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1. (WO1992010763) TEMPERATURE COMPENSATION OF TRANSDUCERS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010763 International Application No.: PCT/GB1991/002199
Publication Date: 25.06.1992 International Filing Date: 11.12.1991
Chapter 2 Demand Filed: 30.06.1992
IPC:
G01D 3/036 (2006.01) ,G01L 1/22 (2006.01) ,G01P 1/00 (2006.01)
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
3
Measuring arrangements with provision for the special purposes referred to in the subgroups of this group
028
mitigating undesired influences, e.g. temperature, pressure
036
on measuring arrangements themselves
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
1
Measuring force or stress, in general
20
by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
22
using resistance strain gauges
G PHYSICS
01
MEASURING; TESTING
P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
1
Details of instruments
Applicants:
BRITISH TECHNOLOGY GROUP LTD. [GB/GB]; 101 Newington Causeway London SE1 6BU, GB (AllExceptUS)
BINNS, John, Philip, Lincoln [GB/GB]; GB (UsOnly)
Inventors:
BINNS, John, Philip, Lincoln; GB
Agent:
GASKIN, John, Shield; Patents Department British Technology Group Ltd. 101 Newington Causeway London SE1 6BU, GB
Priority Data:
9026816.011.12.1990GB
Title (EN) TEMPERATURE COMPENSATION OF TRANSDUCERS
(FR) COMPENSATION DE TEMPERATURE DANS DES TRANSDUCTEURS
Abstract:
(EN) The invention provides a method of adjusting the temperature compensation of a temperature-sensitive transducer having a sensor element and a temperature-sensitive element which senses the temperature of the sensor element, and, combined therewith, a signal conditioning circuit which includes the temperature-sensitive element and is capable of effecting such temperature compensation, the method including the steps of making required adjustments to the signal conditioning circuit at one temperature and at another different temperature of the sensor element, characterised in that for making adjustments at the higher of the said one and the said different temperatures the sensor element is heated to that higher temperature by supplying a heating current to a heater element within the transducer and in good thermal connection with the sensor element. If the sensor element and the temperature-sensitive element which senses its temperature are provided on a semiconductor diaphragm of the transducer, the heater element may also be provided on the diaphragm.
(FR) L'invention se rapporte à un procédé de réglage de la compensation de température d'un transducteur sensible à la température, comprenant un élément détecteur et un élément sensible à la température qui détecte la température de l'élément détecteur, et, conjointement à ceux-ci, un circuit de prétraitement de signaux qui comprend l'élément sensible à la température et qui est capable d'effectuer une telle compensation de température. Le procédé consiste à effectuer des réglages requis dans le circuit de prétraitement de signaux à deux températures différentes de l'élément détecteur, et se caractérise en ce que, pour effectuer des réglages à la plus élevée desdites différentes températures, l'élément détecteur est chauffé jusqu'à atteindre cette température plus élevée par l'intermédiaire d'un courant de chauffage fourni à un élément de chauffage du transducteur et se trouvant en une bonne connexion thermique avec l'élément détecteur. Si l'élément détecteur et l'élément sensible à la température qui détecte sa température sont placés sur un diaphragme semiconducteur du transducteur, l'élément de chauffage peut aussi être placé sur le diaphragme.
Designated States: JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0561976JPH06503416