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For such spaces, the indoor and outdoor air temperature and mean radiant temperature and the air speed need to be measured. [1] ANSI/ASHRAE Standard 55 provides guideline on the position, time, and equipment accuracy of the physical measurement. The measurement locations should be where the occupants are expected to spend time in.
The temperature scale is marked on the stem as usual. However, the temperature that is actually measured is the temperature at the bulb. [1] Ambient corrections are difficult to achieve with this system and are not usually done. So it is not as accurate as a conventional precision thermometer.
Atmospheric temperature is a measure of temperature at different levels of the Earth's atmosphere. It is governed by many factors, including incoming solar radiation, humidity, and altitude. The abbreviation MAAT is often used for Mean Annual Air Temperature of a geographical location.
When the temperature of a surface is accurately known (e.g. by measuring with a contact thermometer), then the sensor's emissivity setting can be adjusted until the temperature measurement by the IR method matches the measured temperature by the contact method; the emissivity setting will indicate the emissivity of the surface, which can be ...
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A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and (2) some means of converting this change into a numerical value (e.g. the visible scale that is marked on a mercury ...
Come summer, the preferred temperature shifts to balance comfort with energy efficiency, survey authors say. During the warmest season, survey-takers say: 42% like the air conditioning set between ...
Cleaning your house can be a significant task, but it's important to remember that there's no one-size-fits-all approach for how to clean your home. Regardless of how you tackle it, cleaning the ...