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[Parsed Query:ID:"WO2008099136"
, No hits:1
, QUERY:ID:"WO2008099136" STEMMING:null OFFICES:
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PATENTSCOPE
1. (WO2008099136) FLOW VELOCITY AND PRESSURE MEASUREMENT USING A VIBRATING CANTILEVER DEVICE
PCT Biblio. Data
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Pub. No.:
WO/2008/099136
International Application No.:
PCT/GB2008/000314
Publication Date:
21.08.2008
International Filing Date:
31.01.2008
Chapter 2 Demand Filed:
12.12.2007
IPC:
G01L 9/00
(2006.01),
G01Q 30/14
(2010.01),
G01Q 40/00
(2010.01),
G01Q 60/38
(2010.01)
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
Q
SCANNING-PROBE TECHNIQUES OR APPARATUS; APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING-PROBE MICROSCOPY [SPM]
30
Auxiliary means serving to assist or improve the scanning probe techniques or apparatus, e.g. display or data processing devices
08
Means for establishing or regulating a desired environmental condition within a sample chamber
12
Fluid environment
14
Liquid environment
G
PHYSICS
01
MEASURING; TESTING
Q
SCANNING-PROBE TECHNIQUES OR APPARATUS; APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING-PROBE MICROSCOPY [SPM]
40
Calibration, e.g. of probes
G
PHYSICS
01
MEASURING; TESTING
Q
SCANNING-PROBE TECHNIQUES OR APPARATUS; APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING-PROBE MICROSCOPY [SPM]
60
Particular types of SPM [Scanning-Probe Microscopy] or apparatus therefor; Essential components thereof
24
AFM [Atomic Force Microscopy] or apparatus therefor, e.g. AFM probes
38
Probes, their manufacture or their related instrumentation, e.g. holders
Applicants:
HAEHNER, Georg
[DE/GB]; (GB)
(For US Only)
.
LUBARSKY, Gennady
[IL/GB]; (GB)
(For US Only)
.
THE UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS
[GB/GB]; College Gate, North Street, St Andrews KY16 9AJ (GB)
(For All Designated States Except US)
Inventors:
HAEHNER, Georg
; (GB).
LUBARSKY, Gennady
; (GB)
Agent:
NAISMITH, Robert, Stewart
; Marks & Clerk LLP, 19 Royal Exchange Square, Glasgow G1 3AE (GB)
Priority Data:
0702965.5
15.02.2007
GB
0709880.9
23.05.2007
GB
Title
(EN)
FLOW VELOCITY AND PRESSURE MEASUREMENT USING A VIBRATING CANTILEVER DEVICE
(FR)
MESURE DE PRESSION ET DE VITESSE D'ÉCOULEMENT EN UTILISANT UN DISPOSITIF VIBRANT EN PORTE-À-FAUX
Abstract:
(EN)
Measurement apparatus having a cantilever and a fluid flow channel, the cantilever being positioned in the channel so that it projects in a direction parallel to the direction of fluid flow. In an associated method, the cantilever is positioned in a fluid flow channel such that the cantilever extends parallel with the direction of fluid flow in the channel. Fluid is caused to flow in the channel at a known velocity. The resonant frequency of the cantilever is measured at one or more velocities of fluid flow and calculating the spring constant of the cantilever using the measured resonant frequency or frequencies. If the spring constant of the cantilever is known, the measurement of resonant frequency of the cantilever is used to determine the velocity of the fluid flow.
(FR)
La présente invention concerne un appareil de mesure présentant un porte-à-faux et un canal d'écoulement de fluide, le porte-à-faux étant positionné dans le canal d'une manière telle qu'il fait saillie dans une direction parallèle à la direction d'écoulement du fluide. Dans un procédé associé, le porte-à-faux est positionné dans un canal d'écoulement de fluide d'une manière telle que le porte-à-faux s'étend parallèlement à la direction d'écoulement du fluide dans le canal. Le fluide est amené à s'écouler dans le canal à une vitesse connue. La fréquence de résonance du porte-à-faux est mesurée à une ou plusieurs vitesses d'écoulement du fluide et en calculant la constante de rappel du porte-à-faux à l'aide de la ou des fréquences de résonance mesurées. Si la constante de rappel du porte-à-faux est connue, la mesure de la fréquence de résonance du porte-à-faux est utilisée pour déterminer la vitesse de l'écoulement du fluide.
Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, 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, IS, JP, KE, KG, KM, 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, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Org. (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (EAPO) (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language:
English (EN)
Filing Language:
English (EN)