1 minute to learn how to buy a quality noise meter
Noise meters are used for sound level measurement of environment, machinery, traffic, ships and other noises; decibel meter while the classification of noise measurement is mainly as follows:
1. Noise meters can be divided into precision measurements, engineering measurements and noise census, etc. from the accuracy of the measurement requirements.
2. Noise meters can be divided into steady state noise measurement and non-steady state noise measurement from the time characteristics of the sound source or sound field. Non-stationary noise can be divided into periodic change noise, irregular change noise and impulse sound.
3. The noise meter can be divided into broadband noise, narrowband noise and noise with prominent pure tone components from the frequency characteristics of sound source or sound field.
4. Noise meters can be divided into precision measurement, engineering measurement and noise census from the accuracy of measurement requirements.
What are the factors affecting the noise meter?
1. From the measurement object, it can be divided into the characteristic measurement of environmental noise (sound field) and the measurement of sound source characteristics.
2,From the time characteristics of the sound source or sound field, it can be divided into steady state noise measurement and non-steady state noise measurement. Non-stationary noise can be divided into periodic change noise, irregular change noise and impulse sound.
3,From the frequency characteristics of the sound source or sound field, it can be divided into broadband noise, narrowband noise and noise containing prominent pure tone components.
4,From the precision of measurement requirements, it can be divided into precision measurement, engineering measurement and noise census.
