Measuring and testing – Dynamometers – Responsive to force
Patent
1986-06-17
1988-06-21
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to force
73778, G01L 110
Patent
active
047518499
ABSTRACT:
A load cell having single or multiple resonators arranged to receive a strain that is proportional to the strain in a beam to which the resonator(s) is attached. Arrangement of the multiple resonators with respect to a force-bearing beam of the cell determines whether the cell is a bending mode load cell or a shear mode load cell. Absolute and differential pressure sensors, accelerometers and weighing devices are disclosed which employ the multiple-resonators of the invention.
REFERENCES:
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patent: 4091679 (1978-05-01), Furusawa et al.
patent: 4479385 (1984-10-01), Koehler
patent: 4498344 (1985-02-01), Dinger
patent: 4594898 (1986-06-01), Kirman et al.
"An Optically Powered Vibrating Quartz Force Sensor", By: S. M. McGlade and G. R. Jones, GEC Journal of Research, vol. 2, No. 2, 1984.
"Quartz Crystal Accelermotor Insensitive to Temperature Variation", by Morio Onoe et al., 1977.
"Precision Force Transducers Using Mechanical Resonators," By: T. Ueda, F. Kohsaka and E. Ogita, Measurement, vol. 3, No. 2, Apr.-Jun. 1985.
TEW Article--Tokyo Denpa Co., Ltd., "Quartz Pressure Transducer".
Busse Donald W.
Chinn Martin D.
Kistler Walter P.
Paros Jerome M.
Wearn, Jr. Richard B.
Paroscientific, Inc.
Ruehl Charles A.
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