Ultraviolet light measuring chip and ultraviolet light sensor using the same

Abstract

An ultraviolet light measuring chip and a sensor are provided simple in structure, easy to handle and of high precise measurement. The chip comprises a first reaction chamber for detection of total received light and a second reaction chamber for detection of ultraviolet-cut received light. The first and second chambers contain or hold therein counter and reference electrodes immersed in coexistent electrolyte solution containing quinone, organic solvent and electrolyte the solution being also contained the chambers. The first chamber has a total light transmission window and a first working electrode immersed in the electrolyte solution. The second chamber has an ultraviolet-cut light transmission window and a second working electrode immersed in the electrolyte solution. The sensor is adapted to sweep voltages of the first and second working electrodes to the respective reference electrodes, detect respective currents and calculate out an amount of ultraviolet light from difference of the detected currents.