Patent · US Expired

Calibration device for carbon dioxide sensor

US7174766B2 · kind B2 · utility

3Cited by
11References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 24, 2005
Grant dateFeb 13, 2007
Priority date
Expiry dateMay 24, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T436/100833
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A self-calibrating carbon dioxide sensor that includes a carbon dioxide detector and a carbon dioxide gas generator. In some embodiments, the carbon dioxide gas generator includes a heating element and a carbon dioxide gas releasing solid material in thermal communication with the heating element. The carbon dioxide gas releasing solid material releases carbon dioxide when heated by the heating element. Methods of calibrating a self-calibrating carbon dioxide sensor are also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.