There are many kinds of displacement sensor, linear displacement transducer, slider displacement sensor, the magnetostrictive displacement sensor, laser displacement sensor, etc. Is linear displacement transducer used in it, we are often occur when using the sensor data, this is mainly caused by the following reasons.

First of all, appear this kind of circumstance, there is need to check the cable insulation damage phenomenon, and contact with machine shell is regularly and cause of short circuit. Second, installation of linear displacement sensor to neutral need is very good, but the degree of parallelism can be allowed to have the error of + / - 0.5 mm, the error of plus or minus 12 ° Angle can allow. But if the parallelism error and Angle error is big, so there will be a display of digital pulse. Then appear such circumstance, must adjust parallelism and point of view. Again, three line is not straight line displacement sensor can be wrong, you can't switch the power cord and output. If the above line wrong, can appear linear error is large, it is difficult to control, control accuracy will become is very poor, and shows that it is easy to appear beat phenomenon, and so on. And the frequency modulation interference and electrostatic interference are likely to make linear displacement transducer electronic scale display of digital pulse. So, electronic scale signal lines and equipment of high voltage lines to separate trough. Electronic scale must be mandatory to ground. Signal lines need to use the shielded wire and electric box should be with a shielded wire grounding. If there is a high frequency interference, usually using a multimeter voltage measurements will show normal, but the display number is beating continuously; And electrostatic interference, the scenario is the same as high frequency interference. To prove whether electrostatic interference, just the electronic scale with a power cord cap screw machine with some metal short pick up is ok, as long as a short together, will immediately eliminate electrostatic interference. But if you want to eliminate the high frequency interference, it is hard to use the above methods, it can pause test under high frequency interference sources, shows the result will be better, in order to distinguish the high frequency interference problem.

Knowing the cause of the displacement sensor data to beat is very helpful to us, normally we encountered this kind of situation will not don't know what the reason, on the contrary we can also take appropriate measures for processing, we better use linear displacement sensor.