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看谱分析装换电极或试样,由于电极与试样相对位置改变不能经常保持目镜视场最明亮;而且,电弧摆动也会引起谱线亮度变化而影响看谱分析的准确度。因此,迅速调整视场亮度机件是每台看谱镜的必具装置. 双台式看谱镜的调光有两个方法:(一)将两片聚光镜分别装在偏心套上,转动哪个偏心套就对哪条光路调光;(二)活动载物台。国产双台式WX-3型看谱镜不适宜采用第一个方法调光,原因是仪器后侧聚
Look at the spectral analysis of the electrode or the sample change, due to the relative position of the electrode and the sample can not always keep the eyepiece is the most bright field of view; and, arc swing will also cause spectral brightness changes affect the accuracy of spectral analysis. Therefore, the rapid adjustment of the field of view of the brightness of the machine is required to see each spectroscope device.Double desktop spectroscope to see the dimming in two ways: (a) the two condenser were mounted on the eccentric sleeve, which eccentric rotation Which set of light on the light dimmer; (B) activities stage. Domestic dual desktop WX-3 type spectroscope is not appropriate to use the first method of dimming, because the back of the instrument poly