Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Patent
1987-08-20
1988-10-18
Myracle, Jerry W.
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
G10K 1500
Patent
active
047778237
ABSTRACT:
A system is described for use with acoustic levitators, which can prevent rotation of a levitated object or control its orientation and/or rotation. The acoustic field is made nonsymmetrical about the axis of the levitator, to produce an orienting torque that resists sample rotation. In one system, a perturbating reflector is located on one side of the axis of the levitator, at a location near the levitated object. In another system, the main reflector surface towards which incoming acoustic waves are directed is nonsymmetrically curved about the axis of the levitator. The levitated object can be reoriented or rotated in a controlled manner by repositioning the reflector producing the nonsymmetry.
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R. R. Whymark, "Acoustic Field Positioning for Containerless Processing," Ultrasonics, Nov., 1975, pp. 251-261.
Barmatz Martin B.
Gaspar Mark S.
Trinh Eugene H.
Bell Robert P.
Jones Thomas H.
Manning John R.
McCaul Paul F.
Myracle Jerry W.
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