What are the types of Direct Reading Spectrometer?

直读光谱仪可以有不同的划分方法。

A direct reading spectrometer can be divided into different methods.

根据光栅所处的环境不同，可分为真空型和非真空型直读光谱仪，其中非真空型直读光谱仪又可分为空气型直读光谱仪（无法测定真空紫外波段的C、P、S、As等元素含量）和充惰性气体型直读光谱仪（可以测定真空紫外元素）；

According to the grating is different, can be divided into the vacuum and non vacuum direct reading spectrometer, including non vacuum direct reading spectrometer can be divided into air spectrometer (not by vacuum ultraviolet C, P, S, As and other elements) and inert gas type direct reading spectrometer (can determination of vacuum ultraviolet element);

根据仪器的结构不同，又可分为多道直读光谱仪和全谱直读光谱仪，其中前者多采用光电倍增管作为检测器，后者多采用阵列检测器（如CCD）。

According to the different structure of the instrument, it can also be divided into multichannel direct reading spectrometer and full spectrum direct reading spectrometer. The former mostly uses photomultiplier tube as detector, and the latter uses array detector (such as CCD).