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1. (WO2018178564) SENSOR FOR MEASURING ACCELERATION FORCES ALONG THREE AXES
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/178564 International Application No.: PCT/FR2018/050746
Publication Date: 04.10.2018 International Filing Date: 27.03.2018
IPC:
G01P 15/18 (2013.01) ,G01P 15/09 (2006.01) ,G01P 21/00 (2006.01) ,G01L 5/16 (2006.01)
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 
15
Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
18
in two or more dimensions
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 
15
Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
02
by making use of inertia forces
08
with conversion into electric or magnetic values
09
by piezo-electric pick-up
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 
21
Testing or calibrating of apparatus or devices covered by the other groups of this subclass
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
5
Apparatus for, or methods of, measuring force, e.g. due to impact, work, mechanical power, or torque, adapted for special purposes
16
for measuring several components of force
Applicants: 01DB-METRAVIB[FR/FR]; 200 Chemin des Ormeaux 69760 Limonest, FR
Inventors: MAZOYER, Thierry; FR
VOUAGNER, Pascal; FR
Agent: THIBAULT, Jean-Marc; FR
SARLIN, Laure; FR
PUTET, Gilles; FR
Priority Data:
17 5255828.03.2017FR
Title (EN) SENSOR FOR MEASURING ACCELERATION FORCES ALONG THREE AXES
(FR) CAPTEUR POUR MESURER DES FORCES D'ACCÉLÉRATION SELON TROIS AXES
Abstract:
(EN) The invention concerns a triaxial acceleration sensor for simultaneously measuring acceleration forces comprising: a piezoelectric element; a series of electrodes (A, B, <b>C,</b>...) provided on one face of the piezoelectric element; a counter electrode provided on a face of the piezoelectric element opposite that provided with the electrodes. According to the invention, a processing circuit digitises the measurement signals and processes the digitised measurement signals in order to deliver axis-sensitive signals relative to the first axis (X), the second axis (Y) and the third axis (Z) from the combination of digitised measurement signals; the processing circuit determining, during a calibration phase, transfer coefficients for compensating for defects in the performance of the sensor.
(FR) L'invention concerne un capteur d'accélération triaxial pour mesurer simultanément des forces d'accélération comportant : un élément piézoélectrique; une série d'électrodes (A, B, C,...) aménagées sur une face de l'élément piézoélectrique; une contre-électrode aménagée sur une face de l'élément piézoélectrique opposée de celle pourvue des électrodes; Selon l'invention, un circuit de traitement assure la numérisation des signaux de mesure et le traitement des signaux de mesure numérisés pour délivrer des signaux sensibles selon les premier axe (X), le deuxième axe (Y) et le troisième axe (Z) à partir de la combinaison des signaux de mesure numérisés; le circuit de traitement déterminant lors d'une phase d'étalonnage des coefficients de transfert pour compenser les défauts de réalisation du capteur.
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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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, ST, 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)