skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Microwave fluid flow meter

Abstract

A microwave fluid flow meter is described utilizing two spaced microwave sensors positioned along a fluid flow path. Each sensor includes a microwave cavity having a frequency of resonance dependent upon the static pressure of the fluid at the sensor locations. The resonant response of each cavity with respect to a variation in pressure of the monitored fluid is represented by a corresponding electrical output which can be calibrated into a direct pressure reading. The pressure drop between sensor locations is then correlated as a measure of fluid velocity. In the preferred embodiment the individual sensor cavities are strategically positioned outside the path of fluid flow and are designed to resonate in two distinct frequency modes yielding a measure of temperature as well as pressure. The temperature response can then be used in correcting for pressure responses of the microwave cavity encountered due to temperature fluctuations.

Inventors:
 [1];  [1];  [2]
  1. Richland, WA
  2. Lynchburg, VA
Issue Date:
Research Org.:
Hanford Engineering Development Lab., Richland, WA (United States)
OSTI Identifier:
862465
Patent Number(s):
3939406
Assignee:
Westinghouse Electric Corporation (Pittsburgh, PA)
Patent Classifications (CPCs):
G - PHYSICS G03 - PHOTOGRAPHY G03B - APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM
G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
DOE Contract Number:  
AT(45-1-)2170
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
microwave; fluid; flow; meter; described; utilizing; spaced; sensors; positioned; path; sensor; cavity; frequency; resonance; dependent; static; pressure; locations; resonant; response; respect; variation; monitored; represented; corresponding; electrical; output; calibrated; direct; reading; drop; correlated; measure; velocity; preferred; embodiment; individual; cavities; strategically; outside; designed; resonate; distinct; modes; yielding; temperature; correcting; responses; encountered; due; fluctuations; resonant response; fluid velocity; flow meter; pressure drop; preferred embodiment; fluid flow; flow path; microwave cavity; electrical output; static pressure; positioned outside; sensors positioned; temperature fluctuations; corresponding electrical; strategically positioned; microwave fluid; wave sensor; individual sensor; wave cavity; wave sensors; pressure reading; described utilizing; /324/73/

Citation Formats

Billeter, Thomas R, Philipp, Lee D, and Schemmel, Richard R. Microwave fluid flow meter. United States: N. p., 1976. Web.
Billeter, Thomas R, Philipp, Lee D, & Schemmel, Richard R. Microwave fluid flow meter. United States.
Billeter, Thomas R, Philipp, Lee D, and Schemmel, Richard R. Thu . "Microwave fluid flow meter". United States. https://www.osti.gov/servlets/purl/862465.
@article{osti_862465,
title = {Microwave fluid flow meter},
author = {Billeter, Thomas R and Philipp, Lee D and Schemmel, Richard R},
abstractNote = {A microwave fluid flow meter is described utilizing two spaced microwave sensors positioned along a fluid flow path. Each sensor includes a microwave cavity having a frequency of resonance dependent upon the static pressure of the fluid at the sensor locations. The resonant response of each cavity with respect to a variation in pressure of the monitored fluid is represented by a corresponding electrical output which can be calibrated into a direct pressure reading. The pressure drop between sensor locations is then correlated as a measure of fluid velocity. In the preferred embodiment the individual sensor cavities are strategically positioned outside the path of fluid flow and are designed to resonate in two distinct frequency modes yielding a measure of temperature as well as pressure. The temperature response can then be used in correcting for pressure responses of the microwave cavity encountered due to temperature fluctuations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {1}
}

Patent:

Save / Share: