The characteristics of the wire rope displacement encoder and its application in the steel rolling speed control system The
resolution of the wire rope displacement encoder refers to the ability of the sensor to feel the changes being measured. In other words, if the input quantity changes slowly from a certain non-zero value. When the input change value does not exceed a certain value, the output of the sensor will not change, that is, the sensor cannot distinguish the change of this input. Only when the input change exceeds the resolution, the output will change.
The cable-drawn displacement encoder has high sensitivity, high repeatability, nearly unlimited rotation life, and good high frequency response characteristics. It has strong environmental applicability and can be used in harsh industrial environments such as water, oil, steam, dust, high and low temperature, vibration and shock. For the problem of power supply, those encoders that do not need autonomous power supply should be eliminated here. The power supply of ordinary displacement encoders is 24 volts. If the power supply capacity becomes smaller, the movement of the sol will cause the display of the mold-closing electronic ruler to fluctuate or fluctuate, and it may also cause the mold-closing movement to cause the injection displacement sensor Fluctuations occur, leading to relatively large errors in the measurement results. If the drive power supply of the solenoid valve and the drive power supply of the linear displacement sensor are all together, these situations will easily arise. If the situation is very severe, the voltage fluctuation can be tested with a multimeter.
The wire rope displacement encoder is used in the steel rolling speed regulation system. Because the pulse encoder is directly bolted to the housing of the motor, its shaft is connected to the motor shaft through a harder spring, because the load of the motor is Impact load will cause vibration of the motor shaft and housing when the rolling mill passes steel. It has been determined that the vibration speed when passing through steel is 2.6mm/s, which will damage the internal function of the encoder. Causes to send pulses by mistake, which leads to instability or malfunction of the control system, leading to accidents.