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結構特點
照準儀采用大通光孔徑內調焦式望遠鏡,整個鏡筒全部密封,光學系統視場清晰明亮,象質良好。讀數顯微鏡,豎直度盤,平行尺劃線,摩擦止動等都提高了儀器的性能,觀測舒適,大大減輕了測量人員的勞動強度。
儀器的用途和精度
| 1.型號 | DP3 | DP5 | DP7 | DP10 |
| 2.水準器 | 30”/2mm | 60”/2mm | - | - |
| 豎直度盤水準器角值 | ||||
| 橫軸長水準器角值 | 60”/2mm | |||
| 基尺園水準器角值 | 8”/2mm | 8”/2mm | 8”/2mm | |
| 3.度盤 | 1° | 1° | 1° | 1° |
| 豎直度盤值 | ||||
| 游標格值 | 5″ | 5″ | 10″ | 10″ |
| 讀數放大板倍率 | 35X | 2X | ||
| 4.行平尺 | 320mm | 260mm | 260mm | |
| 長度 | ||||
| 移動范圍 | 0-35mm | 0-28mm | 0-25mm | |
| 5.圖板尺寸 | 500x600m㎡ | 500x600m㎡ | 500x600m㎡ | 500x600m㎡ |
| 600X600 m㎡ | 600X600 m㎡ | 600X600 m㎡ | 600X600 m㎡ | |
| 6.儀器重量 | 2.3Kg | 1.5 Kg | 1.0 Kg | 1.0 Kg |
| 照準儀凈重 | ||||
| 儀器總重 | 9.5 Kg | 8.5 Kg | 8 Kg | 8 Kg |

