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Shenzhen Juli Sensing Technology Co., Ltd.

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Several different displacement sensor manufacturers' application methods and precautions
Release Time:2019-11-16

Several different displacement sensor manufacturers' application methods and precautions

  With the continuous expansion of the scope of application of sensor manufacturers, our demand for it is gradually increasing. At the same time, there is a higher demand for the quality and function of the sensor itself, especially as a displacement sensor for accurate testing. Is the displacement sensor). For those who use displacement sensors for R&D, it is necessary to understand the application methods and precautions of the displacement sensor. Before understanding the application of the displacement sensor, Xiaobian first briefly introduces the primary characteristic parameters of the displacement sensor (linear displacement sensor).

  The primary characteristic parameter of the displacement sensor (displacement sensor principle)

  Nominal resistance: The resistance indicated on the potentiometer.

  Allowable Negligence: The percentage of the difference between the nominal resistance and the internship resistance and the nominal resistance is the resistance value, which indicates the accuracy of the potentiometer. Tolerance is generally satisfied within ±20%, because the general displacement sensor is applied by partial pressure. The size of the specific resistance has no effect on the data collection of the sensor.

  Linear accuracy: linearity error. The smaller the parameter, the better.

  Lifespan: Conductive plastic displacement sensors are more than 2 million times.

  Repeatability: The smaller the parameter, the better.

  Resolution: The minimum displacement value that the displacement sensor can reverberate. The smaller the parameter, the better. The resolution of the conductive plastic displacement sensor is infinitesimally small.

  The operation of the displacement sensor:

  Generally, a voltage is applied to the displacement sensor, and the excellent smoothness is used to check the output voltage (output resistance changes the output voltage). After editing and collating, the linear displacement sensor and the magnetoelastic displacement sensor are taken as examples to briefly analyze the application of the displacement sensor.

(1) The use of linear displacement sensors:

  Minor MINOR's precision linear displacement sensor is equipped with a long continuous conduction track divider type sensor. It is suitable for position-shifting sensing in control and measurement applications with a linear accuracy of 0.05%. It has the characteristics of fast movement and long life, which is in line with the control requirements of the gantry type precision hydraulic press.

  According to the internship request, the K1 lower slide type and KTC rod type linear displacement sensor are respectively arranged on the main cylinder and the hydraulic pad of the hydraulic press. In a semi-automatic working process, the main cylinder and hydraulic pad of the hydraulic press move two linear displacement sensors respectively, and input the two simulated values into the FX2N-8AD. The FX2N-8AD imitates the input value. Is the voltage input), converted to digital values, and transferred to the PLC main unit. The useful measurement length of the master cylinder and hydraulic pad using linear displacement sensor is 500mm and 400mm.


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