Title :
Platinum IR sources for NDIR gas monitors
Author :
Puton, J. ; Jasek, K. ; Siodlowski, B. ; Knap, A. ; Wisniewski, K.
Author_Institution :
Inst. of Chem., Mil. Univ. of Technol., Warsaw, Poland
Abstract :
The work presents the results of research of the new thermal IR sources to be used in NDIR (nondispersive infrared) gas monitors. The developed sources are adapted to direct modulation that consists of supplying the heater with variable voltage. Appropriate heat transfer makes it possible to reach a modulation frequency as high as 50 Hz. This value is considerably greater then the frequency limit that can be obtained for other IR sources. The sources show very good dynamic parameters, which makes them suitable for fast measurements of concentration
Keywords :
gas sensors; heat transfer; heating elements; infrared sources; monitoring; optical sensors; platinum; 50 Hz; IR sources; NDIR gas monitors; Pt; concentration measurements; direct modulation; dynamic parameters; frequency limit; heat transfer; heater variable voltage supply; modulation frequency; nondispersive infrared gas monitors; platinum IR sources; thermal IR sources; Chemical technology; Frequency modulation; Heat transfer; Infrared heating; Insulation; Optical materials; Platinum; Pollution measurement; Radiation detectors; Voltage;
Conference_Titel :
Electronics Technology: Concurrent Engineering in Electronic Packaging, 2001. 24th International Spring Seminar on
Conference_Location :
Calimanesti-Caciulata
Print_ISBN :
0-7803-7111-9
DOI :
10.1109/ISSE.2001.931051
