Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Patent
1996-09-05
2000-09-12
Hellner, Mark
Optics: measuring and testing
Velocity or velocity/height measuring
With light detector
7386105, G01F 1708
Patent
active
061185191
ABSTRACT:
The disclosed method of measuring the flow of a fluid with a porous particulate ceramic tracer and an optical instrument is characterized in that spherical particles having diameters in the range of 0.5 to 150 .mu.m are used as the tracer. Inasmuch as the tracer particles for flow measurement are spherical, the sectional area of scattered light to be detected by an optical sensor means is constant regardless of the orientation of particles. Furthermore, spherical particles have no surface irregularities that might cause concatenation so that individual particles are not agglomerated in tracking a fluid flow, thus contributing to improved measurement accuracy.
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Hirano Akira
Ikeda Yuji
Ipponmatsu Masamichi
Nakajima Tsuyoshi
Nishigaki Masashi
Hellner Mark
Osaka Gas Company Limited
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