A cantilever is used to block the light reflected into optical fiber, and the vibration signal can be measured through the intensity modulation.
使用悬臂梁来遮挡反射回光纤的光，用光强度调制来实现振动信号的测量。
In the testing of a certain antiaircraft artillery servo system, the signals needed to be measured are time-invariant signal and time-varying signal.
在某型高炮随动系统的测试中，待测信号有非时变信号和时变信号两种。
Further, the electromagnetic sensor may be operable to produce a signal representing the measured response by the construction material to the electromagnetic field.
此外，电磁传感器可用于产生表示测得的建筑材料对电磁场的响应的信号。
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