匙庆磊,杨学山,尚帅锟.无源伺服反馈多输出低频振动传感器[J].仪器仪表学报,2017,38(1):105-111
无源伺服反馈多输出低频振动传感器
Passive servo feedback multi output low frequency vibration sensor
  
DOI:
中文关键词:  低频振动  多输出拾振器  低频拾振器  无源伺服反馈  速度摆
英文关键词:low frequency vibration  multi output vibration pickup  low frequency vibration pickup  passive servo feedback  speed pendulum
基金项目:
作者单位
匙庆磊 中国地震局工程力学研究所中国地震局地震工程与工程振动重点实验室哈尔滨150080 
杨学山 中国地震局工程力学研究所中国地震局地震工程与工程振动重点实验室哈尔滨150080 
尚帅锟 中国地震局工程力学研究所中国地震局地震工程与工程振动重点实验室哈尔滨150080 
AuthorInstitution
Chi Qinglei Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China 
Yang Xueshan Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China 
Shang Shuaikun Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China 
摘要点击次数: 702
全文下载次数: 1100
中文摘要:
      介绍了一种无源多输出低频振动传感器,可同时测量加速度和速度。利用无源伺服反馈控制技术,传感器呈现速度摆特性,但该速度摆不是通常意义上大阻尼状态的速度摆,对摆体特性进行了详细的数学分析,仅使用一种换能方式即实现了加速度和速度两组物理量的测量,证明了速度输出是速度摆速度计,加速度输出是速度摆加速度计。对传感器特性,尤其是加速度输出特性进行了较为详细的分析。最后,对传感器进行了测试,得到该传感器的加速度输出和速度输出在0.1~100 Hz有较好的频率响应特性,可以满足低频工程振动测量的需求,且实现了一只传感器同时测量加速度和速度两种物理参量。
英文摘要:
      In this paper we introduce a new passive multi output low frequency vibration sensor that can measure acceleration and speed of the waves. Using the passive servo feedback control technique, the sensor shows the characteristics of a speed pendulum, which, however, is not the usual speed pendulum in large damping state. A detailed mathematical analysis is carried out on the characteristics of the pendulum body. Simultaneous measurements of both acceleration and speed can be achieved using only one transducing mode. It is proved that the speed output is the output of the speed pendulum speedometer and the acceleration output is the output of the speed pendulum accelerometer. We also analyze the characteristics of the sensor, especially analyze the acceleration output characteristics in detail. Finally, the sensor was tested, and good frequency response characteristics of acceleration output and speed output of the sensor in the frequency range from 0.1 Hz to 100 Hz were obtained, which satisfies the requirement of low frequency engineering vibration measurements, and the goal of using one sensor to measure both acceleration and speed at the same time is achieved.
查看全文  查看/发表评论  下载PDF阅读器