Development of the prevalent type plastic kind distinction machine using the near-infrared spectrum by application of artificialintelligence

开发了由卤素光源（近红外光源）、光学斩波器、单色计、光学传感器、前置放大器和锁紧放大器（实现更高信噪比的专用放大器）组成的塑料品种识别机，成本价约为20万日元。该设备由最小的部件组成，用于区分塑料种类。虽然通过这台机器识别的塑料品种数量约为13种，但国内塑料总产量的90%左右被识别。

The distinction machine for the plastic species, composed by a halogen light source(near-infrared light source), an optical chopper, a monochrome meter, an optical sensor, a preamplifier and the lock in amplifier(special amplifier for realizing higher signal to noise ratio) was developed with the cost price, about 200, 000 yen.This equipment is composed by the least parts for the distinction of plastic species.Although the number of the plastic species, which are identified by this machine is about 13, about 90% of the domestic total production of plastics is identifyed.