Lead: With the rapid development of science and technology, various high-tech technologies have advanced by leaps and bounds. I believe many people have heard of the term "capacitance", especially students majoring in physics. The inductive sensor introduced in this paper is based on this principle. Inductive sensor can reduce the influence of its own distributed capacitance and has a wide range of uses, but many netizens still don't know its application principle. This paper will introduce the application principle and requirements of inductive sensor in detail. If you don't understand, come and join us!

Inductive sensor-Based on the principle of electromagnetic induction, the measured non-electric quantities such as displacement, pressure, flow rate and vibration are converted into the change of coil self-inductance L or mutual inductance M, and then converted into the output of voltage or current change by the measuring circuit.

Application of induction sensor

Inductive sensor has the outstanding advantages of simple structure, fast dynamic response and easy to realize non-contact measurement. It is especially suitable for liquid level measurement of acid, alkali, chloride, organic solvent, liquid CO2, ammonia, PVC powder, ash, oil-water interface, etc. At present, it is widely used in metallurgy, petroleum, chemical industry, coal, cement, grain and other industries.

Requirements for induction sensors

1, detection distance attenuation. Slip is made of iron and is suitable for inductive sensor detection; However, the size of the detected valve is slightly smaller than the standard detection object (the size of the standard detection object is three times of the rated detection distance, and in this application, the standard size should be 120* 120mm), so there will be some attenuation.

2. On-site anti-interference ability. This is a problem that cannot be ignored. Ordinary inductive sensors are easily disturbed by motors or frequency converters. Many technicians only choose sensors with strong anti-electromagnetic interference for applications around here. However, in the automobile manufacturing workshop, the workshop is large, and the on-site technicians are used to using walkie-talkies, especially when talking with walkie-talkies while walking, they will inadvertently approach the sensors, leading to short-term failures.

3. installation. With the popularization of inductive sensors, not only the electrical performance of sensors is improved, but also the mechanical design is more and more humanized. It is necessary to realize humanized installation to the greatest extent. Reduce the inventory of similar products and reduce the time of installation and maintenance.

4, the guarantee of stable operation. In the use of garage, we must put an end to any oil erosion and dust pollution. In addition, vibration will exist for a long time when slipping through the track, and excellent vibration resistance also plays a very important role.

The classification of inductive sensor is not diversified, but it has a wide range of applications. Inductive sensor is developing faster and faster in society with its profound technical content. Inductive sensor is the most potential development force not only now, but also in the future. Through the above introduction, I believe you have your own understanding of inductive sensors. Although Bian Xiao is a bit rough in some places, Bian Xiao is quite satisfied if he can really help you.

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