IR gas spectrometry appts. - has internally polished cylindrical analysis chamber and filtered detector measuring luminous flux from flashing lamp

摘要

A device for performing infra red gas spectrometry comprises a chamber (2) having a polished cylindrical wall into which gas may be introduced through ports (51) and (52). A lamp (1) is mounted at one end of the chamber in a recess (10) by means of a retaining member (3). The lamp has a circular silvered area (11) effecting a circumferential ring shaped light source. At the distal end a window (6) effects a gas seal and protects a filter (7) which is held in place by mounting unit (8). This unit carries a detector (4) for gas analysis which inturn is retained by a resilient mounting member (9). In operation the light source is operated intermittently.