Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Patent
1986-07-10
1987-10-13
Chapman, John
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
324160, G01P 900
Patent
active
046990054
ABSTRACT:
An apparatus for measuring angular velocity is provided with a microwave oscillator, closed-loop waveguide and a microwave-detector. The microwave oscillator generates microwaves and the waveguide which may employ a magic tee as a part thereof separates the microwaves to propagate one and the other of separated microwaves clockwise and counterclockwise therethrough, respectively. The microwave detector mixes and microwave-detects one and the other of the separated microwaves propagated through said waveguide. When the waveguide is in rotary motion, frequencies or phases between the separated microwaves differ from each other in dependence upon the angular velocity and the microwave detector produces an output signal corresponding to the difference in frequencies or in phases between the separated microwaves. The angular velocity of the waveguide is measured by the use of output alternating signal component corresponding to the frequency difference between the separated microwaves or by the use of output direct current signal component corresponding to the phase difference between the separated microwaves.
REFERENCES:
patent: 3395270 (1968-07-01), Speller
patent: 3861220 (1975-01-01), Felsenthal
patent: 4384409 (1983-05-01), Lao
patent: 4429573 (1984-02-01), Walker
Frost: "Rotation Sensing Through EM-Saw Transduction", Journal of App. Physics-vol. 48-Jan. 77-pp, 52-58.
Chapman John
Nippondenso Co. Ltd.
LandOfFree
Apparatus for measuring angular velocity does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for measuring angular velocity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for measuring angular velocity will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-404725