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Well, wet bulb thermometer works specifically by evaporating water and measuring temperature. Psychometer is completely different idea. Yes, measuring humidit
by lmilcin 5y ago
Well, wet bulb thermometer works specifically by evaporating water and measuring temperature.
Psychometer is completely different idea.
Yes, measuring humidity reliably is a difficult problem as basically any other measurement that requires direct exposure of eroding/corroding components and fragile electronics to elements.
- bumby 5y agoI believe a psychrometer operates on the same principle. "A psychrometer, or a wet and dry-bulb thermometer, consists of two calibrated thermometers, one that is dry and one that is kept moist with distilled water on a sock or wick. At temperatures above the freezing point of water, evaporation of water from the wick lowers the temperature, such that the wet-bulb thermometer will be at a lower temperature than that of the dry-bulb thermometer. " https://en.wikipedia.org/wiki/Hygrometer https://en.wikipedia.org/wiki/Hygrometer The psychrometer just compares the wet and dry bulb temperatures to arrive at a relative-humidity value. I.e., it still operates on the principle of a wet-bulb thermometer.