INFRARED ABSORBING TYPE GAS CONCENTRATION MEASURING METHOD AND APPARATUS

• Main Authors: KAWAZU NARIYUKI, SHIOZAWA MASAHIRO, NITTA TAKAHIRO
• Format: Patent
• Language: English
• Published: 05.11.1999
• Edition: 6
• Subjects: COLORIMETRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; PHYSICS; RADIATION PYROMETRY; TESTING

PROBLEM TO BE SOLVED: To accurately measure the concn. of gas even if the absorption or noise radiation of infrared rays emitted into a cell is changed in an infrared absorbing type gas concn. measuring method. SOLUTION: The temp. conditions of cells 1A, 1B are changed and, under the respective temp...