Automatic zero correction apparatus for weighing balances

Details Automatic zero correction apparatus for weighing balances Automatic zero correction apparatus for weighing balances

1980-10-09

1982-02-23

Miller, Jr., George H.

Weighing scales

Computer

Electrical

177 50, 177185, 177DIG3, G01G 1904, G01G 1952, G01G 2310

Patent

active

043165184

ABSTRACT:
To achieve an automatic stabilization of the zero point in a scale having a digital display, any difference between the load proportional signal and the stored reference signal (for example, the tare value) is compared to a threshold value. Differences which are less than the threshold value are halved in a divider. The halved difference signal is then used when the next subsequent one of the load proportional signal is compared to the reference signal, preferably by algebraic addition of the halved difference signal to the reference signal.

REFERENCES:
patent: 3665169 (1972-05-01), Henderson et al.
patent: 3786884 (1974-01-01), Allenspach
patent: 3797595 (1974-03-01), Yin et al.
patent: 3860802 (1975-01-01), Knothe et al.
patent: 3986012 (1976-10-01), Loshbough et al.
patent: 4044846 (1977-08-01), Matilainen
patent: 4137979 (1979-02-01), Itani

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