A device and method for improving the performance of photoacoustic spectroscopy trace gas sensor
A technology of trace gas and photoacoustic spectroscopy, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problem of low utilization rate of laser
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[0026] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.
[0027] The invention provides a device for improving the performance of a photoacoustic spectrum trace gas sensor based on a Pockels cell reflective cavity, such as figure 1 As shown, the device includes a pulsed laser 1, a laser collimation system 2, a film polarizer 3, a first rectangular prism 4, a Pockels cell 5, a photoacoustic cell 6, a second rectangular prism 7, a preamplifier 8, Control and data acquisition system 9 and computer 10, wherein: pulsed laser 1, laser collimation system 2, film polarizer 3, first rectangular prism 4, Pockels cell 5,...
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