Method for Evaluating the Effect of the Design and the Environmental Conditions of the Manufacturing Cells toImprove Work Performance
Table 1
Ergonomic factors, measurement instruments, and measurement method.
Ergonomic factor
Measurement instrument
Measurement method
Lighting levels
Lux meter
The measurements of the lighting are made at the points indicated in the layout at the height of the work plane, trying not to cast shadow on the lux meter.
Noise levels
Noise level meter, which allows measuring sounds between 35 and 130 decibels with frequencies between 31.5 Hz and 8 KHz and a precision of 2 decibels.
The measurements of the maximum sound intensity were made at the points indicated in the layout one meter from the height of the work plane, and the results were noted. Care was taken not to interfere with the body and the imaginary line that connects the sound sources with the sound level meter's microphone. Also, the position of the sound level meter at the measurement points was always vertical with the pick-up microphone up. The value is read only when the indicator display stabilizes.
Thermal environment
Thermometer, which allows measuring the temperature in °C and the humidity percentage of the work area to determine if there is a risk of thermal stress.
The temperature and humidity are taken at the points indicated in the layout at the height of the work plane.
