旋转的湿度计是如何工作的,它是如何不同于静态干/湿球温度计,和如何获得湿度读数?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 08 - 03 - t19:46:15z //www.hoelymoley.com/feeds/question/21198 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/21198 2 旋转的湿度计是如何工作的,它是如何不同于静态干/湿球温度计,和如何获得湿度读数? uhoh //www.hoelymoley.com/users/6031 2021 - 04 - 30 - t12:43:18z 2021 - 05 - 02 - t01:21:09z < p >回答我之前的问题< a href = " //www.hoelymoley.com/q/19151/6031 " >相对湿度是如何从干湿球读数确定?< / >提供方程将两个温度测量转换为相对湿度。

In comments under this question I have heard of a Whirling Hygrometer which seems to be the same basic beast (two thermometers, one with a wet bulb from a cotton sock and small reservoir) but like the name says, this one you have to "whirl" around for most of a minute; presumably the evaporation is more efficient in the blowing air.

But I don't understand if that leads to a lower cold temperature and therefore requires a different equation, nor if the speed that it is whirled makes a difference. And I'm not sure why whirling is used if the static non-whirled kind also can be used, without moving parts.

Question: How does a whirling hygrometer work, how does it differ from static dry/wet bulb thermometer, and how to obtain humidity from its readings?

Related:

wet/dry bulb humidity measurement click for larger

 //www.hoelymoley.com/questions/21198/-/21201 # 21201 3 回答的梧桐树下旋转的湿度计是如何工作的,它是如何不同于静态干/湿球温度计,和如何获得湿度读数? 梧桐树下 //www.hoelymoley.com/users/18990 2021 - 05 - 01 - t22:35:33z 2021 - 05 - 02 - t01:21:09z < p >而不是«旋转温度计»你可能指«< a href = " https://en.wikipedia.org/wiki/Hygrometer # Sling_psychrometer”rel = " nofollow noreferrer " >悬挂式湿度计< / >»干球温度计和湿球温度计组成。然而,不同于一个静态的湿球温度计所示问题,不断旋转的两个温度计允许蒸发湿布在网络上灯泡温度计«原始部分»周围的空气。< / p > < p > < a href = " https://i.stack.imgur.com/euwN4.jpg " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/euwN4.jpg " alt = "在这里输入图像描述" / > < / > < / p > < p > (< a href = " https://automationforum。有限公司/ what-is-a-sling-psychrometer-limitations-application-working nofollow noreferrer“rel = >信用< / >)< / p > < p >如果周围的空气湿球温度计小于水饱和,湿球温度计上显示的温度将低于干球温度计上的一个阅读。旋转运动旨在暴露空气的湿球温度计还没有接触前者。因此,记录允许您报告(干)温度,露水温度和空气的湿度。< / p > < p >一个初学者的介绍也同样给< A href = " https://www.youtube.com/watch?v = OB0_yM8g0nM nofollow noreferrer“rel = > < / >,计算温差阅读相关的图表(一摄氏度,其他华氏温标),相对湿度< a href = " https://www.tqcsheen.com/en/product/sling-psychrometer-en/ " rel = " nofollow noreferrer " > < / >。< / p > <人力资源/ > < p >建议由用户<代码> @uhoh > < /代码,值得来设置数据的质量得到这个乐器为背景。1993年版的< a href = " https://www.nps.gov/museum/publications/conserveogram/03 - 01. - pdf”rel = " nofollow noreferrer " >保存O克3/1 < / >(从系列的访问计划< a href = " https://www.nps.gov/museum/publications/conserveogram/cons_toc.html " rel = " nofollow noreferrer " > < / >)提到«概述这些乐器是准确的,<跨类= " math-container " > \下午\ pu美元{2 \ % RH} $ < / span >当适当维护和运营的训练和练习用户。»同样,导游提醒< a href = " https://en.wikipedia.org/wiki/Clausius%E2%80%93Clapeyron_relation " rel = " nofollow noreferrer " > < / >当克劳修斯——克拉珀龙方程关系声明:< / p > < blockquote > < p >«干湿球湿度计和湿度图仅供使用在一定范围的大气压力。高海拔高于900米(约。3000英尺),将直接影响RH阅读的准确性,除非一个压力校正公式或湿度图或计算尺申请使用适当的压力。更多信息参见安·希区柯克和戈登·c·雅各比“测量相对湿度在博物馆在高海拔,”研究保护25(1980):第78 - 86页。 (Copies are available to NPS sites from Curatorial Services Division, Harpers Ferry office.»

A study by Wang and Tang / Singapore's metrology centre published by 2007 mentions:

«... that although the psychrometer coefficient of a particular psychrometer can be quite consistent with long-term stability typically within the range of ± 1% rh equivalent, there are larger variations (up to 4% rh equivalent) among different psychrometers even of the same type.»
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