INFRARED GAS ANALYZER

摘要

In infra-red gas analyzer source of radiation, working cuvette and parabolic mirror in focus of which photo-receiver is placed are arranged in at one optical axis. Output of photo-receiver through amplifier is connected to block for processing electric signals to which are included analog-digital transformer, microprocessor and device for indication. Gas analyzer includes as well at least two sources of radiation to each of which given temperature interval corresponds. Sources of radiation include at least two active elements with p-n transitions that emit in maxima at wavelengths matched with wavelength in maximum of band of natural absorption of analyzed gas for respective temperature intervals. Additional source of radiation includes at least two active elements with p-n transitions that emit in maxima at wavelength out of band of natural absorption of bas being analyzed. At that working temperature interval and duration of operation of sources of radiation are determined by temperature indicator. Sources of radiation are combined into one mechanical block that displaces those to working position.