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1. US4660663 - Method of calibrating a weighing apparatus within an enclosure

Office
United States of America
Application Number 06867852
Application Date 27.05.1986
Publication Number 4660663
Publication Date 28.04.1987
Grant Number 4660663
Grant Date 28.04.1987
Publication Kind A
IPC
G01G 23/14
GPHYSICS
01MEASURING; TESTING
GWEIGHING
23Auxiliary devices for weighing apparatus
14Devices for determining tare weight or for cancelling out the tare by zeroising, e.g. mechanically operated
G01G 19/52
GPHYSICS
01MEASURING; TESTING
GWEIGHING
19Weighing apparatus or methods adapted for special purposes not provided for in groups G01G11/-G01G17/138
52Weighing apparatus combined with other objects, e.g. with furniture
G01G 23/00
GPHYSICS
01MEASURING; TESTING
GWEIGHING
23Auxiliary devices for weighing apparatus
G01L 25/00
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
25Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
G01G 23/01
GPHYSICS
01MEASURING; TESTING
GWEIGHING
23Auxiliary devices for weighing apparatus
01Testing or calibrating of weighing apparatus
G01G 23/18
GPHYSICS
01MEASURING; TESTING
GWEIGHING
23Auxiliary devices for weighing apparatus
18Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
CPC
G01G 23/017
GPHYSICS
01MEASURING; TESTING
GWEIGHING
23Auxiliary devices for weighing apparatus
01Testing or calibrating of weighing apparatus
017Securing calibration against fraud
G01G 23/3707
GPHYSICS
01MEASURING; TESTING
GWEIGHING
23Auxiliary devices for weighing apparatus
18Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
36Indicating the weight by electrical means, e.g. using photoelectric cells
37involving digital counting
3707using a microprocessor
Applicants NCR Corporation
Inventors Amacher Gene L.
Mathes Gene R.
Paugstat John F.
Agents Hawk Wilbert
Sessler Albert L.
Lavin Richard W.
Title
(EN) Method of calibrating a weighing apparatus within an enclosure
Abstract
(EN)

A method for recalibrating an electronic scale mounted within an enclosure which includes a display and a plurality of switches set to a position representing the calibrated digital output of the scale when the scale is placed in a first and second weighted condition includes the steps of displaying the weight of the weighed condition of the scale, sampling the scale to generate digital signals outputted by the scale when the scale is placed in the first and second weighted condition, comparing the sampled digital signals with the digital signals represented by the setting of the switches, removing the scale from the enclosure when the sampled digital signals are within a predetermined value of the digital signals set up in the switches and displaying the new settings of the switches which corresponds to the sampled digital signals enabling the operator to set the switches accordingly.