Development of High Sensitivity Illuminance Meter for Measurements in Lighting Engineering and Photometry
Eduard V. Kuvaldin *
S. I. Vavilov State Optical institute, St. Petersburg, Russia.
*Author to whom correspondence should be addressed.
Abstract
Possible ways of solving the main problems arising in development, manufacture and calibration of high-sensitivity Illuminance meters are considered. Methods of reducing the lower limit of measurement of Illuminance to 10-5 lux are proposed. Errors of correcting light filters of different manufacturing methods are estimated. The calculations of measurement errors of illuminance from modern energy-saving lamps and LEDs are made.
Keywords: Illuminance meter, responsibility, correcting filter, calibration, measurement errors