Bi-Metallic Thermometer Instrument Information
A widely-used device which measures temperature, by converting temperature change into mechanical displacement. The thermometer consists of two strips of dissimilar metals (typically steel and copper or brass), joined together, side-by-side. As the strips are heated, the metals expand at different rates, causing the strip to bend. As the strip bends, it moves a needle, which points to a calibrated scale on the display of the thermometer, providing a temperature readout.
Common Uses
- Quick, inexpensive temperature measurement in many applications, such as in water, fluids, gases, ovens, kilns, furnaces and freezers.
- Most commonly found in thermostats.
Common Types
- Readout Type (Dial, Digital)
- Strip Type (Flat, Coiled)<
- Strip Metals (Iron, Copper, Brass)
- Range
Measurement Parameter
Temperature
Calibration Discipline
Calibration Equipment Used
- Dry Well
