Weighing apparatus with radio interference protection

Details Weighing apparatus with radio interference protection Weighing apparatus with radio interference protection

1988-07-29

1989-08-01

Miller, Jr., George H.

Weighing scales

Computer

Electrical

177211, G01G 1300, G01G 314

Patent

active

048526738

ABSTRACT:
A region where a load cell and a weighing hopper or a scale plate are coupled to each other is surrounded by a radio wave inhibiting member. When a weighing apparatus is used in a place subjected to extraneous radio waves of a high electric field intensity, and a high-frequency voltage is induced in the weighing hopper or the scale plate which serves as an antenna, the radio wave inhibiting member prevents a high-frequency current produced by the high-frequency voltage from flowing into the load cell. Therefore, the weighing apparatus is completely protected against any weighing errors which would otherwise result from radio interference with the load cell.

REFERENCES:
patent: 4051721 (1977-10-01), Williams
patent: 4441569 (1984-04-01), Sashiki et al.

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