Conclusions
An experimental model of an optical heterodyne arrangement has been developed and fabricated for the measurement of mechanical vibrations having a complicated form. The metrological characteristics of the arrangement were determined experimentally. The relative measuring error for the velocity of harmonic vibrations over the range from 0.2 to 20 mm/sec, referred to the upper limit, is 1.2%. The arrangement can reproduce an analog of mechanical vibrations having a complicated form with a dynamic error of no more than 4%.
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Literature cited
Yu. F. Zastrogin, Izmeritel'. Tekh., No. 9 (1972).
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Additional information
Translated from Izmeritel'naya Tekhnika, No. 9, pp. 39–41, September, 1973.
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Barash, V.Y., Zastrogin, Y.F. Optical heterodyne arrangement with a two-frequency radiation source for mechanical vibration measurements. Meas Tech 16, 1337–1339 (1973). https://doi.org/10.1007/BF00813041
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DOI: https://doi.org/10.1007/BF00813041