vacuum gauge

Thân thiện

A mechanic checks the vacuum gauge on the engine.

Definition

1. Noun:
   • An instrument for measuring pressure below atmospheric pressure: A "vacuum gauge" is a device that measures the degree of vacuum, or the negative pressure, in a sealed system relative to the surrounding atmospheric pressure.

Usage Examples

• Noun:
  • The technician used a vacuum gauge to check the pressure inside the refrigeration system.
  • A reading on the vacuum gauge confirmed that the chamber had been successfully evacuated.

Advanced Usage

• "to read a vacuum gauge": to interpret the measurement shown on the instrument.
  • The engineer knew how to read the vacuum gauge accurately to assess the system's integrity.

Variants and Related Words

• Vacuum meter (n): A synonym for vacuum gauge.
  • The laboratory's equipment included a highly sensitive vacuum meter.
• Manometer (n): A more general instrument for measuring pressure, which can be designed to measure vacuum (negative pressure) as well as positive pressure.
  • A U-tube manometer can function as a simple vacuum gauge.

Synonyms

• Pressure gauge (for vacuum): A gauge specifically designed for sub-atmospheric pressure measurement.
• Vacuum indicator: A device that shows the state of vacuum.

Related Phrases

• "under vacuum": a state of negative pressure, often monitored by a vacuum gauge.
  • The sample was stored under vacuum to prevent degradation.

Học thuật

Noun

1. a gauge for indicating negative atmospheric pressure

Từ đồng nghĩa

• vacuum gage