JPH01142848U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a schematic signal diagram for explaining the basic concept and operation of the present invention. 2 to 9 show various specific embodiments of the gas analyzer according to the present invention, FIG. 2 is a general schematic diagram of the first embodiment, and FIG. 3 is a diagram showing the signal processing section of the gas analyzer. Timing chart of each part signal, Figure 4 is a timing chart of main part signal in the case of the modified example, Figure 5 A and B are a schematic front view and partially cross-sectional schematic side view of a specific configuration example of the main part (chopper). figure,
Figure 6 A and B are main parts (timing signal generation means)
A block circuit diagram of one configuration example and a timing chart of each part of the signal; FIGS. FIG. 8 is an overall schematic configuration diagram of the second embodiment;
FIG. 9 is a timing chart of various signals in the signal processing section. FIGS. 10 to 13 are for explaining the technical background of the present invention and problems in the prior art.
Fig. 10 is a schematic configuration diagram showing an example of the detection section of a general gas analyzer, Fig. 11 is a schematic signal diagram to explain the basic problems, and Fig. 12 is a diagram of a conventional gas analyzer. FIG. 13 is a block circuit configuration diagram showing an example of a signal processing section, and FIG. 13 is an overall schematic configuration diagram showing another example of a conventional gas analyzer. 5, 5R, 5S...Quantum type detector, 12...Timing signal generation means, 13...Switching means.

Claims (1)

[Claims for Utility Model Registration] In a gas analyzer equipped with a quantum detector that detects measurement light that is sampled at a constant cycle, a timing signal is generated that corresponds to a stable region of the output signal from the detector. and switching means for passing only a stable portion of the output signal from the detector in accordance with the timing signal output from the timing signal generating means.