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A MODERN ANALOGUE INSTRUMENT FOR MEASURING LIGHT INTENSITY
F Haeger, P Marx
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Abstract
A PRECISION ANALOGUE LUX METER WHICH IS NETWORK-INDEPENDENT AND HAS A MEASURING VALUE INDICATOR AND A SEPARATE MEASURING HEAD IS DESCRIBED, WHICH ENABLES LIGHT INTENSITY TO BE MEASURED ACCURATELY. THE EQUIPMENT CAN BE USED WHEN PRECISE MEASUREMENT OF LIGHT INTENSITY HAS TO BE MADE WITH A LIGHT-WEIGHT PORTABLE INSTRUMENT. IT IS THOUGHT THAT IT WILL BE USEFUL FOR DETERMINING THE QUALITY OF STREET LIGHTING AND OTHER TYPES OF LIGHTING.