Measuring and testing – Volume or rate of flow – System
Patent
1976-08-19
1977-07-26
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
System
G01K 1700
Patent
active
040374700
ABSTRACT:
A hollow spherical casing is provided with an inlet opening for admitting e full intensity of the laser beam. A primary substrate formed of a bank of small tubes is mounted in the sphere to intercept the beam. The tubes partially reflect the beam and also conduct a predetermined fraction of the beam intensity into a water coolant. Beam reflections are evenly distributed over the sphere's interior surface by the tube geometry and the sphere applies the reflected beam energy to a surrounding coolant. Temperature measurements are made for both coolants. The predetermined fraction of the energy applied to the primary substrate coolant is a function of the amount of heat needed to produce a substantially instantaneous heat flux time constant that permits a substantially instantaneous measurement of beam power. Integration of the measurements derived from both the tube and the sphere coolants provides a self-calibration capability.
REFERENCES:
patent: 3464264 (1969-09-01), Ehrlich et al.
patent: 3561265 (1971-02-01), Schmidt
patent: 3783685 (1974-01-01), Zeiders et al.
patent: 3918303 (1975-11-01), Zakhidov
Mock Kenneth John
Mozic Joseph Daniel
Critchlow Paul N.
Goldstein Herbert
Sciascia Richard S.
The United States of America as represented by the Secretary of
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