ELECTRO DYNAMIC SENSOR FOR MONITORING WIND TURBINES
This electro dynamic sensor provides a superior performance to piezoelectric devices by combining high measurement sensitivity with a frequency response down to 0.1Hz. This level of sensitivity, along with excellent noise performance, provides the dynamic range required for detailed analysis of gearbox vibration, so it is ideal for measuring velocity vibration on equipment with speeds below 300rpm.
The VEL/GLF has further advantages over piezoelectric-based velocity vibration sensors, which are susceptible to many forms of interference in low-frequency applications. As a result of its robust design, the sensor offers high noise immunity due to the low impedance electro dynamic nature of the sensor assembly. In addition to the filtering of high frequency events and since no electronic integration is required, the design of the sensor is immune to the saturation problems that impair the reliability of other piezoelectric devices.
