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1. WO2002037066 - METHOD OF OPERATING A DEVICE EXPOSED TO AMBIENT CONDITIONS AND INSTALLATION INCLUDING SUCH A DEVICE

Publication Number WO/2002/037066
Publication Date 10.05.2002
International Application No. PCT/IB2001/002071
International Filing Date 06.11.2001
Chapter 2 Demand Filed 28.05.2002
IPC
G01G 3/18 2006.01
GPHYSICS
01MEASURING; TESTING
GWEIGHING
3Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
18Temperature-compensating arrangements
G01G 19/02 2006.01
GPHYSICS
01MEASURING; TESTING
GWEIGHING
19Weighing apparatus or methods adapted for special purposes not provided for in groups G01G11/-G01G17/138
02for weighing wheeled or rolling bodies, e.g. vehicles
G01G 23/48 2006.01
GPHYSICS
01MEASURING; TESTING
GWEIGHING
23Auxiliary devices for weighing apparatus
48Temperature-compensating arrangements
CPC
G01G 19/021
GPHYSICS
01MEASURING; TESTING
GWEIGHING
19Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
02for weighing wheeled or rolling bodies, e.g. vehicles
021having electrical weight-sensitive devices
G01G 23/48
GPHYSICS
01MEASURING; TESTING
GWEIGHING
23Auxiliary devices for weighing apparatus
48Temperature-compensating arrangements
G01G 3/18
GPHYSICS
01MEASURING; TESTING
GWEIGHING
3Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
18Temperature-compensating arrangements
Applicants
  • LECHTMAN, David [ZA]/[ZA]
Inventors
  • LECHTMAN, David
Agents
  • FERREIRA, Stephanus, Cornelius
Priority Data
2000/632606.11.2000ZA
2001/049918.01.2001ZA
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF OPERATING A DEVICE EXPOSED TO AMBIENT CONDITIONS AND INSTALLATION INCLUDING SUCH A DEVICE
(FR) PROCEDE D'EXPLOITATION D'UN DISPOSITIF SOUMIS AUX CONDITIONS AMBIANTES, ET INSTALLATION LE COMPRENANT
Abstract
(EN)
The invention relates to dealing with an effect of ambient conditions on operation of an installation in response to a physical action. By way of example, when the installation is a measuring installation, master circuitry (12) is used in measuring a physical action. Control circuitry (32) matching the master circuitry is isolated from the physical action. The master and control circuitry, in close physical relationship, are similarly subjected to ambient conditions. An actual output and an expected output of the control circuitry are compared and a discrepancy is detected. The output of the master circuitry (12) is modified in accordance with said discrepancy, for example to compensate for the effect of the ambient conditions, or to cancel recordation of an erroneous measurement.
(FR)
L'invention porte sur l'incidence des conditions ambiantes sur le fonctionnement d'une installation en réponse à une intervention de nature physique. Par exemple, lorsque l'installation est une installation de mesure, le circuit principal (12) sert à mesurer une intervention de nature physique. Le circuit de commande (32), qui est adapté au circuit principal (12) est isolé des interventions de nature physique. Les circuits principal et de commande sont soumis aux mêmes conditions ambiantes. On compare les mesures effectives aux mesures prévues pour détecter les écarts en fonction desquels on modifie les signaux de sortie du circuit principal (12), par exemple pour compenser les effets des conditions ambiantes ou annuler l'enregistrement de mesures erronées.
Also published as
ZA200304451
Latest bibliographic data on file with the International Bureau