The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 1985
Filed:
Oct. 13, 1983
Katsuji Hironaga, Kawanishi, JP;
Tadaki Nishiura, Takatsuki, JP;
Nihon Kagaku Kogyo Co., Ltd., Osaka, JP;
Abstract
An apparatus for measuring liquid-gas two-phase flow comprises a light source, an optical fiber with the end face disposed perpendicularly to the flow direction of the two-phase flow, and a photo detector which detects the reflected light. When a bubble approaches toward the end face of the fiber and the center thereof pass through it, the light reflected by the bubble is shifted by the Doppler effect and the light intensity reflected by the end face of the fiber changes corresponding to the difference of the refraction indices of the liquid and gas, so that the photo detector generates electric signal from light beat of these reflected light beams. And bubble velocity and its diameter can be simultaneously measured by high and low frequency components of this signal, respectively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile