发明名称 |
SELF CALIBRATING APPARATUS AND METHOD FOR ULTRASONIC DETERMINATION OF FLUID PROPERTIES. |
摘要 |
<p>A system and technique for determining fluid properties includes an ultrasonic transducer 30 on a first surface 42 of a solid member 40. An opposed second surface 44 of the member 40 is in contact with a fluid 25 to be monitored. A longitudinal ultrasonic pulse is delivered through the solid member, and a multiplicity of pulse echoes caused by reflections of the ultrasonic pulse between the solid-fluid interface and the transducer-solid interface are detected and processed by a processing apparatus 22. The apparatus 22 determines the decay rate of the detected echo amplitude as a function of echo number and compares this value to a calibrated decay rate to determine an acoustic property of the fluid. The speed of ultrasound in the fluid is also determined and the fluid density is determined as a function of the speed of ultrasound and the determined acoustic property. When coupled with a shear wave transducer, additional properties corresponding to the fluid viscosity, shear modulus, or shear speed are also determined. Both a fixed in place sensing system and a clamp-on sensing system are disclosed.</p> |
申请公布号 |
MXPA04008895(A) |
申请公布日期 |
2004.12.07 |
申请号 |
MX2004PA08895 |
申请日期 |
2003.01.14 |
申请人 |
BATTELLE MEMORIAL INSTITUTE |
发明人 |
MARGARET STAUTBERG GREENWOOD |
分类号 |
G01N9/00;G01N9/24;G01N11/00;G01N29/032;G01N29/22;G01N29/30;G01N29/44;G01N29/46;(IPC1-7):G01N29/02 |
主分类号 |
G01N9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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