New optical vibrometer using a self-mixing laser diode is demonstrated experimentally. Peak-to-peak amplitude 20nm-90nm of a piezoelectric transducer (PZT) vibrating at 20kHz was measured with accuracy 2%-17%, and 10% average, while accuracy by simulation about 4%.
New Optical Vibrometer Using a Self-Mixing Laser Diode Modulated with a Ramp Current
2005-01-01
237721 byte
Conference paper
Electronic Resource
English
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