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

Title: Doppler radar flowmeter

Abstract

A Doppler radar flowmeter comprises a transceiver which produces an audio frequency output related to the Doppler shift in frequency between radio waves backscattered from particulate matter carried in a fluid and the radiated radio waves. A variable gain amplifier and low pass filter are provided for amplifying and filtering the transceiver output. A frequency counter having a variable triggering level is also provided to determine the magnitude of the Doppler shift. A calibration method is disclosed wherein the amplifier gain and frequency counter trigger level are adjusted to achieve plateaus in the output of the frequency counter and thereby allow calibration without the necessity of being able to visually observe the flow.

Inventors:
 [1];  [2]
  1. (Uniontown, PA)
  2. (Adamsburg, PA)
Publication Date:
OSTI Identifier:
863096
Patent Number(s):
US 4091385
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
OCR2378
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
doppler; radar; flowmeter; comprises; transceiver; produces; audio; frequency; output; related; shift; radio; waves; backscattered; particulate; matter; carried; fluid; radiated; variable; amplifier; pass; filter; provided; amplifying; filtering; counter; triggering; level; determine; magnitude; calibration; method; disclosed; trigger; adjusted; achieve; plateaus; allow; necessity; visually; observe; flow; frequency output; particulate matter; pass filter; radio waves; doppler shift; calibration method; audio frequency; radar flowmeter; allow calibration; doppler radar; /342/

Citation Formats

Petlevich, Walter J., and Sverdrup, Edward F.. Doppler radar flowmeter. United States: N. p., 1978. Web.
Petlevich, Walter J., & Sverdrup, Edward F.. Doppler radar flowmeter. United States.
Petlevich, Walter J., and Sverdrup, Edward F.. Sun . "Doppler radar flowmeter". United States. doi:. https://www.osti.gov/servlets/purl/863096.
@article{osti_863096,
title = {Doppler radar flowmeter},
author = {Petlevich, Walter J. and Sverdrup, Edward F.},
abstractNote = {A Doppler radar flowmeter comprises a transceiver which produces an audio frequency output related to the Doppler shift in frequency between radio waves backscattered from particulate matter carried in a fluid and the radiated radio waves. A variable gain amplifier and low pass filter are provided for amplifying and filtering the transceiver output. A frequency counter having a variable triggering level is also provided to determine the magnitude of the Doppler shift. A calibration method is disclosed wherein the amplifier gain and frequency counter trigger level are adjusted to achieve plateaus in the output of the frequency counter and thereby allow calibration without the necessity of being able to visually observe the flow.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1978},
month = {Sun Jan 01 00:00:00 EST 1978}
}

Patent:

Save / Share: