Comparison Research of On-Line Water Dew Point Hygrometer

The comparison method of on-line water dew point hygrometer is established.The analysis result of on-line dew point hygrometer is compared with the cooled surface condensation hygrometer,in order to verify whether the determination result of on-line dew point hygrometer can be satisfied with the requirement of water dew point on-line measurement of natural gas,and calibrate the measuring results of the on-line dew point hygrometer according to the comparison results.