Vakiopainekaasulämpömittarissa
Vakiopainekaasulämpömittari is a type of gas thermometer that operates at constant pressure. Unlike a constant-volume thermometer, the volume of the gas inside the thermometer changes to maintain a constant pressure as the temperature fluctuates. This type of thermometer is based on Charles's Law, which states that for a fixed amount of gas at constant pressure, the volume is directly proportional to its absolute temperature.
The construction of a vakiopainekaasulämpömittari typically involves a bulb filled with a gas, such as hydrogen
Vakiopainekaasulämpömittarit are known for their accuracy and sensitivity, especially at low temperatures. However, they are also