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:
Oct. 29, 2019
Filed:
Oct. 24, 2018
International Business Machines Corporation, Armonk, NY (US);
Jonathan Fry, Fishkill, NY (US);
Daniel Piper, Vancouver, WA (US);
Jang Sim, Hopewell Junction, NY (US);
Yongchun Xin, Poughkeepsie, NY (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A micro electrical mechanical system (MEMS) optical sensor including a fluid channel having an input portion, an output portion and a curved portion positioned between the input portion and the output portion; a light source impinging on a first boundary of the curved portion and exiting from a second boundary of the curved channel; a photodetector to record a light path of refraction of the light source exiting from the second boundary of the curved portion; a processor to compute the refractive index of a fluid in the curved portion using the light path of refraction of the light source and compare the computed refractive index to a known refractive index for the fluid to determine a difference between the computed refractive index and the known refractive index.