一种无线振动传感器频响带宽提高方法

高频响无线振动传感器是机械设备预测性维护领域不可或缺的信号采集设备,目前机械设备监测应用中常用的无线振动传感器频率响应较低,限制了其在机械设备预测性维护领域的应用;为了进一步提高无线振动传感器频率响应带宽,提出一种提高无线振动传感器频响范围的方法,从结构设计、振动探头设计、信号调理链路设计和模数转换器设计4个方面对传统无线振动传感器进行了改进;实验结果表明,无线振动传感器带宽提高方法将无线振动传感器频率响应带宽提高了7.96 dB;在振动监测领域具有较强的实用性,对智能传感器制造领域具有较好的指导意义.

Method for improving frequency response bandwidth of wireless vibration sensor

High-frequency response wireless vibration sensors are indispensable signal acquisition equipment in the field of predictive maintenance of mechanical equipment. At present, wireless vibration sensors commonly used in mechanical equipment monitoring applications have a low frequency response, which limits their application in the field of mechanical equipment predictive maintenance. In order to further improve the frequency response bandwidth of the wireless vibration sensor, a method to improve the frequency response range of the wireless vibration sensor is proposed. The method is compared with the traditional four aspects: structure design, vibration probe circuit design, signal conditioning link design and analog-to-digital converter design. The wireless vibration sensor has been improved. The experimental results show that the wireless vibration sensor bandwidth improvement method increases the frequency response bandwidth of the wireless vibration sensor by 7.96dB. It has strong practicability in the field of vibration monitoring and has guiding significance for the field of smart sensor manufacturing.