Weighing scales – Self-positioning – Repositioning in response to deflection under load
Patent
1982-12-17
1984-05-29
Goldberg, E. A.
Weighing scales
Self-positioning
Repositioning in response to deflection under load
177210EM, 324 99D, G01G 138, G01G 314, G01R 1706
Patent
active
044509243
ABSTRACT:
It is known in high-resolution electronic weighing scales based on the principle of electromagnetic force compensation that the load-dependent development of heat in a coil and a precision resistor can be compensated by sending an additional alternating current through the coil and the precision resistor which is complementarily regulated in its amplitude. In order to regulate the amplitude of this alternating current, the invention proposes a simplified circuit which comprises a highly temperature-dependent resistor, the resistance value of which is set at a fixed theoretical value.
REFERENCES:
patent: 3048778 (1962-08-01), Rumpel
patent: 4099587 (1978-07-01), Kaufmann
patent: 4300647 (1981-11-01), Knothe et al.
Behrend Lothar
Knothe Eric
Melcher Franz-Josef
Ober Jurgen
Foster Patrick W.
Goldberg E. A.
Sartorius GmbH
Schellin Eric P.
LandOfFree
Electronic weighing scale does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electronic weighing scale, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic weighing scale will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1392851