Measuring and testing – Dynamometers – Responsive to force
Patent
1985-01-25
1987-03-17
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to force
177210C, 361283, G01L 114
Patent
active
046497595
ABSTRACT:
Two pairs of parallel plate electrodes forming respectively a sensor capacitor and a reference capacitor are mounted on a parallelogram structure designed to deform under load in such a way that the gap width of the sensor capacitor changes as a function of load while the gap width of the reference capacitor is unaffected by the load. The capacitance of the reference capacitor is, however, similarly affected by temperature, humidity and other physical properties which may affect the dielectric constant of the medium, and is available for use in a ratio circuit to compensate for spurious changes in the sensor capacitance.
REFERENCES:
patent: 3858097 (1974-12-01), Polye
patent: 4168518 (1979-09-01), Lee
patent: 4237989 (1980-12-01), Lewis
patent: 4308929 (1982-01-01), Estavoyer
patent: 4434451 (1984-02-01), Delatorre
patent: 4572006 (1981-02-01), Wolfendale
Ruehl Charles A.
Setra Systems, Inc.
LandOfFree
Force transducer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Force transducer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Force transducer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1780490