Measuring and testing – Liquid level or depth gauge
Patent
1981-05-26
1984-01-17
Swisher, S. Clement
Measuring and testing
Liquid level or depth gauge
343 77, G01F 2328
Patent
active
044257937
ABSTRACT:
To measure the height of the surface of a fluent material, such as coal, in a bunker or container, pulsed radiation from a microwave source is beamed down on to said surface, and the return radiation reflected from the surface is processed to detect pulses in the waveform with time-varying amplitudes, and therefore denoting returns from the fluent material, and to reject fixed shape pulses denoting returns from the fixed structure of the bunker. To discriminate between returns of time-varying amplitude (i) from the fluent material surface and (ii) from material flowing in from an in-feed, the higher frequency components, denoting the material flowing in, are filtered out.
REFERENCES:
patent: 3184969 (1965-05-01), Bolton
patent: 3812422 (1974-05-01), De Carolis
patent: 3893109 (1975-07-01), Chiron et al.
patent: 3995212 (1976-11-01), Ross
S. S. Stuchley et al., Surface-Level Microwave Monitor, in Design Electronics Monographs: Microwaves in Industry, pp. 15-34, London England (1971).
Thompson Lionel R. F.
Turton David
Hawker Siddeley Dynamics Engineering Limited
Rose Howard L.
Swisher S. Clement
LandOfFree
Level gauging systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Level gauging systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Level gauging systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-695795