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本文介绍弹性表面波陀螺的概况.和激光陀螺一样,弹性表面波陀螺的理论也是在赛格奈克理论基础上建立的.这类陀螺的灵敏度取决于1/λc(λ为波长;c为波速),由于表面波速比光速慢得多,就有可能得到比激光陀螺更高的灵敏度.表面波陀螺有几种基本结构形式,其中有一种利用无接触的电磁换能器的双向性,在旋转园柱体表面产生方向相反的两束表面波,使之形成驻波,由接收换能器接收.根据接收到的讯号可以测定频率及园柱体转速等数据.表面波陀螺比激光陀螺可能有更多的优点:如灵敏度高、体积小、重量轻、设计简单、加工容易及价格便宜等.
This article presents an overview of surface acoustic wave gyroscopes. Like a laser gyroscope, the theory of surface acoustic wave gyroscopes is also based on the Sonican theory. The sensitivity of such gyroscopes depends on 1 / λc (λ is the wavelength; c is the wave velocity ), It is possible to obtain higher sensitivity than laser gyros due to the much slower surface wave velocities than the speed of light.Surface Gyro gyros have several basic structural forms, one of which utilizes the bidirectional nature of a contactless electromagnetic transducer, The surface of the cylinder produces opposite directions of the two surface waves to form a standing wave, which is received by the receiving transducer. Based on the received signal, the data such as frequency and cylinder speed can be measured. More advantages: such as high sensitivity, small size, light weight, simple design, easy processing and low price.