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:
Feb. 19, 2019
Filed:
Dec. 17, 2014
Arizona Board of Regents on Behalf of Arizona State University, Scottsdale, AZ (US);
Erica Forzani, Mesa, AZ (US);
Nongjian Tao, Fountain Hills, AZ (US);
Di Zhao, Tempe, AZ (US);
Francis Tsow, Tempe, AZ (US);
ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY, Scottsdale, AZ (US);
Abstract
A COdetection chamber includes a gas inlet and a gas outlet. A COsensor is housed in the COdetection chamber, where the sensor includes a reversible and selective pH-sensitive nanocomposite sensor element for COdetection, and a hydrophobic surface. A flowmeter, a thermistor and a humidity sensor operate to read flow and compensate for humidity conditions. A light source is coupled to receive signals from the COsensor and respond to color changes in the sensor by transducing the color change into a light intensity change. A photodiode receives signals from the light source and responds to light intensity changes by transducing the light intensity changes into electronic signals representing varying degrees of light intensity. Data representing COmeasurements is transmitted for display to a mobile device.