What is a dosimeter for sound?

Put simply, a noise dosimeter is a specialised type of sound level meter that is used to measure personal noise exposure levels. They can also be used when it isn’t safe or practical to use a full-sized sound level meter, such as in areas with a high fire risk or in confined spaces.

How do you use a dosimeter for sound?

How to Use a Sound Level Meter

  1. place the sound level meter at a sufficient distance from any obstacles or reflectors.
  2. place the microphone of the sound level meter about 1,3 – 1,5 m above the ground.
  3. place the microphone of the sound level meter in the direction of the sound source.

What is a dosimeter survey?

Dosimeters can be in the form of a sticker, badge, pen/tube type, or even a digital readout. They all measure the total accumulated amount of radiation to which you were exposed. Similar to the odometer of a car, they measure an accumulation of units.

Is there a device to measure noise?

A decibel meter is a measuring instrument used to assess noise or sound levels by measuring sound pressure.

What is the difference between a sound level meter and a dosimeter?

Use Sound Level Meters when you need to know the noise level of a particular task or process, or how noisy a piece of machinery or area is. Use Noise Dosimeters when you need to find out the direct noise exposure of an employee.

Can a dosimeter measure noise?

Noise Measurement Noise dosimeters measure and store sound pressure levels (SPL) and, by integrating these measurements over time, provide a cumulative noise-exposure reading for a given period of time, such as an 8-hour workday. Dosimeters can function as personal or area noise monitors.

Does a dosimeter make noise?

Noise dosimeters are manufactured to IEC 61252, the international standard for dosimeters. IEC 61252 “Type 2” regulations require a field calibrator of a dosimeter before each use. Field calibrators produce a noise signal, normally a tone of 1 KHz at 114 dB.

Where should a sound dosimeter be placed?

OSHA requires that the dosimeter microphone be placed within a two-foot diameter sphere surrounding the head when conducting the monitoring. It also states that it should be placed in the employees hearing zone (CPL. 2-2.35A).

What is acceptable noise level?

Decibel Level​ Sounds at or below 70 dBA are generally considered safe. Any sound at or above 85 dBA is more likely to damage your hearing over time. Researchers have found that people who are exposed over long periods of time to noise levels at 85 dBA or higher are at a much greater risk for hearing loss.