Radiant energy – Invisible radiant energy responsive electric signalling – Flow metering
Patent
1979-04-10
1981-08-04
Willis, Davis L.
Radiant energy
Invisible radiant energy responsive electric signalling
Flow metering
250359, 250435, G01F 100
Patent
active
042824338
ABSTRACT:
A system for measuring the density of a fluid stream by utilization of the gamma ray absorption method, including a flow channel through which the stream is conducted, a source of gamma radiation, which is directed through the channel, and a gamma radiation detector system disposed for receiving gamma radiation after it passes through the channel, with the radiation source being composed of at least two radiation sources disposed in a common plane perpendicular to the axis of the flow channel and angularly spaced about that axis and at least one beam channel associated with each source for forming the radiation from its source into a collimated beam directed into the flow channel, the beam channels being oriented for causing collimated beams from each source to intersect one another within the flow channel.
REFERENCES:
patent: 2298942 (1942-10-01), Hicks et al.
patent: 3635082 (1972-01-01), Prellwitz et al.
Fields Carolyn E.
Kernforschungszentrum Karlsruhe GmbH
Willis Davis L.
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