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Class Information
Number: 73/861.25
Name: Measuring and testing > Volume or rate of flow > By measuring vibrations or acoustic energy > Reflection or scattering of acoustic waves
Description: Subject matter wherein the rate of flow is determined by acoustic waves transmitted to and reflected or scattered by the fluid.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7591787 |
Method for removing Doppler angle ambiguity |
Sep. 22, 2009 |
| 7584065 |
Doppler ultrasonic flowmeter, and processor and method thereof with quantization error correction |
Sep. 1, 2009 |
| 7562584 |
System, method and apparatus for acoustic fluid flow measurement |
Jul. 21, 2009 |
| 7546776 |
Leak detector for detecting leak of liquid injected into blood vessel using pulse signal |
Jun. 16, 2009 |
| 7523676 |
Ultrasonic flow rate measurement method and system |
Apr. 28, 2009 |
| 7509878 |
Ultrasonic cavitating apparatus and ultrasonic doppler flow measurement system |
Mar. 31, 2009 |
| 7503225 |
Ultrasonic flow sensor having a transducer array and reflective surface |
Mar. 17, 2009 |
| 7500403 |
Ultrasonic flow sensor having interlaid transmitting and receiving elements |
Mar. 10, 2009 |
| 7437947 |
Acoustic method for measuring flow velocity of fluid |
Oct. 21, 2008 |
| 7412902 |
Device for determination and/or monitoring of the volumetric and/or mass flow of a medium and having coupling element including two element portions |
Aug. 19, 2008 |
| 7395711 |
System and technique for characterizing fluids using ultrasonic diffraction grating spectroscopy |
Jul. 8, 2008 |
| 7380470 |
Ultrasonic flow meter including turbulators |
Jun. 3, 2008 |
| 7373838 |
Acoustic wave flow sensor for high-condensation applications |
May. 20, 2008 |
| 7360447 |
Flow meter having a reflector with spherical-concave surface |
Apr. 22, 2008 |
| 7363174 |
Apparatus and method for measuring a fluid flow rate profile using acoustic doppler effect |
Apr. 22, 2008 |
| 7343821 |
Device for coupling an ultrasound clamp-on measuring head on the wall of a tube |
Mar. 18, 2008 |
| 7334780 |
Device and method for manufacturing carbonated spring and carbonic water, control method for gas density applied thereto and membrane module |
Feb. 26, 2008 |
| 7318355 |
Ultrasonic flow velocity meter and ultrasonic transducer thereof |
Jan. 15, 2008 |
| 7317659 |
Measurement of air characteristics in the lower atmosphere |
Jan. 8, 2008 |
| 7287436 |
Ultrasonic measuring device including a reflection device |
Oct. 30, 2007 |
| 7287437 |
Flow meter for fluid or gas-like media |
Oct. 30, 2007 |
| 7252015 |
Ultrasonic flow meter including guide elements |
Aug. 7, 2007 |
| 7237767 |
Device and method for manufacturing carbonated spring and carbonic water, control method for gas density applied thereto and membrane module |
Jul. 3, 2007 |
| 7185547 |
Extreme temperature clamp-on ultrasonic flowmeter transducer |
Mar. 6, 2007 |
| 7178408 |
Sodar sounding of the lower atmosphere |
Feb. 20, 2007 |
| 7162930 |
Ultrasonic sensor |
Jan. 16, 2007 |
| 7140261 |
Acoustic wave flow sensor |
Nov. 28, 2006 |
| 7077012 |
Wedge and wedge unit for use in ultrasonic doppler flow meter |
Jul. 18, 2006 |
| 7032461 |
Flow sensor having a flow indicator having a plurality of light emission sections |
Apr. 25, 2006 |
| 6983208 |
Method and apparatus for combined measurements of concentration, distribution and flow velocity of suspended solids |
Jan. 3, 2006 |
| 6959601 |
Noninvasive characterization of a flowing multiphase fluid using ultrasonic interferometry |
Nov. 1, 2005 |
| 6931944 |
Measuring head for an ultrasonic flowmeter |
Aug. 23, 2005 |
| 6931945 |
Doppler ultrasonic flowmeter |
Aug. 23, 2005 |
| 6907361 |
Ultrasonic flow-measuring method |
Jun. 14, 2005 |
| 6889560 |
Noninvasive characterization of a flowing multiphase fluid using ultrasonic interferometry |
May. 10, 2005 |
| 6883386 |
Ultrasonic flow rate measurement instrument |
Apr. 26, 2005 |
| 6877375 |
System and technique for characterizing fluids using ultrasonic diffraction grating spectroscopy |
Apr. 12, 2005 |
| 6758100 |
Doppler flowmeter for multiphase flows |
Jul. 6, 2004 |
| 6714482 |
Acoustic doppler channel flow measurement system |
Mar. 30, 2004 |
| 6696843 |
Device and method for ultrasonic measurement of a fluid flow rate comprising a sigma-delta band pass analog-to-digital converter |
Feb. 24, 2004 |
| 6658710 |
Method for fabricating an annular ring transducer |
Dec. 9, 2003 |
| 6622560 |
Ultrasound imaging method and apparatus based on pulse compression technique using a spread spectrum signal |
Sep. 23, 2003 |
| 6609430 |
Low profile transducer for flow meters |
Aug. 26, 2003 |
| 6601459 |
Method of volumetric blood flow measurement |
Aug. 5, 2003 |
| 6584860 |
Flow probe insertion gauge |
Jul. 1, 2003 |
| 6587796 |
Ultrasonic flowmeter |
Jul. 1, 2003 |
| 6575043 |
Method and apparatus for characterizing flows based on attenuation of in-wall propagating wave modes |
Jun. 10, 2003 |
| 6552336 |
Non-invasive, opto-acoustic water current measurement system and method |
Apr. 22, 2003 |
| 6544181 |
Method and apparatus for measuring volume flow and area for a dynamic orifice |
Apr. 8, 2003 |
| 6408699 |
Multiple frequency Doppler flow meter |
Jun. 25, 2002 |
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