Measuring and testing – Dynamometers – Responsive to force
Patent
1987-03-16
1990-02-13
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to force
177210C, 177229, G01L 114, G01G 308
Patent
active
048996009
ABSTRACT:
A compact force transducer has at least one flexible beam mounted at one or both its ends to a force summing member or members. The force-to-be-measured is applied to the force summing member along a first axis generally transverse to the beams to deform the beam elastically, without overstressing, through a displacement d. A sensor member carries a conductive surface and is coupled to the beam member. In a parallelogram form, there are a parallel pair of beam members extending between two force summing members and a sensor member is secured to each beam member at or near its point of inflection. One sensor member includes multiple arms that sandwich the other sensor member to produce a linear, push-pull mode of operation. In a low cost cantilevered beam form, the sensor is coupled to the beam at the force summing member in a parallel, spaced relationship. In a hybrid push-pull form, the transducer uses a two beam parallelogram construction with cantilevered sensors (1) coupled rigidly to each beam adjacent one force summing member with a hinge coupling between the beam and this one force summing member, and (2) extending generally in a parallel spaced relationship with respect to an associated one of the beams.
REFERENCES:
patent: 3371526 (1968-03-01), Fathauer
patent: 3443653 (1969-05-01), Marshall
patent: 3590933 (1971-07-01), Forman
patent: 3602866 (1971-08-01), Saxl
patent: 3858097 (1974-12-01), Polye
patent: 3986571 (1976-10-01), Strobel et al.
patent: 4020686 (1977-05-01), Brendel
patent: 4022288 (1977-05-01), Canevari
patent: 4043415 (1977-08-01), Luchinger
patent: 4062416 (1977-12-01), Berg et al.
patent: 4062417 (1977-12-01), Kunz
patent: 4065962 (1978-01-01), Shoberg
patent: 4072202 (1978-02-01), Storace
patent: 4143727 (1979-03-01), Jacobson
patent: 4153124 (1979-05-01), Knothe et al.
patent: 4153126 (1979-05-01), Knothe et al.
patent: 4168518 (1979-09-01), Lee
patent: 4170270 (1979-10-01), Sette et al.
patent: 4184557 (1980-01-01), Kunz
patent: 4237989 (1980-12-01), Lewis
patent: 4300648 (1981-11-01), Gallo et al.
patent: 4308929 (1982-01-01), Estavoyer
patent: 4343196 (1982-08-01), Wirth et al.
patent: 4344496 (1982-08-01), Langlais et al.
patent: 4434451 (1984-02-01), Delatorre
Foldvari, Tibor L. et al., "Capacitive Transducers", Instruments and Control Systems, (Nov. 1964) pp. 77-85.
Ruehl Charles A.
Setra Systems, Inc.
LandOfFree
Compact force transducer with mechanical motion amplification does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compact force transducer with mechanical motion amplification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact force transducer with mechanical motion amplification will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1160005