Weighing cell

Details Weighing cell Weighing cell

1983-08-11

1985-11-19

Miller, Jr., George H.

Weighing scales

Shock absorber, damper

Electrical or magnetic

177212, G01G 2310, G01G 700

Patent

active

045536180

ABSTRACT:
A weighing cell, in which the weight forces of the load are compensated by deformation or electromechanical forces, includes a load carrier which receives the load, a mechanical-electrical load-measuring cell, and an acceleration meter which experiences the same vertical accelerations as the weighing cell. The load cell and the acceleration meter are connected electrically with one another such that the measuring signal which is adulterated by the acceleration action is corrected correspondingly. The load cell has an output signal (A+a) comprising a weighing signal (A) superposed by a spurious signal (a) due to such acceleration. A subtractor receives the output signal (A+a). The output signal of the acceleration meter is balanced to a value (a'). In one embodiment, a multiplier receives the balanced signal (a') and from the subtractor receives a weighing signal (A) from which said spurious signal (a) has been cleaned, the multiplier producing a signal corresponding to the spurious signal (a) and feeding it to the subtractor. In another embodiment, the additive weight-force component is balanced in the signal (a') and the signal (a') is fed to the subtractor. The output of the acceleration meter is also balanced to form a second signal (a") in which the multiplicative weight-force component is compensated. This second signal (a") is fed to a second subtractor, to which a reference voltage also is fed. An analogue-digital converter receives the outputs of both subtractors for producing the cleaned output signal (A).

REFERENCES:
patent: 2767974 (1956-10-01), Ballard et al.
patent: 3556237 (1971-01-01), Allison
patent: 3670833 (1972-06-01), Tomohiko et al.
patent: 4212361 (1980-07-01), Stocker
patent: 4236590 (1980-12-01), Knothe et al.
patent: 4396080 (1983-08-01), Dee
patent: 4460054 (1984-07-01), Inkmann et al.

Affiliated with

Also associated with

Rating

Weighing cell does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Weighing cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Weighing cell will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-78979