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。
A simple method for automatical adjustment of light intensity on model 721 spectrophotometer is introduced.
介绍了一种实现721型分光光度计光强自动调节的简便方法。
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