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:
Jun. 14, 2011
Filed:
Jan. 07, 2010
Peter Lopresti, Bixby, OK (US);
Kerry L. Sublette, Tulsa, OK (US);
Kaveh Ashenayi, Tulsa, OK (US);
Brian Bovaird, Tulsa, OK (US);
Peter LoPresti, Bixby, OK (US);
Kerry L. Sublette, Tulsa, OK (US);
Kaveh Ashenayi, Tulsa, OK (US);
Brian Bovaird, Tulsa, OK (US);
Bovaird & Co., Tulsa, OK (US);
Abstract
A method to sense pH of a fluid and an optical pH sensor. The method includes the steps of supplying at least a portion of an optical source through an input fiber. The optical source is passed through a sensor head having a sapphire window to a fluid. Optical power reflected from the fluid is collected in a plurality of output fibers in the sensor head. The reflected optical power in the output fibers in the sensor head is thereafter converted to an electrical signal which is used to determine the pH of the fluid.