from industrial applications to mobile phones, proximity sensors have created their special fandom in many sectors.
• The object whose presence is detected is called the ‘Target’ of the proximity sensor.
• On the basis of the technology and the types of the sensors used, the proximity sensor can be divided into 4 types, viz. Inductive sensor, Capacitive sensor, Photoelectric Sensor, and Ultrasonic sensor.
• Different types of targets demand different sensors. For example, a photoelectric or capacitative proximity sensor is more suitable for plastic material and the inductive proximity sensors are suitable for metal targets.