Noise meter-sensitivity calibration and influencing factors
Noise Meter - Calibration of Sensitivity
Calibration should be done both before and after use to guarantee measurement accuracy.
Put the sound level calibrator on the microphone, turn on the calibration power, read the result, change the noise meter's sensitivity potentiometer, and finish calibrating.
Influencing Factors on the Noise Meter
The noise meter is primarily used to measure noise, and the following varieties are classified as noise measurement:
1. The measurement object can be separated into the measurement of sound source characteristics and the characteristic measurement of ambient noise (sound field).
2. It can be separated into steady-state noise measurement and unsteady-state noise measurement based on the time characteristics of the sound source or sound field. There are three categories of non-stationary noise: pulse sound, irregular noise, and periodic noise.
3. Based on the sound source's or the sound field's frequency characteristics, it can be classified as broadband noise, narrowband noise, or noise with pronounced pure tone components.
4. Measurements can be categorized into precision measurements, engineering measurements, noise surveys, etc. depending on the level of accuracy required.
