Photoacoustic spectroscopy telemetering method and device based on micro quartz tuning fork optoacoustic effect
A technology of photoacoustic effect and photoacoustic spectroscopy, which is applied in the field of photoacoustic spectroscopy, can solve problems such as measurement result deviation, detection sensitivity is not high enough, and it is difficult to use dangerous goods to detect, so as to improve anti-interference ability, improve signal-to-noise ratio, and improve The effect of anti-interference ability
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[0040] The present invention will be further described in detail below in conjunction with specific embodiments, which are for explanation rather than limitation of the present invention.
[0041] See figure 1 , A photoacoustic spectroscopy telemetry method based on the photoacoustic effect of a quartz micro tuning fork, including the following operations:
[0042] 1) The continuous light whose wavelength changes continuously is modulated into light whose light intensity changes according to a certain frequency, and the frequency of the light intensity change is consistent with the resonance frequency of the quartz micro tuning fork, and then the light is irradiated on the object to be measured;
[0043] 2) The light is reflected on the object to be measured, the concave mirror is used to collect the reflected light of the object to be measured, and the reflected light is focused on the quartz micro tuning fork, which produces a photoacoustic effect in the quartz micro tuning fork, an...
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