Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Patent
1991-02-25
1993-04-20
Williams, Hezron E.
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
G01P 1304
Patent
active
052032094
ABSTRACT:
A system is described for determining motion of an object that is acoustically positioned in a standing wave field in a chamber. Sonic energy in the chamber is sensed, and variation in the amplitude of the sonic energy is detected, which is caused by linear motion, rotational motion, or drop shape oscillation of the object. Apparatus for detecting object motion can include a microphone (24) coupled to the chamber and a low pass filter (40) connected to the output of the microphone, which passes only frequencies below the frequency of sound produced by a transducer (18) that maintains the acoustic standing wave field. Knowledge about object motion can be useful by itself, can be useful to determine surface tension, viscosity, and other information about the object, and can be useful to determine the pressure and other characteristics of the acoustic field.
REFERENCES:
patent: 2999389 (1961-09-01), Granquist
patent: 3164022 (1965-01-01), Ensley
patent: 3905235 (1975-09-01), Shaw
patent: 4420977 (1983-12-01), Elleman et al.
patent: 4573356 (1986-03-01), Barmatz et al.
patent: 4672848 (1987-06-01), Gohin et al.
patent: 4689993 (1987-09-01), Slettemoen
patent: 4716764 (1988-01-01), Felix
patent: 4773266 (1988-09-01), Barmatz et al.
patent: 4777823 (1988-10-01), Barmatz et al.
patent: 4800756 (1989-01-01), Barmatz et al.
patent: 4903531 (1990-02-01), LeBlond et al.
patent: 4964303 (1990-10-01), Barmatz et al.
Journal of Acoustic Soc. Am. Aug. '82, "Resonance frequency shift . . " by Leung, Lee, Jacobi, and Wang.
Barmatz Martin B.
Watkins John L.
Finley Rose M.
Jones Thomas H.
Kusmiss John H.
Miller Guy M.
The United States of America as represented by the Administrator
LandOfFree
Motion measurement of acoustically levitated object does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motion measurement of acoustically levitated object, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motion measurement of acoustically levitated object will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1518139