| 冷镜式露点测量结露的光电识别方法 |
| Photoelectric Recognition Method of Cold Mirror Dew Point Measurement |
| |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
| 中文摘要: |
| 为实现高准确度的冷镜式露点仪结露测量，提出一种基于两对光电对管判别的光电识别方法，其中一对对管在冷镜所在的测量腔内直射作为环境对照组，另一对经过有半导体制冷的冷镜表面反射，利用光电信号值的三阶导数曲线零点判别冷镜全表面产生结露的时刻。经实验证明，该方法可以满足-20～25 ℃温度范围内露点湿度气体的结露测量需求，具有技术借鉴意义。 |
| 英文摘要: |
| In order to realize the condensation measurement of the cold mirror dew point meter with high accuracy, a photoelectric identification method based on the discrimination of two pairs of photoelectric pair tubes is proposed. One pair of the tubes is directly radiated in the measuring cavity where the cold mirror is located as the environmental control group, and the other pair of the tubes is reflected by the cold mirror surface with semiconductor refrigeration. The zero point of the third derivative curve of the photoelectric signal value is used to distinguish the time of condensation on the whole surface of the cold mirror. The experimental results show that this method can meet the needs of dew point humidity gas condensation measurement in the temperature range of - 20 ~ 25 ℃, which has technical reference significance. |
|
| 中文关键词: 露点 全表面结露 光电识别 光电管对照 三阶导数 |
| 英文关键词:dew point photoelectric recognition photoelectric tube comparison third derivative |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2020.02.13 |
| 引用本文：万浩涵，杨永军.冷镜式露点测量结露的光电识别方法[J].计测技术,2020,(2):. |
| 关闭 |
