... : +18Vdc~ +30Vdc 3.Frequency response: 0 ~ 10 kHz YD9800 Vibration Displacement Sensor can measure the relative position of the measured ... long-term real-time monitoring the shaft displacement, shaft vibration, shaft speed and other parameters of the large rotating ... widely used for online monitoring and fault diagnosis of displacement, vibration, rotational speed, the oil film thickness of the steam ...