In the case of inconvenience, the cable displacement sensor of the hydraulic cylinder is used to detect the extension length of the cylinder, which is a more accurate measurement method, because the hydraulic cylinder is a hydraulic actuator that converts it into mechanical energy and does linear reciprocating motion. The device has a simple structure and reliable operation. The reciprocating motion using this mechanism does not require a deceleration mechanism, no transmission clearance, and stable action, so it is widely used in the hydraulic system of various machines. The number of pulses and output lines of the multi-channel encoder can be selected, and the outgoing form is either cable end out or rear outlet. It is economical and easy to install.
Problems that should be paid attention to when applying hydraulic cylinder wire displacement sensors:
The actual stroke of the cable-type displacement sensor is the maximum stroke in which the moving part participates. The output signal can be digital or analog, and it can be supplied to the sensor's supply voltage. The actual measured part of the motion is the accuracy level and resolution. The working environment is affected by temperature, humidity, dust, etc.
The amount of stretch and reciprocating motion of moving parts may be inconsistent. The number of exercises that can be exercised back and forth throughout the day in the exercise section. When selecting a pull-off encoder, the pre-drawn distance should be fully considered, and if the pre-drawn distance is large, an extension wire should be added to the probe, which can reduce the probe range and save a lot of costs.