What is the primary function of an acoustic calibrator?

The primary function of an acoustic calibrator is to emit a known sound pressure level and frequency. This tool is essential in ensuring that sound measurement devices, such as sound level meters or microphones, are functioning accurately. By providing a standard reference, acoustic calibrators allow users to verify the precision of their equipment, ensuring that the measurements taken in occupational hygiene monitoring are reliable and consistent.

The known sound levels generated by the calibrator serve as a benchmark against which the device can be compared. When a sound level meter is exposed to this known sound, it should register the sound pressure level that corresponds to the calibrator's output. If discrepancies occur, calibration adjustments to the measuring device can be made to ensure accurate data collection in environments where sound exposure may impact worker health.

Understanding how to utilize an acoustic calibrator is crucial for occupational hygienists, as accurate sound measurements are vital for assessing noise pollution and its potential effects on health. Thus, the correct answer reflects a fundamental aspect of sound measurement calibration necessary for maintaining the integrity of occupational health assessments.