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1. (WO2014199247) A THIN FILM SENSOR
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2014/199247 International Application No.: PCT/IB2014/061281
Publication Date: 18.12.2014 International Filing Date: 08.05.2014
IPC:
G01L 9/00 (2006.01) ,G01L 9/04 (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
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
02
by making use of variations in ohmic resistance, e.g. of potentiometers
04
of resistance strain gauges
Applicants: DANFOSS A/S[DK/DK]; Nordborgvej 81 DK-6430 Nordborg, DK
Inventors: MATZEN, Steen Møllebjerg; DK
Priority Data:
20130035411.06.2013DK
Title (EN) A THIN FILM SENSOR
(FR) CAPTEUR À FILM MINCE
Abstract:
(EN) A sensor (1) comprising a membrane, an isolation layer (3) arranged on the membrane, measuring electronics comprising a thin film circuit (4), e.g. in the form of a Wheatstone bridge, deposited on the isolation layer (3), and a power supply (14) arranged to supply a quasi-DC voltage to the thin film circuit (4) is disclosed. The sensor (1) is cost effective to manufacture, due to the thin film circuit (4), and corrosion effects are avoided, without having to apply a coating or passivation layer onto the thin film circuit (4), due to the quasi-DC voltage being supplied to the thin film circuit (4).
(FR) L'invention concerne un capteur (1) comprenant une membrane, une couche isolante (3) disposée sur la membrane, une électronique de mesure comprenant un circuit à film mince (4), par exemple sous la forme d'un pont de Wheatstone, déposé sur la couche isolante (3), et une alimentation électrique (14) arrangée de manière à délivrer une tension quasi-continue au circuit à film mince (4). Grâce au circuit à film mince (4), le capteur (1) est économique à fabriquer et du fait de la tension quasi-continue qui est délivrée au circuit à film mince (4), les effets de la corrosion sont évités sans qu'il soit nécessaire d'appliquer un revêtement ou une couche de passivation sur le circuit à film mince (4).
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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: English (EN)
Filing Language: English (EN)