“我想用一块Arduino电路板做一台LED的分光光度计，”考埃尔说，“有人曾经做过，但我想做得更好些。”
"I want to build an LED spectrophotometer with an Arduino," Cowell says. "People have done it before, but I want to make it better."
详细地描述了它的主要部份——驱动装置，测角装置、红外光度计的工作原理和电路特点。
Its major parts-the operating principle and circuit feature of drivers, the equipment for measurement of telescope position and infrared photometer are introduced.
介绍了721型分光光度计，灯电源电路和稳压电路故障现象，分析了故障产生的原因，提供了排除故障办法，对该仪器维修提供了借鉴的经验。
This paper introduced some common faults of 721 spectrophotometer, found out the cause of formation, and presented fixing method, it may be used for instrument maintenance for reference.
用自行设计的接口电路将8031单片机与H＿508原子吸收分光光度计连接，以很低的成本使仪器计算机化，灵敏度提高且效果良好。
A new interface was designed for connecting a model 8031 chip microprocessor with H_508 atomic absorption spectrometer and the computer control of the AAS instrument was realized with very low cost.
本文介绍一种新型的对数转换电路，线路简单，调试方便，应用于数字分光光度计中取得了较好的效果。
A new logarithmic transfer circuit is described. It is simple and easily to adjust and useful for digital spectrophotometers.
柱面散光轴位角进行手动测量，数码显示的数字化屈光度测量仪。本仪器采用特殊的处理电路，消除了外来噪声产生的误触发脉冲及输出错误积累而引起的位置偏移。
This instrument has a rotary encoding and raster and it has a special processing circuit not only eliminating trigger pulse case by noise but also clearing up position accumulates error.
用这种电路替代原721型分光光度计中的光强调节电位器即可实现自动调节光强。
While substituting the regulation-resistor for light intensity adjustment on the spectrophotometer with this device, automatic adjustment of light intensity is realized.
用这种电路替代原721型分光光度计中的光强调节电位器即可实现自动调节光强。
While substituting the regulation-resistor for light intensity adjustment on the spectrophotometer with this device, automatic adjustment of light intensity is realized.
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