Device for detecting oxygen concentration
A technology of oxygen concentration and detection channels, which is applied in measuring devices, material analysis using sound waves/ultrasonic waves/infrasonic waves, instruments, etc., can solve the problems of large sampling data changes, long detection channels, poor consistency, etc., and achieve small sampling data changes , reduce costs, and maintain consistent results
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[0014] figure 2 with image 3 A specific embodiment of the present invention is shown: a device for detecting oxygen concentration, comprising a detection circuit board 1, the detection circuit board 1 is provided with a detection channel 2, and the detection channel 2 is detachably connected to the detection circuit board 1. The two ends of the detection channel 2 are respectively provided with sealing layers 3, the two sides of the detection circuit board 1 are respectively provided with ultrasonic transceiving sensors 4, the probes of the ultrasonic transceiving sensors 4 are respectively sealed in the detection channel 2 by a sealing layer 3 At both ends, a sample gas channel 5 is provided above the detection channel 2. The sample gas channel 5 is parallel to the detection circuit board 1 and crosses the detection channel 2, and one end of the sample gas channel 5 is provided with an air inlet 6. An air outlet 7 is provided at the other end, and a diffusion channel 8 is pr...
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