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1. (WO2014202533) SYSTEM FOR MEASURING PRESSURE ABLE TO DISCRIMINATE A FAILURE FROM AN OVER-PRESSURE OR UNDER-PRESSURE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2014/202533 International Application No.: PCT/EP2014/062576
Publication Date: 24.12.2014 International Filing Date: 16.06.2014
IPC:
G01L 9/00 (2006.01) ,G01L 19/06 (2006.01) ,G01L 27/00 (2006.01) ,G01D 3/08 (2006.01)
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
9
Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
19
Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
06
Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
27
Testing or calibrating of apparatus for measuring fluid pressure
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
08
with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
Applicants:
AUXITROL S.A. [FR/FR]; 5, allée Charles Pathé F-18000 Bourges, FR
Inventors:
LONGU, Guillaume; FR
Agent:
REGIMBEAU; 20, rue de Chazelles F-75847 Paris Cedex 17, FR
Priority Data:
135566817.06.2013FR
Title (EN) SYSTEM FOR MEASURING PRESSURE ABLE TO DISCRIMINATE A FAILURE FROM AN OVER-PRESSURE OR UNDER-PRESSURE
(FR) SYSTEME DE MESURE DE PRESSION DISCRIMINANT UNE PANNE D'UNE SURPRESSION OU D'UNE DEPRESSION
Abstract:
(EN) The invention relates to a system for measuring pressure, including a pressure sensor comprising: a deformable membrane on which is placed a resistive bridge able to deliver a bridge voltage representative of a deformation of the deformable membrane caused by a pressure applied to said deformable membrane; a system for limiting the deformation of the deformable membrane, able to limit the bridge voltage in the case of an over-pressure or an under-pressure on the deformable membrane; and an amplifying electronic circuit connected to the resistive bridge, able to deliver an output voltage depending on the bridge voltage; the limiting system and the electronic circuit are conjointly configured so that the output voltage makes it possible to distinguish the case of failure of the pressure sensor and/or of the electronic circuit from the case of an over-pressure or under-pressure on the deformable membrane.
(FR) L'invention concerne un système de mesure de pression comprenant : un capteur de pression comprenant : une membrane déformable sur laquelle est disposée un pont résistif apte à délivrer une tension de pont représentative d'une déformation de la membrane déformable provoquée par une pression appliquée sur ladite membrane déformable; un système de limitation des déformations de la membrane déformable apte à limiter la tension de pont en cas de surpression ou de dépression au niveau de la membrane déformable; un circuit électronique d'amplification connecté au pont résistif apte à délivrer une tension de sortie fonction de la tension de pont; le système de limitation et le circuit électronique étant conjointement configurés pour que la tension de sortie permette de distinguer un cas de défaillance du capteur de pression et/ou du circuit électronique d'un cas de surpression ou de dépression au niveau de la membrane déformable.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)