Optical measuring device
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United States of America Patent
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Mar 7, 2017
Grant Date -
Nov 5, 2015
app pub date -
Dec 11, 2013
filing date -
Dec 21, 2012
priority date (Note) -
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Abstract
A device for measuring a periodic signal is disclosed. The device includes a light source for generating an optical input signal directed at an object being measured from an electrical input signal generated by a driver device on the basis of a first clock pulse, an optical receiver for detecting and converting the signal received, a central control and measuring device is designed to generate the first clock pulse for the driver device and to receive and process the electrical measuring signal, and a voltage-supply apparatus for supplying the driver device. The central control and measuring device are preferably designed to generate a second clock pulse for the voltage-supply apparatus and to filter the electrical measuring signal on the basis of the first and/or second clock pulse. The frequency of the second clock pulse is an even multiple of the frequency of the first clock pulse.
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