Laboratory thermometers measure temperature with a
high level of precision for applications such as experiment monitoring, instrument
calibration, materials testing, and maintaining a sterile work environment.
Options include differential and digital logging thermometers; portable units that
measure pH, ORP, and temperature; and millikelvin thermometers for applications with a low
measuring uncertainty of 0.01–0.001 °C.
What Are Different Types of Laboratory Thermometers?
Thermometers may contain a fluid such as mercury or a gas in a glass or metal tube.
In the case of liquid-in-glass thermometers, the liquid expands as the temperature
rises, indicating the temperature.
Resistance thermometers, aka resistance
temperature detectors (RTDs), use the resistance of the RTD element to measure the
temperature.
Thermocouples, sensors used for temperature measurement and control,
are usually self powered.
Noncontact infrared thermometers convert IR energy to an
electrical signal that can be read as temperature.
