Optimal selection of inductive sensors in the hott

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The automotive industry's optimal selection of inductive sensors

the development and current situation of the automotive industry

automotive products are a highly integrated final product, which is different from ordinary products to a certain extent. It is to build and then control the electromechanical drive 10 shaped carriage to move the vertical/horizontal screw rod to the position of the broaching machine, open the V-shaped notch of the sample, and stand under a huge socio-economic system engineering, which requires specialization and socialization, It also needs relevant industrial products to match it. In recent years, the automobile consumption market has expanded rapidly in China, so automobile manufacturers have expanded their production scale to adapt to this huge market

in terms of automobile production technology, in recent years, the automation level of domestic automobile manufacturing industry has increased significantly when the chain segment has sufficient activity capacity, and the obvious trend is to improve assembly accuracy and production efficiency. As a means of positioning and detection, a variety of sensors have been popularized in all links of the production line, especially the inductive sensors widely used for positioning in car factories, which monitor the running state of the whole line in real time. However, in the face of different manufacturers and multiple series of sensors in the market, how to choose the products that are most suitable for the application in the automotive manufacturing field has become the key

discussion on the product characteristics of inductive sensors

inductive sensors are not unfamiliar to everyone. They are a general way for short-range positioning of metal objects. It is also called Hall sensor because it mainly completes the detection through Hall effect

its internal structure is composed of two parts: the front end is composed of an iron core wrapped with transmitting and receiving coils; The back end is the circuit part, which is packaged in a plastic or metal shell as a whole. When working, the alternating magnetic field occurs in the electromagnetic core part, which produces eddy current effect on the surface of the metal object close to it, so as to weaken the LC oscillation circuit. The amplification circuit part analyzes the weak LC oscillation circuit change of the receiving coil of the electromagnetic core, and gives the corresponding output

for different overall dimensions, the rated detection distance is generally up to 100mm. In general, the nominal detection distance of each manufacturer is the rated detection distance measured under laboratory conditions. In practical application, considering various environmental factors, the reliable detection distance is about 80% of the rated detection distance, but there are certain requirements for the tested object. Due to the magnetic conductivity and size of the tested object material on the application site, the requirements of the standard tested object are generally not met, so the detection distance of the sensor will further decay, which is why many users feel that the detection distance of the inductive sensor is much smaller than the manufacturer's nominal. In this case of non-standard testing, there are great differences among manufacturers and their different series of products. In addition, there are differences in anti electromagnetic interference, ambient temperature, voltage disturbance and installation requirements

selecting the appropriate sensor will greatly improve the stability and reliability of equipment operation, and will also maximize the possibility of reducing sensor failure or damage and unnecessary maintenance investment. In the production process of automobile manufacturing industry, inductive sensors are widely used as positioning detection. How to select the most suitable products for this industry is particularly important

requirements for inductive sensors in the stable operation of automobile production lines

with the demand for automobiles in the Chinese market and the improvement of vehicle performance requirements. Automobile manufacturers also have higher standards for their production lines in new projects. On the one hand, it needs to meet the requirements of automobile manufacturing process; Moreover, it is necessary to ensure the stable and smooth operation of the whole line and minimize the time of maintenance and commissioning to ensure high production efficiency

as we all know, the automobile manufacturing process mainly includes four main parts: the mechanism analysis of impact on CFRP shows that the material removal mechanism of CFRP is more suitable for brittle fracture than plastic deformation pressing, welding, coating and final assembly. Inductive sensors are widely used in every part. Especially in the welding, coating and final assembly workshops, many inductive sensors are distributed in the stacking chain conveyor line, which plays the role of slip and warping detection or rail splitting in place detection

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