Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1992-04-08
1994-09-13
Willis, Davis L.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
372 94, G01C 1964
Patent
active
053473612
ABSTRACT:
Angular motion sensor signals from an inertial integrating rate sensor are provided to a translation device that provides a translated output signal that is substantially the same as an input sensor signal translated in frequency by an amount equal to a reference frequency. The translated output signal is provided to a phase detector that provides a detector output signal indicative of phase differences between the translated output signal and a feedback signal. The phase detector output signal is provided to a voltage controlled oscillator which provides an oscillator output signal that is related to the phase detector output signal. The voltage controlled oscillator signal is provided to a counter that is capable of providing a count that is representative of a highly resolved measure of angular rotation. In addition, the counter is capable of providing the feedback signal that is related to the variable frequency output signal.
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Honeywell Inc.
Keesee LaCharles P.
Pajak Robert A.
Willis Davis L.
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