Bulb Thermometers | 合法醫療器材資訊網
Thebulbthermometeristhecommonglassthermometeryouprobablygrewupwith.Thethermometercontainssometypeoffluid,generallymercury.
The bulb thermometer is the common glass thermometer you probably grew up with. The thermometer contains some type of fluid, generally mercury.
Bulb thermometers rely on the simple principle that a liquid changes its volume relative to its temperature. Liquids take up less space when they are cold and more space when they are warm (this same principal works for gases and is the basis of the hot air balloon -- for more information, see How Hot Air Balloons Work[1]).
You probably work with liquids every day, but may not notice that things like water, milk and cooking oil all take up more or less space as their temperatures change. In these cases, the change in volume is fairly small. All bulb thermometers use a fairly large bulb and a narrow tube to accentuate the change in volume. You can see this for yourself by making your own bulb thermometer from scratch. Here is what youll need: ...
Bulb Thermometers | 合法醫療器材資訊網
Bulb Thermometer at Thomas Scientific | 合法醫療器材資訊網
Classic Tube Thermometers | 合法醫療器材資訊網
thermometer bulb | 合法醫療器材資訊網
1 | 合法醫療器材資訊網
Different Parts of a Mercury Thermometer | 合法醫療器材資訊網
What Is a Wet Bulb Thermometer? | 合法醫療器材資訊網
Wet | 合法醫療器材資訊網
Thermometer | 合法醫療器材資訊網
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