thermogravimeter
Definition
Noun: A scientific instrument that is a type of hydrometer (a device for measuring the density or specific gravity of a liquid) which is equipped with an integrated thermometer. It is used to measure density at a specific, known temperature or to correct density readings for temperature variations.
Usage
The term is a technical, compound noun used primarily in scientific contexts, such as chemistry, chemical engineering, and materials science. It refers to the specific piece of laboratory equipment.
Examples
- Noun:
- The chemist used a thermogravimeter to obtain an accurate specific gravity reading for the solution at 20°C.
- Accurate density measurements require temperature control, often provided by a thermogravimeter.
Advanced Usage
- The instrument combines the functions of a hydrometer (density measurement) and a thermometer (temperature measurement) into a single device, allowing for simultaneous reading and automatic temperature correction.
Variants and Related Words
- Thermogravimetric (adjective): Pertaining to the measurement of changes in mass in relation to temperature.
- Thermogravimetric analysis (TGA) is a different technique that measures mass change, not liquid density.
- Hydrometer (noun): A device for measuring the density or specific gravity of liquids.
- Thermohydrometer (noun): A synonym for thermogravimeter.
Synonyms
- Thermohydrometer: The most direct synonym.
- Temperature-compensated hydrometer: A descriptive synonym.
Notes
- This is a specialized technical term. In many practical laboratory settings, scientists might use a standard hydrometer alongside a separate thermometer, rather than a single integrated thermogravimeter.
- Do not confuse with thermogravimetric analysis (TGA), which is a related but distinct analytical technique involving mass and temperature.
Noun
-
a hydrometer that includes a thermometer
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