Control method of rapid high-precision cold mirror type dew-point instrument
A control method and high-precision technology, applied to controllers with specific characteristics, electric controllers, moisture content of materials, etc., can solve problems such as failure to reach a stable state, no reading value, and extended measurement time
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[0019] Further illustrate the present invention below in conjunction with accompanying drawing and specific embodiment
[0020] The fast and high-precision chilled mirror dew point meter provided by the present invention has a structure as follows: figure 1 shown. Including dew point chamber, photoelectric detection system, temperature measurement system, refrigeration system, single-chip microcomputer control processing system, etc. The dew point chamber includes a photoelectric detection unit composed of a light emitting diode 1, a photodiode 2 and a mirror 3, a platinum resistor 4 and a refrigeration unit 5; the measurement circuit is composed of a photoelectric detection circuit 6 and a temperature measurement circuit 7; the control circuit is composed of a controller 9 and The refrigeration driving circuit 8 is composed; the measuring circuit is respectively connected with the photoelectric detection unit of the dew point chamber, the platinum resistor 4 and the controll...
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