| 摘要 |
<p>PURPOSE:To provide an infrared gas analyzer which is improved in detecting sensitivity and measurement accuracy against components to be measured by remarkably increasing the quantity of infrared rays made incident to the light receiving section of an infrared sensor in such a way that a light condensing mirror is provided on the inlet or outlet side of a measuring cell so that an infrared-ray flux transmitted through the cell can be condensed to the sensor. CONSTITUTION:In the title gas analyzer which is provided with an infrared-ray source 2 on the inlet side of a measuring cell 1 into which a sample gas is introduced and a detecting section 4 constituted by incorporating an infrared sensor 6 in a sensor fitting block 5 together with a band-pass filter 7 on the outlet side of the cell 1, a light condensing mirror 9 is provided between the outlet-side end face (or inlet-side end face) of the cell 1 and detecting section 4 (or infrared-ray source 2) so that an infrared-ray flux emitted from the cell 1 can be condensed and made incident to the sensor 6.</p> |
