| 一种谐振式传感器频率特性测试平台 |
| Frequency Characteristics Measuring Platform of Resonant Sensors |
| 修订日期：2006-11-21 |
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| 中文摘要: |
| 谐振式传感器的谐振频率和Q值可以通过其频率特性计算得到,因此需要有一种通用的测试平台来测量各种不同谐振式传感器的频率特性.本文描述了一种谐振式传感器频率特性测试平台,并提出了一种采用间歇激励方法测试谐振式传感器谐振频率的新方法,采用线性调频信号激励谐振式传感器,传感器自由振动状态下的振动频率即是传感器的谐振频率;测得传感器自由振动状态下的振动频率,即可得到谐振式传感器的谐振频率. |
| 英文摘要: |
| The resonant frequency and value Q of the resonant sensor can be obtained by calculating its frequency characteristic. The frequency characteristic measurement of the resonant sensor requires a platform that could measure a great number of resonant sensors. A universal frequency characteristics measuring platform is presented in this paper. A novel burst resonant frequency measuring method is also presented, that utilizes a chirp signal to excite the resonator. The free vibrating signal of the sensor is detected and the free vibrating frequency of the sensor just is the resonant frequency. |
| 蔡晨光 樊尚春 邢维巍 |
| 北京航空航天大学仪器科学与光电工程学院,北京100083 |
| 中文关键词: 频率特性 谐振式传感器 Q值 数据采集 |
| 英文关键词:frequency characteristics resonant sensors Q factor data acquisition |
| 基金项目:国家自然科学基金 |
| DOI： |
| 引用本文：蔡晨光,樊尚春,邢维巍.一种谐振式传感器频率特性测试平台[J].计测技术,2007,27(1):11~13,60. |
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