| 高露点湿度标准装置的研制 |
| Development of High Dew Point Humidity Standard Generator |
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| 中文摘要: |
| 目前我国湿度计量基准中露点温度溯源的最高上限为80 ℃，为满足更高露点温度下的湿度参数溯源需求，研制了一套基于双温双压法原理的高露点湿度标准装置。该装置由恒温系统、预饱和系统、饱和系统、测量室和温度、压力测量与控制系统等部分组成，能够产生的露点温度范围为80～150 ℃，对应测量室的温度范围为80～200 ℃，绝对压力范围为0～1 MPa，扩展不确定度为0.34～0.80 ℃（k=2）。该装置准确性好、操作方便，弥补了国内在露点温度高于100 ℃时，温度计校准的不足。 |
| 英文摘要: |
| At present, the maximum upper limit of dew point temperature traceability in China's humidity measurement is 80℃. In order to meet the demand of humidity parameter traceability at higher dew point temperature, a high dew point humidity standard device set based on the principle of double temperature and double pressure method is developed. The device consists of the constant temperature system, pre-saturation system, saturation system, measuring chamber and temperature, pressure measurement and control system. It can produce the dew point temperature of 80~150℃, the corresponding measuring temperature range is 80~200℃, the absolute pressure range is 0~1MPa, and the expanded uncertainty is 0.34~0.80 ℃ (k=2). The device has good accuracy, convenience to operate and important technical application value. |
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| 中文关键词: 高露点湿度 高温相对湿度 饱和系统 |
| 英文关键词:high dew-point generator high temperature high pressure humidity standard |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2021.03.07 |
| 引用本文：胡艳青1, 柴塬1，陈洁新1，刘嘉2，聂晶3，白雪松3.高露点湿度标准装置的研制[J].计测技术,2021,(3):. |
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