28-04-2023 дата публикации
Номер: CN116026788A
Принадлежит:
The invention discloses a digital nitrous oxide gas detection system, and belongs to the technical field of gas detection.The digital nitrous oxide gas detection system comprises a signal generation module, an optical multi-pass pool module, a second laser and a signal receiving module.The signal generation module comprises a signal controller and an ICL laser. According to the utility model, devices such as a signal generator and a digital lock phase which are high in commercial cost are replaced, so that the device has the characteristics of simple and compact structure, the size and production cost of the device are greatly reduced, full digitalization can be realized from signal sending to receiving demodulation, the cost is reduced, absolute concentration information is obtained by processing a falling edge, and the detection accuracy is improved. The linear concentration fitting relation established by the rising edge can be well calibrated and checked, and the software signal generator ...
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