Gas sensor probe based on multi-point reflected spiral light path and detecting device
A gas sensor and spiral technology, applied in the field of laser spectral gas sensors, can solve the problems of inability to guarantee the stability and accuracy of the optical path, inability to improve the measurement accuracy, and reduce the size of the sensing probe, so as to facilitate mass production and improve the Probe signal-to-noise ratio and the effect of measurement accuracy, improved stability and accuracy
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[0048] Example 1:
[0049] Such as Figure 1-3 As mentioned, Embodiment 1 of the present disclosure provides a gas sensor probe based on a multi-point reflection spiral optical path, including: an optical path block 1, 5 reflectors 2 and a spiral optical path module 3 composed of 6 straight optical paths, and an upper cover 9. , The lower cover 10, the VCSEL laser parallel laser light source 6, the photodetector 4, the light source drive circuit 11 and the photodetector signal processing circuit 12. The spiral optical path module 3 is processed on an optical path block 1, each The linear light path and its adjacent linear light paths are connected end to end at a certain angle, and the linear light paths are sequentially connected and spiral inward. The light path block 1 may be a solid material such as metal, plastic or synthetic material. The spiral light path The module can be formed by machining or precision injection molding.
[0050] The spiral light path module 3 is arrange...
Example Embodiment
[0059] Example 2:
[0060] Such as Figure 4-6 As described, Embodiment 2 of the present disclosure provides a gas sensor probe based on a multi-point reflection spiral optical path, including: an optical path block 1, 13 reflectors 2 and a spiral optical path module 3 composed of 14 straight optical paths, and an upper cover 9. , The lower cover 10, the VCSEL laser parallel laser light source 6, the photodetector 4, the light source drive circuit 11 and the photodetector signal processing circuit 12. The spiral optical path module 3 is processed on an optical path block 1, each The linear light path and its adjacent linear light paths are connected end to end at a certain angle, and the linear light paths are sequentially connected and spiral inward. The light path block 1 may be a solid material such as metal, plastic or synthetic material. The spiral light path The module can be formed by machining or precision injection molding.
[0061] The spiral light path module 3 is arra...
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