Large high precision center partial measurement instrument adopt double light route system,can test and correct partiality for visible optical system, meanwhile assemble and adjust infrared light optical system;Glazing road system assemble gratingruler and LCD,used for showing rail moving distance;assemble electric rail under optical path,used for controling light route extension device,and digital show the moving distance;measuring head adopt internal focusing device for centring,moreover equiped with digital showing two-micrometer eyepiece,make operating more clear,right,easy and flexiable.
Main parameter：
No | Name | Specification |
1. | measurement head focusing objective focusing distance | 206.265mm |
2. | working distance for measurement head objective | -∞～-289mm，+441mm～+∞ |
3. | two micrometer eyepiece magnification rate | 15times |
4. | Measurement range for two micrometer eyepiece
| X direction：0～8mm，y direction:0～8mm |
5. | Index value for digital double micrometer eyepiece
| 0.001mm |
6. | workbench diameter | Φ600mm |
7. | standard configration permited measured objective weight | ≯300kg |
8. | standard configuration vertical axis swaying | ≯2＂ |
9. | standard configuration vertical axis jumping | ≯2μm |
10. | non straightness for column rail | ≯0.1mm |
11. | move on light route extention, reflector sway | ≯30＂ |
12. | sphere radius measurement range | -∞～-1mm +1mm～+∞ |
13. | permited measured apparatus height | ≯1m |
14. | workbench flatness | ≯20μm |
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