An analytical expression for spot moving speed on the former vibrating mirror of the polygonal mirror scanning system objective is derived from geometrical optical principle.
根据几何光学原理，推导出转镜-振镜扫描系统物镜前振镜上光斑移动速度的解析表达式。
Frequency sensitivity mechanism and the sensing principle of vibrating wire sensors are developed and analyzed in theory.
分析振弦式传感器的频率敏感机理，理论上说明这类传感器的传感原理。
This paper introduces mainly the principle, measures and application of vibrating test, especially in diagnosis of bolt-pump fault.
着重介绍振动检测法的原理、方法及其在螺杆泵故障诊断中的应用。
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