title: Laser-diode interferometric heterodyne vibrometer: application to linear motor control.
abstract: 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.
authors: A
authors: A
authors: Chebbour
authors: T
authors: T
authors: Gharbi
authors: G
authors: G
authors: Tribillon