vacuum gage

Thân thiện

A technician checks the vacuum gage on the laboratory equipment.

Definition

Noun: A vacuum gage is a scientific instrument designed to measure pressures that are below atmospheric pressure. It indicates the degree of vacuum, or negative pressure, within a sealed system.

Usage

A vacuum gage is used to monitor and quantify the level of vacuum in a closed space. It is essential in laboratories, industrial processes (like semiconductor manufacturing), and HVAC systems to ensure proper conditions.

Examples

• The technician checked the vacuum gage to ensure the chamber had reached the required pressure for the experiment.
• A reading on the vacuum gage confirmed the system was properly sealed and evacuated.

Advanced Usage

• Technical Context: In physics and engineering, a vacuum gage is critical for processes requiring specific low-pressure environments, such as in vacuum coating or freeze-drying.
• Calibration: For accurate measurements, a vacuum gage must be regularly calibrated against a known standard.

Variants and Related Words

• Vacuum gauge: An alternative spelling for "vacuum gage." Both terms are used interchangeably.
• Manometer: A more general instrument for measuring pressure, which can sometimes be adapted to measure vacuum.
• Pressure gauge: A general term for any instrument that measures pressure, which may include the ability to measure vacuum.

Synonyms

• Vacuum meter
• Pressure indicator (when configured for sub-atmospheric pressure)

Related Phrases

• Under vacuum: A state described by the measurement from a vacuum gage.
  • The container was placed under vacuum, as shown by the gage.
• Gage reading: The specific value indicated by the instrument.
  • The gage reading showed a pressure of 10^-3 torr.

Học thuật

Noun

1. a gauge for indicating negative atmospheric pressure

Từ đồng nghĩa

• vacuum gauge