在使用紫外可见分光光度计进行分析工工作时,仪器能给出λ-A或λ-T曲线。其中λ(波长)的准确性极为重要,因此,在仪器内必须设置线性的波长扫描机构,使光栅转动时,在出射狭缝输出波长变化为线性的单色光,以保证曲线的准确性。一般推动光栅转动大多采用杠杆机构,它的主要特点是结构简单,色散元件转动精 The instrument can give a λ-A or λ-T curve when using an UV-visible spectrophotometer for analysis. The accuracy of λ (wavelength) is very important. Therefore, a linear wavelength scanning mechanism must be installed in the instrument so that the output wavelength of the exit slit changes to linear monochromatic light when the grating is rotated to ensure the accuracy of the curve. Most commonly used to promote the grating rotation lever mechanism, its main feature is the simple structure, fine dispersion components rotation