Microwave acceleration transducer

Details Microwave acceleration transducer Microwave acceleration transducer

1991-10-17

1993-11-16

Chapman, John E.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

324636, G01P 1508

Patent

active

052612783

ABSTRACT:
A microwave resonant cavity contains a dielectric resonator whose normal RF electromagnetic modes are varied by displacement of a probe. Acceleration of the cavity displaces the probe. The acceleration vector or displacement vector is determined by the variation in preselected discrete modes. The device also may be used to accurately measure pressure where the displacement of the probe is caused by flexing of a pressure responsive membrane.

REFERENCES:
patent: 3013230 (1961-12-01), Simkovich
patent: 3066267 (1962-11-01), Menhennett
patent: 3636752 (1972-01-01), Ishii
patent: 3909713 (1975-09-01), Billeter
George Von Vick, "Accelerometers", Instruments & Control Systems, vol. 38, pp. 86 and 87, Nov. 1965.
Blair et al. "Microwave Non-Contacting Accelerometer For Gravity Wave Antenna", IEEE Trans. vol. Mag 13, No. 1, Jan., 1977, pp. 350-353.
Jackson, Classical Electrodynamics, Ch. 8 pp. 235-267, 1962 Ed.
Blair, "Superconducting Accelerometer Using Niobium-On-Sapphire RF Resonator", Rev. Sci. Instr. 50(3) pp. 286-291, May, 1979.
W. C. Oelfke, et al., "Operation Of An Ultrasensitive Superconducting Accelerometer", IEEE Trans. vol. Mag 17, No. 1, Jan., 1981, pp. 853-854.

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