Hall effect weight transducer

Details Hall effect weight transducer Hall effect weight transducer

1986-12-23

1988-04-19

Miller, Jr., George H.

Weighing scales

Self-positioning

Electrical current generating or modifying

177210FP, 177DIG5, G01G 314

Patent

active

047383259

ABSTRACT:
A weight transducer including an extruded housing having upper and lower inner surfaces. Affixed to the upper inner surface is a hall effect magnetic field sensor, and affixed to the lower inner surface is a pair of magnetic field generating magnets. The magnets are arranged with magnetic poles of opposite polarity located adjacent one another. The hall effect sensor senses changes in the magnetic field generated by the pair of magnets due to relative movement between the upper and lower inner surfaces with application of weight to the housing. The voltage output of the hall effect sensor is converted to a signal having a frequency which varies in proportion to the weight applied to the housing. The hall effect weight transducer provides a very rugged and relatively inexpensive yet highly accurate weight transducer.

REFERENCES:
patent: 3060370 (1962-10-01), Varterasian
patent: 3164013 (1965-01-01), Schmahl et al.
patent: 3411347 (1968-11-01), Wirth et al.
patent: 3423999 (1969-01-01), Wirth et al.
patent: 3621713 (1971-11-01), Wirth et al.
patent: 3724573 (1973-04-01), Saner
patent: 3805605 (1974-04-01), Saner
patent: 4336854 (1982-06-01), Jensen
patent: 4532810 (1985-08-01), Prinz et al.

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