[力] 振动计
定义 中文名称:振动计 英文名称:vibrometer 定义1:测定振动体的位移、速度、加速度等特征量值的仪器。 应用学科: 电力(一级学科);电测与计量(二级学科) 定义2:测量并显示物体振动值的仪表。 应
测振仪
收。 中文名称:测振仪 英文名称:vibrometer 定义:测振仪也叫测震表振动分析仪或者测震笔,是利用石英晶体和人工极化陶瓷(PZT)的压电效应设计而成。它广泛地被应用于机械制造、电力、冶车辆等领域。当石英晶体或
测振计
... vibrationaltemperature振动温度 vibrometer测振计 vibronicinteraction振动电子相互酌 ...
振动表
... vibro-impact 撞振 vibrometer 音波压力测定器;振动表 vibropendulous error 摆矩振动误差 ...
[力]振动计
A laser Doppler vibrometer (LDV) is a scientific instrument that is used to make non-contact vibration measurements of a surface. The laser beam from the LDV is directed at the surface of interest, and the vibration amplitude and frequency are extracted from the Doppler shift of the reflected laser beam frequency due to the motion of the surface. The output of an LDV is generally a continuous analog voltage that is directly proportional to the target velocity component along the direction of the laser beam.Some advantages of an LDV over similar measurement devices such as an accelerometer are that the LDV can be directed at targets that are difficult to access, or that may be too small or too hot to attach a physical transducer. Also, the LDV makes the vibration measurement without mass-loading the target, which is especially important for MEMS devices.