Do you know the reason for the failure of precision rope displacement encoder? Do you know the
pulse input type of rope displacement encoder uses pulse encoder as a measuring element. Pulse encoder is an optical position detection element. The installation needs to be standardized. Most displacement encoders The installation has high requirements for neutrality, parallelism, perpendicularity or concentricity. Today I will share with you:
1. If the installation deviation is large, the measurement error of the sensor can be increased, and the measurement data may be bounced when severe. The wiring of the displacement encoder must be accurate. If the signal line is connected to the power supply by mistake, the sensor will have a large linear error, poor control accuracy, and severe fluctuations in the displayed data. Especially easy to damage the sensor.
2. Mechanical shock can affect the measurement accuracy and service life of the displacement encoder. The higher the shock frequency and the greater the amplitude, the greater the impact on the sensor. In the process of installation and use, users can reduce the shock frequency and amplitude of the equipment through shock absorption treatment.
3. For more severe occasions, consider using non-contact displacement sensors such as LVDT displacement sensors and magnetostrictive displacement sensors to replace contact displacement sensors such as resistive linear displacement sensors and drawstring displacement sensors.
4. Displacement encoders are commonly used as industrial power supplies with relatively stable voltages. For potentiometer principle sensors such as resistive linear displacement sensors and pull-rope displacement sensors, if the power supply voltage fluctuates greatly, the measurement and control data of the displacement sensor will jump accordingly. For departmental open-air projects, if it is unfavorable to install industrial power supplies, consider using solar batteries for power supply, or use low-power displacement sensors to reduce the sensor's use time and sampling frequency, and increase the battery's life cycle.
5. The automation application site usually has complicated electrical, magnetic, water, and oil environments, and the electrostatic interference and electromagnetic interference are relatively severe, which has the most severe impact on the quality of measurement and control data.
6. The installation and use of standard operation, good grounding, the sensor signal line and the equipment power line separate wiring, away from various high-power equipment and high-frequency interference sources, can reduce the impact of the external environment on the sensor. For special occasions with severe field interference, the signal quality can be confirmed by technical means such as software and hardware filtering or electromagnetic isolation.