FIELD: optical measurements. SUBSTANCE: device has optical head consisting of injection laser, photodiode, microscope objective and controlled filter. In addition, device has control unit which includes regulator of laser current and temperature, triangle-voltage generator, photocurrent-to-voltage converter, selective amplifier, and indicator. Use is also made of pulse phase detector, comparator and reversible counter. EFFECT: higher measurement results. 3 dwg
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Authors
Dates
1998-01-20—Published
1995-07-12—Filed