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:
Mar. 20, 2018
Filed:
Jun. 06, 2016
Texas Instruments Incorporated, Dallas, TX (US);
Walter B. Meinel, Tucson, AZ (US);
Kalin Lazarov, Colorado Springs, CO (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A radiation sensor includes an integrated circuit radiation sensor chip (A) including first () and second () thermopile junctions connected in series to form a thermopile () within a dielectric stack (). The first thermopile junction () is insulated from a substrate () of the chip. A resistive heater () in the dielectric stack for heating the first thermopile junction is coupled to a calibration circuit () for calibrating responsivity of the thermopile (). The calibration circuit causes a current flow in the heater and multiplies the current by a resulting voltage across the heater to determine power dissipation. A resulting thermoelectric voltage (Vout) of the thermopile () is divided by the power to provide the responsivity of the sensor.