HANDHELD TACHOMETER
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United States of America Patent
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Issued Date -
Mar 5, 2015
app pub date -
Sep 3, 2014
filing date -
Sep 4, 2013
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Abstract
A handheld tachometer includes a body that controls light output, and calculates a rotational velocity of an object based on incident light reflected from the object, and a reflector that is positioned at a light output terminal of the body, to adjust an angle of output light or incident light. The reflector can be adjusted by driving a step motor. The body may also have a motor control interface for a user to adjust the driving direction and degree of the step motor.
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