Chebbour A, Gharbi T, Tribillon G
Appl Opt. 2001 Nov 1;40(31):5610-4. doi: 10.1364/ao.40.005610.
We describe an interferometric heterodyne vibrometer that uses a laser diode with a triangular modulation frequency. This optical sensor is used to probe a vibrating polished surface. As an illustration of the sensor performance, the control of nonuniform velocity of a linear motor is achieved. The technique can be used over a large bandwidth between a few hertz and several tens of kilohertz. Generalization of the technique to the sensing of frequency vibrations is also demonstrated theoretically.
我们描述了一种干涉式外差振动计，它使用具有三角调制频率的激光二极管。这种光学传感器用于探测振动的抛光表面。作为传感器性能的一个例证，实现了对直线电机不均匀速度的控制。该技术可在几赫兹到几十千赫兹的大带宽范围内使用。理论上也证明了该技术对频率振动传感的推广。
