CONCENTRATION MEASURING DEVICE

PROBLEM TO BE SOLVED: To provide an infrared absorption type concentration measuring device which achieves the expansion of a measurable concentration range, while having an optical path body with simple structure.SOLUTION: A concentration measuring device includes: an infrared source 11 emitting th...

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Bibliographic Details
Main Authors TAKEUCHI YUKIHIRO, YAMASHITA SHUICHI, TANEMURA TOMOKI, WADO HIROYUKI
Format Patent
LanguageEnglish
Published 09.01.2014
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:PROBLEM TO BE SOLVED: To provide an infrared absorption type concentration measuring device which achieves the expansion of a measurable concentration range, while having an optical path body with simple structure.SOLUTION: A concentration measuring device includes: an infrared source 11 emitting the light including infrared; an IR detector 12 receiving the light emitted by the infrared source so as to detect the light having a specific wavelength; an optical path body 13 which is arranged between the infrared source and the IR detector, which defines an optical path length, and whose closed space is filled with a detected object; and a phase change part 14 which is arranged at the optical path body and which changes a phase of the detected object in the closed space.
Bibliography:Application Number: JP20120136259