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Further Development of a Laser Interferometer

Doi number:10.17667/riim.2016.1-2/12.

Keywords: laser interferometer, measurement, vibrometer, analog comparator

A more than 25 year old laser interferometer has been further developed in order to handle the signals also by computers. A TTL signal converter has been built in using an analog comparator unit type LM319. A National Instruments 6341 OEM measurement card was implemented too. The modernized laser interferometer has been verified with a precise Renishaw XL-80 interferometer. A vibrometer unit has been also calibrated with the updated interferometer.


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