Testing device and inspecting method for low temperature transparency remaining of protective mask
A technology for protective masks and test devices, which is applied to measurement devices, instruments, material analysis by optical means, etc., can solve the problems of poor repeatability of measurement results, difficulty in finding poor brightness, scattered test data, etc., and achieves small errors and savings. Time and money, the effect of measuring accurate results
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[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0030] Please refer to the device structure of the present invention figure 1 Summary of the invention: the low temperature and bright performance test device of the protective mask first simulates the breathing action of a person under different exercise states by an electric respirator 1 and generates a breathing airflow.
[0031] When the electric ventilator 1 exhales, the air expelled by it passes through the valve 2 and the adjustable valve 5 to the constant temperature humidifier 6, so that the temperature of the airflow increases and the humidity is increased, and then it is sent to the constant temperature humidifier 7 for heating again , after humidification, measure through temperature and humidity probe 8, and then deliver to the standard human head 15 in the low temperature box 13 through the one-way valve 9 and the air inlet 14. At this ti...
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