Electronic weighing apparatus

Details Electronic weighing apparatus Electronic weighing apparatus

1986-08-22

1987-09-29

Miller, Jr., George H.

Weighing scales

Self-positioning

Electrical current generating or modifying

7386267, G01G 314, G01L 122

Patent

active

046963596

ABSTRACT:
An electronic weighing apparatus providing accurate weight using a low level power supply. A force responsive strain gauge having a high impedance, provides an electrical output to a sample and hold circuit. The signal from the strain gauge is conditioned by a sequencing circuit which turns the strain gauge and sample and hold circuit on and off at a rate providing a very low duty cycle to keep power consumption to a low level. Power is supplied by a photo-voltaic panel built into the electronic weighing apparatus responsive in light levels as low as 50 lux.

REFERENCES:
patent: 4531600 (1985-07-01), Langlais et al.

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