A noise dosimeter is a monitoring device used to measure and record an individual's exposure to noise over a period of time, typically during an eight-hour work shift. It is a compact, wearable device that is attached to an individual's clothing or body and measures the sound pressure level (SPL) in decibels (dB) at regular intervals. The data collected by the dosimeter can be used to determine an individual's noise exposure level (NEL) and whether they have exceeded the recommended noise exposure limit.
Noise dosimeters typically include a microphone for measuring the sound level, a processing unit for analyzing the data, and a display for showing the results. Some models also include additional features such as data logging, octave band analysis, and real-time sound level monitoring. They are commonly used in industries such as manufacturing, construction, and transportation, where workers are exposed to high levels of noise, and hearing protection, is required.
Using a noise dosimeter is important for protecting workers from noise-induced hearing loss, which can be a serious occupational hazard. It allows employers to assess and manage the risk of noise exposure in the workplace, and ensure that workers are using appropriate hearing protection when necessary.