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1. EP0273924 - METHOD OF CALIBRATING AN ELECTRONIC SCALE

Office
European Patent Office
Application Number 87903638
Application Date 12.05.1987
Publication Number 0273924
Publication Date 13.07.1988
Publication Kind B1
IPC
G01G 23/01
GPHYSICS
01MEASURING; TESTING
GWEIGHING
23Auxiliary devices for weighing apparatus
01Testing or calibrating of weighing apparatus
G01G 23/01
GPHYSICS
01MEASURING; TESTING
GWEIGHING
23Auxiliary devices for weighing apparatus
01Testing or calibrating of weighing apparatus
G01G 23/16
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
16electrically or magnetically operated
G01G 23/16
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
16electrically or magnetically operated
G01G 23/37
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
CPC
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
G01G 23/01
GPHYSICS
01MEASURING; TESTING
GWEIGHING
23Auxiliary devices for weighing apparatus
01Testing or calibrating of weighing apparatus
G01G 23/16
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
16electrically or magnetically operated
Applicants NCR CORPORATION
Inventors AMACHER, GENE, L.
MATHES, GENE, RAYMOND
PAUGSTAT, JOHN, FREDERICK
Title
(DE) VERFAHREN ZUM EICHEN EINER ELEKTRONISCHEN WAAGE.
(EN) METHOD OF CALIBRATING AN ELECTRONIC SCALE
(FR) PROCEDE D'ETALONNAGE D'UNE ECHELLE ELECTRONIQUE.
Abstract
(EN) Simple and rapid method of calibrating an electronic scale (22) arranged to output an n-bit binary signal as a representation of an item being weighed. The method includes the steps of comparing the bits of a first n-bit binary signal representative of a first weighted condition of the scale (22) with the settings of a first set of n manually settable switches (66a, 66b), and comparing the bits of a second n-bit binary signal representative of a second weighted condition of the scale (22) with the settings of a second set of n manually settable switches (66c, 66d). The settings of the switches (66a, 66b, 66c, 66d) are changed, as necessary, in accordance with instructions displayed on display means (32) so as to bring the settings into conformity with the bits of said first and second binary signals. The invention is also concerned with methods of recalibrating and zero balancing the scale (22).
(FR) Procédé simple et rapide d'étalonnage d'une échelle électronique (22) conçue pour sortir un signal binaire à n bits en tant que réprésentation d'un article en cours de pesage. Le procédé comprend les étapes de comparaison des bits d'un premier signal binaire à n bits représentatif d'un premier état pondéré de l'échelle (22) avec les réglages d'un premier ensemble de n commutateurs manuellement réglables (66a, 66b), et de comparaison des bits d'un second signal binaire à n bits représentatif d'un second état pondéré de l'échelle (22) avec les réglages d'un second ensemble de n commutateurs manuellement réglables (66c, 66d). Les réglages des commutateurs (66a, 66b, 66c, 66d) sont modifiés selon les besoins en fonction des instructions affichées sur de moyens d'affichage (32) de manière à rendre les réglages conformes aux bits des premier et second signaux binaires. L'invention concerne également des procédés de réetalonnage et d'équilibrage à zéro de l'échelle (22).
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