Developing a dosimetric indicator for monitoring exposure to noise at workstations
Leszek Morzyński Ph.D. (Eng.)
The task consisted in designing and producing a model of a dosimetric indicator for monitoring exposure to noise at workstations. An LED diode indicates exceeding any admissible value of noise. Then, an information series (100 pcs) of dosimetric indicators for monitoring exposure to noise at workstations was designed and produced. Developing the indicator involved construction work on miniaturizing the model indicator. At the same time necessary changes in the construction of the indicator were introduced. The last stage of the task involved developing a modified version of the dosimetric indicator for monitoring exposure to noise at workstations; an information series (50 pcs) of the indicators was produced. Introducing changes in the electric construction of the indicator also resulted in changes that were introduced into the software of the indicator. It was also necessary to determine again the relationship between the value of sound pressure level and the output value form the analogue/digital microcontroller. Work resulted in a final version of the dosimetric indicator. This indicator is a portable device 76 x 58 x 19 mm (H x W x D), based on the MSP43oF2013 microcontroller, which processes measurement data and signals exceeding the value of the maximal admissible intensity. The dosimetric indicators that were designed and produced in the second information series (50 pcs) were calibrated.
Department of Vibroacustic Hazards