【摘要】 主要介绍一款应用于水质监测的便携式水中有机物快速测定仪的研制工作。以水体中有机物对紫外光有强烈吸收,并符合朗伯-比尔(Lambert-Beer)定律的应用为仪器工作的基本原理;自主创新设计出笔型汞灯点灯电路等关键结构,利用双光束测定方式和高度集成CPU的信号处理系统等措施优化仪器的软硬件环境,实现了仪器模块化、小型化的目标。通过使用该仪器的实例测试表明,仪器具有操作简单、检测快速、性能稳定和方便携带等优点。更多还原

【Abstract】 This paper introduced the development and application of a portable ultraviolet(UV)photometer for the examination of organic matter in water.It is based on the theory that most organic compounds commonly found in water and wastewater strongly absorb ultraviolet radiation.This instrument applies a method(UV254) consistent with TOC、COD and other methods.The instrument uses a microcomputer chip for its core,a keyboard for operating,a LCD for display,and a built-in mini-printer for printing the results.It can store the working curves of 80 kinds of different water samples for the use.This instrument can be widely applied to surface water, ground water,domestic sewage and industrial waste water.更多还原