Noise Measurement Device Name
When you measure noise levels with a sound level meter you measure the intensity of noise called decibel units db.
Noise measurement device name. The measurement range can identify noises from 30 dba to 130 dba which is the most common variety of noise levels a normal person is likely to encounter at work or in their everyday life. A sound level meter is used for acoustic sound that travels through air measurements. Measuring noise levels and workers noise exposures is the most important part of a workplace hearing conservation and noise control program. It helps identify work locations where there are noise problems employees who may be affected and where additional noise measurements need to be made.
A decibel meter is a measuring instrument used to assess noise or sound levels by measuring sound pressure. There is a data hold function that allows you to check previous readings to compare and contrast while the large lcd screen makes reading the. Sound level meter device for measuring the intensity of noise music and other sounds a typical meter consists of a microphone for picking up the sound and converting it into an electrical signal followed by electronic circuitry for operating on this signal so that the desired characteristics can be measured. Pce 322a is a handheld portable professional class 2 sound level meter or decibel db meter with built in data logging or data recording functionality.
Noise measurements noise measurements of linear devices or non frequency translating to measure a typical electronic sub assembly as an amplifier a passive network or any other active device assemblies that are not frequency translating the operator has several methods available to make a noise measurement. This pce 322a sound level meter comes with a pce sc 42 acoustic calibrator. Audio systems and broadcasting. Noise measurement can also be part of a test procedure using white noise or some other specialised form of test signal in audio systems and broadcasting specific methods are used to obtain subjectively valid results in order that different devices and signal paths may be compared regardless of the inconsistent spectral distribution and temporal properties of.
A sound meter uses a display with a decibel range and resolution to approximate to the ear s dynamic range usually the upper range rather than the quiet part. The indicating device is usually a meter calibrated to read the sound level in. The planning the strategy and the practical aspects of a noise survey are discussed in chapter 7. It is commonly a hand held instrument with a microphone the best type of microphone for sound level meters is the condenser microphone which combines precision with stability and reliability the diaphragm of the microphone responds to changes in air pressure caused by sound waves.
Many types of measuring systems can be used for the measurement of sound depending on the purpose of the study the characteristics of sound and the extent of information that is desired about the sound. Often referred to as a sound pressure level spl meter decibel db meter noise meter or noise dosimeter a sound level meter uses a microphone to capture sound.