Results 71 to 80 of about 251,869 (196)
Flowmeter evaluation for on-orbit operations [PDF]
, 1988 Various flowmetering concepts were flow tested to characterize the relative capabilities and limitations for on-orbit fluid-transfer operations. Performance results and basic operating principles of each flowmetering concept tested are summarized, and ...
Baird, R. S.
core
Ultrasonic Cross-Correlation Flowmeters
Measurement + Control, 1993 Cross-correlation transit-time measuring instrumentation is now inherently accurate to a few ppm depending upon the sensing technology, but when ultrasonic sensors are used to measure fluid flow the accuracy is determined mainly by the fluid properties ...
J Coulthard, Y Yan
doaj +1 more source
Ultrasonic Doppler Blood Flowmeter For Extracorporeal Circulation [PDF]
, 2015 In cardiac surgeries it is frequently necessary to carry out interventions in internal heart structures, and where the blood circulation and oxygenation are made by artificial ways, out of the patient's body, in a procedure known as extracorporeal ...
Dantas Ricardo G. +3 more
core
Research on the optimization of installation conditions for ultrasonic flowmeters
管道保护Ultrasonic flowmeters serve as essential metering devices for long-distance natural gas pipelines, with a typical upstream installation length of 30D (where D is the nominal diameter).
Haohui CAI
doaj +1 more source
A miniaturized transit-time ultrasonic flowmeter based on ScAlN piezoelectric micromachined ultrasonic transducers for small-diameter applications. [PDF]
Microsyst Nanoeng, 2023 Gao Y +7 more
europepmc +1 more source
Application of Verabar flowmeter in pipeline gas flow metering of coal mine
Gong-kuang zidonghua, 2013 In view of problems of complex installation, low measurement accuracy and large permanent pressure loss of pipeline gas flowmeter of coal mine such as V-cone flowmeter, orifice flowmeter and ultrasonic flowmeter, an application of Verabar flowmeter based
TAN Fei
doaj
Energy Engineering and Control Systems, 2015 The paper presents a methodology for improving mathematical model of ultrasonic flowmeter (USM) results through the application of CFD simulation along with experimental reference data on measured consumption.
Fedir Matiko +2 more
doaj +1 more source
Direct calibration of a totally implantable pulsed Doppler ultrasonic blood flowmeter
, 1977 Page H537: H. V. Allen, M. F. Anderson, and J. D. Meindl. “Direct calibration of a totally implantable pulsed Doppler ultrasonic blood flowmeter.” Page H542: Table 1, footnote--the equation for the correlation coefficient should read (See PDF ...
M. F. Anderson +2 more
core +1 more source
CALIBRATION OF ULTRASONIC FLOWMETER FOR WI-FI NETWORK WITH THE HELP OF WEB BROWSER
Вестник Дагестанского государственного технического университета: Технические науки, 2019 Objectives. The purpose of the work was to change the method of signal transmission containing metrological information from industrial time-pulse ultrasonic gas flow meter to a compu-ting device (CD).
M. A. Velichko +2 more
doaj +1 more source
, 2007 BACKGROUND: Assessment of lung volume (FRC) and ventilation inhomogeneities with ultrasonic flowmeter and multiple breath washout (MBW) has been used to provide important information about lung disease in infants. Sub-optimal adjustment of the mainstream
Schibler, A +29 more
core +1 more source