Definition

1. Noun:
   • A pyrometer that measures high temperatures by the resistance in a heated wire: A "resistance pyrometer" is a scientific instrument used to measure very high temperatures. It operates based on the principle that the electrical resistance of a metal wire changes predictably with temperature. By measuring this resistance, the temperature can be determined.

Usage Examples

• Noun:
  • The engineer used a resistance pyrometer to monitor the temperature inside the furnace.
  • For accurate readings above 1000°C, a resistance pyrometer is often preferred.

Advanced Usage

• Technical Context: In industrial and laboratory settings, "resistance pyrometer" specifically refers to devices using platinum resistance thermometers (PRTs) for high-temperature applications.
  • The stability of the platinum wire in the resistance pyrometer ensures long-term accuracy.

Variants and Related Words

• Pyrometer (n): A broader category of devices for measuring high temperatures.
• Resistance thermometer (n): A more general term for temperature sensors using the resistance principle, often used at lower temperatures than a typical resistance pyrometer.
• Thermocouple (n): Another type of temperature sensor that operates on a different principle (voltage generation).

Synonyms

• Electrical resistance pyrometer
• Resistance temperature detector (RTD) for high-temperature use (Note: RTD is a broader term that can include lower-temperature devices).

Related Phrases

• "based on resistance change": Describing the operating principle.
  • The measurement from a resistance pyrometer is based on resistance change in a sensing element.

Noun

1. pyrometer that measures high temperatures by the resistance in a heated wire