Design and realization of lamp life test instrument

This paper introduces an instrument and method for lamp life test. The design of the instrument is divided into three steps： the oyerall design scheme, hardware circuit design and host machine programming. The instrument contains luminance and temperature sensors which can measure luminance of the lamp lighting and environment temperature in the instrument body. Then, the measure data can be transmitted to PC via the wireless transceiver modules for real-time monitoring. The luminance degradation curve based on the measure data is used to reckon the life of the lamp. In the end, the method for processing measurement data is given.