Differential Thermometer
| Formula / Notation | ΔT = T_sample − T_reference; small differential measurement device |
|---|---|
| Also Known As | Differential temperature measurement, Beckmann thermometer (related type), temperature difference measurement |
What is Differential Thermometer?
A thermometer designed to measure small differences in temperature between two points rather than absolute temperatures. It is used in precise calorimetric measurements and thermal analysis experiments where small temperature changes are significant.
Formula & Notation
Other Names / Synonyms: Differential temperature measurement, Beckmann thermometer (related type), temperature difference measurement
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A thermometer designed to measure small differences in temperature between two points rather than absolute temperatures. It is used in precise calorimetric measurements and thermal analysis experiments where small temperature changes are significant.
Differential thermometers are used in Beckmann thermometry (measuring boiling point elevation and freezing point depression for molar mass determination), in reaction calorimetry (detecting heat of reactions), in flow calorimeters, and in environmental monitoring of thermal gradients.
No specific safety hazard for the instrument. Handle glass differential thermometers carefully (mercury-containing devices are now largely replaced with digital thermistors). In high-temperature applications, ensure differential probes are rated for the temperature range.
The formula or notation for Differential Thermometer is: ΔT = T_sample − T_reference; small differential measurement device