Definition

Noun: 1. The act or process of checking, adjusting, or marking the scale of a measuring instrument to ensure its accuracy, typically by comparison with a standard. 2. The result of this process; the state of being correctly adjusted or marked.

Usage

Calibration is a technical term used primarily in science, engineering, manufacturing, and technology. It refers to the essential maintenance procedure for any device that takes measurements (e.g., scales, thermometers, pressure sensors, monitors). The core concept involves comparing the device's readings to a known, more accurate standard and making adjustments if necessary.

Examples

• Noun:
  • The calibration of the laboratory scales is performed annually to meet quality standards.
  • Before the experiment, the scientist performed a quick calibration on the pH meter.
  • The calibration was off, so the speedometer showed 60 mph when the car was actually going 55 mph.

Advanced Usage

• "To require calibration": To need the process of checking and adjustment.
  • Older instruments often require frequent calibration.
• "Calibration curve": A method used in analytical chemistry where the signal from an instrument is plotted against known concentrations of a standard to create a graph used for determining unknown concentrations.
  • The technician generated a new calibration curve for the spectrophotometer.
• "Calibration certificate": A document provided by a calibration service that attests an instrument has been calibrated against traceable standards and meets specified tolerances.
  • The manufacturing plant keeps a calibration certificate for every critical measuring device.

Variants and Related Words

• Calibrate (verb): To perform the act of calibration.
  • You must calibrate the device before first use.
• Calibrated (adjective): Describing an instrument that has undergone calibration.
  • All measurements were taken using a calibrated thermometer.
• Recalibration (noun): The act of calibrating something again.
  • The sensor drift necessitated a recalibration.

Synonyms

• Adjustment: The act of making a minor change to optimize function.
• Standardization: The process of making something conform to a standard.
• Tuning: Adjusting for optimal performance (common for musical instruments and engines, but conceptually similar).

Antonyms

• Miscalibration: The state of being incorrectly calibrated.
• Drift: A gradual change in the calibration of an instrument over time.

Noun

1. the act of checking or adjusting (by comparison with a standard) the accuracy of a measuring instrument
   • the thermometer needed calibration