Compensated infrared absorption sensor for carbon dioxide and other infrared absorbing gases

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专利权人:

GAS RESEARCH INSTITUTE

发明人:

OWEN THOMAS E.

申请号：

US20040753614

公开号：

US6969857(B2)

申请日:

2004.01.08

申请国别(地区):

美国

年份:

2005

代理人:

摘要：

A gas sensor, whose chamber uses filters and choppers in either a semicircular geometry or annular geometry, and incorporates separate infrared radiation filters and optical choppers. This configuration facilitates the use of a single infrared radiation source and a single detector for infrared measurements at two wavelengths, such that measurement errors may be compensated.

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