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1. (WO2017181939) METHOD OF CALIBRATING ULTRASOUND TRANSMISSION TIME FOR ULTRASOUND FLOWMETER, SYSTEM, AND FLOWMETER
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Pub. No.: WO/2017/181939 International Application No.: PCT/CN2017/080919
Publication Date: 26.10.2017 International Filing Date: 18.04.2017
IPC:
G01F 1/66 (2006.01) ,G01F 25/00 (2006.01)
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
1
Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
66
by measuring frequency, phase shift, or propagation time of electromagnetic or other waves, e.g. ultrasonic flowmeters
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
25
Testing or calibrating of apparatus for measuring volume, volume flow, or liquid level, or for metering by volume
Applicants:
成都千嘉科技有限公司 CHENGDU QIANJIA TECHNOLOGY CO., LTD [CN/CN]; 中国四川省成都市 双流空港1路1段536号 No. 536, Shuangliu Airport Road Chengdu, Sichuan 610000, CN
Inventors:
刘勋 LIU, Xun; CN
Agent:
四川力久律师事务所 SICHUAN LIJIU LAW FIRM; 中国四川省成都市 武侯区长华路19号万科汇智中心1115号 No. 1115 Vanke Heart of Wisdom No 19, Changhua road, Wuhou District Chengdu, Sichuan 610041, CN
Priority Data:
201610246863.620.04.2016CN
Title (EN) METHOD OF CALIBRATING ULTRASOUND TRANSMISSION TIME FOR ULTRASOUND FLOWMETER, SYSTEM, AND FLOWMETER
(FR) PROCÉDÉ D'ÉTALONNAGE DU TEMPS DE TRANSMISSION D'ULTRASONS POUR UN DÉBITMÈTRE À ULTRASONS, SYSTÈME ET DÉBITMÈTRE
(ZH) 超声波流量计的超声发送时间校正方法、系统及流量计
Abstract:
(EN) A method of calibrating ultrasound transmission time for an ultrasound flowmeter, a system, and a flowmeter. The method comprises: determining, by gradually increasing or decreasing a number of ultrasonic pulses in each transmission, that which of the ultrasonic pulses in each transmission is the first ultrasonic pulse received in an actual measurement, thereby determining an actual transmission time of a valid ultrasonic pulse, preventing a measurement error as a result of taking a transmission time of the first ultrasonic pulse transmitted by an ultrasonic transducer as a start time of a measurement as disclosed in the prior art.
(FR) L'invention concerne un procédé d'étalonnage du temps de transmission d'ultrasons pour un débitmètre à ultrasons, un système et un débitmètre. Le procédé consiste à : déterminer, en augmentant ou en diminuant progressivement un nombre d'impulsions ultrasonores dans chaque transmission, celle des impulsions ultrasonores dans chaque transmission qui est la première impulsion ultrasonore reçue dans une mesure réelle, ce qui permet de déterminer un temps de transmission réel d'une impulsion ultrasonore valide, et d'éviter une erreur de mesure due à la prise d'un temps de transmission de la première impulsion ultrasonore transmise par un transducteur ultrasonore en tant que temps de départ d'une mesure comme décrit dans l'état de la technique.
(ZH) 一种超声波流量计的超声发送时间校正方法、系统及流量计,通过依次增加或减少每次发射的超声波脉冲个数,确定在实际测量时第一个可以被接收到的超声波脉冲是超声波换能器发送的第几个超声波脉冲,从而确定有效的超声波脉冲的实际发送时间,从而避免了现有技术中,由于把超声波换能器发送第一个超声波脉冲发送时间作为测量的起始时间而造成的测量误差。
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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, 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: Chinese (ZH)
Filing Language: Chinese (ZH)