Doppler radar flowmeter

Details Doppler radar flowmeter Doppler radar flowmeter

1976-11-24

1978-05-23

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 177, G01S 944

Patent

active

040913856

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.

REFERENCES:
patent: 3277477 (1966-10-01), Evans
patent: 3438031 (1969-04-01), Fathauer
patent: 3550070 (1970-12-01), McLeod, Jr.
patent: 3618084 (1971-11-01), Balsiger

Affiliated with

Also associated with

Rating

Doppler radar flowmeter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Doppler radar flowmeter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Doppler radar flowmeter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-567062