Influencing factors of noise meter and precautions for use
Classification of Noise Meters
From the perspective of measuring objects, it can be divided into the measurement of environmental noise (sound field) characteristics and the measurement of sound source characteristics.
2. Based on the temporal characteristics of the sound source or field, it can be divided into steady-state noise measurement and non-stationary noise measurement. Unsteady noise can be divided into periodic variation noise, irregular variation noise, and pulse sound.
3. From the frequency characteristics of the sound source or field, it can be divided into broadband noise, narrowband noise, and noise containing prominent pure tone components.
From the perspective of measurement accuracy requirements, it can be divided into precision measurement, engineering measurement, and noise survey.
Factors affecting noise meters
1. From the perspective of measuring objects, it can be divided into the measurement of environmental noise (sound field) characteristics and the measurement of sound source characteristics.
2. According to the temporal characteristics of the sound source or field, it can be divided into steady-state noise measurement and non-stationary noise measurement. Unsteady noise can be divided into periodic variation noise, irregular variation noise, and pulse sound.
3. According to the frequency characteristics of the sound source or field, it can be divided into broadband noise, narrowband noise, and noise containing prominent pure tone components.
4. According to the required accuracy of measurement, it can be divided into precision measurement, engineering measurement, and noise survey.
Precautions for using a noise meter
1. Before use, read the instruction manual to understand the usage and precautions of the instrument.
2. Caution when installing batteries or external power sources, do not reverse connect. If not in use for a long time, the battery should be removed to prevent leakage and damage to the instrument.
3. Do not disassemble the microphone to prevent it from being thrown or dropped, and place it properly when not in use.
4. The instrument should be avoided from being placed in places with high temperature, humidity, sewage, dust, and air or chemical gases containing high levels of hydrochloric acid and alkali.
5. Do not disassemble the instrument without authorization. If the instrument is not functioning properly, it can be sent to a repair unit or factory for maintenance.
6. Taiwan Taishi noise meter should be waterproof to prevent falling from high altitude.
