Imaging type dew-point instrument

Abstract

The invention relates to the technical field of dew condensation measurement, and provides an imaging type dew-point instrument. The instrument comprises a control system, a dew condensation system, a heat dissipation system and a photoelectric detection system, the dew condensation system, the heat dissipation system and the photoelectric detection system are respectively connected with the control system, the dew condensation system comprises a mirror surface, and the photoelectric detection system comprises a photoelectric imaging device and a detection cover body; and the detection cover body comprises a detection cavity and a detection upper cover arranged above the detection cavity, the photoelectric imaging device is arranged in the detection upper cover and comprises a light source and a camera, the camera is provided with a lens, the light source is arranged on one side of the detection upper cover, and the camera is arranged in the middle of the detection upper cover. According to the invention, the photoelectric detection system is improved, the problems of poor reliability and anti-interference performance of the dew-point instrument are solved, and the measured value of the dew point is more accurate.

Description

technical field [0001] The present invention relates to the technical field of dew condensation measurement, in particular to an imaging dew point meter. Background technique [0002] The working principle of the existing dew point meter is: when the gas to be measured enters the condensation chamber and passes over the mirror at a certain flow rate, the temperature of the mirror is higher than the dew point temperature of the gas, and the dry mirror almost totally reflects the incident light of the light source. When the dew point meter is used for measurement, the refrigeration device is first controlled according to the intensity of the reflected light detected by the photoelectric detector, so that the temperature of the mirror surface drops until the mirror surface condenses or frosts. The intensity of the light will change accordingly, and the photodetector senses the change of the reflected light signal and locks the temperature. The temperature at this time is the de...

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Problems solved by technology

[0004] The present invention aims to overcome at least one defect (deficiency) of the above-mentioned prior art, and provides an imaging dew point meter for solving the reliability and resistance of the dew point meter The problem of poor interference makes the measurement of dew point more accurate

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