| 无汞污染的水柱型大气压强计 |
| 摘要点击 826 全文点击 1471 修订日期：1993-12-25 |
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| 中文关键词 小尺寸水柱气压计 汞污染 水的饱和蒸气压 环境温度 |
| 英文关键词 miniatured watercolumn barometer mercury pollution saturated water vapor pressure ambient temperature |
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| 中文摘要 |
| 提出一种小尺寸(1.2m)的水柱型大气压强计,解决了生产和使用水银柱大气压强计时产生的汞污染环境问题。讨论水柱大气压强计的工作原理和使用方法,分析测量误差。简述应用中的若干问题。文中给出的压强计在海拔为0-3km、环境温度为6-40℃范围使用,测量结果的标准误差小于±0.9mmHg,能分辨±0.1mmHg的大气压强变化,适用于环境温度变化不大的室内大气压强测定。由于水的饱和蒸气压随环境温度有较大变化,从而导致了用水柱测大气压强的困难,文中报道了一种在一定环境温度范围内(6-40℃)解决这个问题的方法。 |
| 英文摘要 |
| A miniatured (1.2 m long)watercolumn barometer has been developed to solve the environmental problem of mercury pollution resulted from the production and opreation of a mercury column barometer. The working principles, use methods and measurement errors of the watercolumn barometer were discussed and some aspectS of its application were briefly described.This barometer can work well at 0-3 km above sea level and at an ambient temperature in the range of 6-40℃ The results from its measurement have a standard error of less than ±0.9 mmHg and it can detecct a change in atmospheric pressure of f 0.1mmHg. This newly developed barometer is applicable to measure the atmospheric pressure in a room where there will be a less change in ambient temperature.A conventional watercolumn barometer is very difficult to be used to measure the atmospheric pressure because the pressure of saturated water vapor varies largely with a change in room temperature. The use of this new barometer can also solve this problem. |
