【摘要】 在超导精密仪器的研制工作中有时需要测量杜瓦容器内超导体的微小位置变化.由于超导体需运行在极低温环境,运用常规方法难以对超导体的微小位移进行测量.作者选用光纤位移传感器进行非接触测量,研究了光纤位移传感器在室温和液氮温度下的静态传输特性.本项研究为超导体位移、振动的测量提供了一种新的方法.更多还原

【Abstract】 Tiny displacement of the superconductor in Dewar has to be measured when it works as the core part of the precise apparatus.But conventional methods are not suitable for the tiny displacement detection under cryogenic environment.So fiber optic displacement sensor(FODS) which can detect objects contactlessly is presented.The static transmission properties of FODS were measured at room temperature and liquid nitrogen temperature.The test results showed a new way for measuring the displacement and vibration for superconductors.更多还原