Introduction to Surveying |
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Page 68
... Tacheometry Tacheometry includes stadia with transit and stadia rod ; stadia with alidade , plane table , and rod ; distance wedge and horizontal rod ; and subtense bar and theodolite . The stadia method , described in detail in Chap ...
... Tacheometry Tacheometry includes stadia with transit and stadia rod ; stadia with alidade , plane table , and rod ; distance wedge and horizontal rod ; and subtense bar and theodolite . The stadia method , described in detail in Chap ...
Page 259
James McMurry Anderson, Edward M. Mikhail. CHAPTER 7 Stadia and tacheometry 7.1 . General Tacheometry is the procedure by which horizontal distances and differences in elevation are determined indirectly using subtended intervals and ...
James McMurry Anderson, Edward M. Mikhail. CHAPTER 7 Stadia and tacheometry 7.1 . General Tacheometry is the procedure by which horizontal distances and differences in elevation are determined indirectly using subtended intervals and ...
Page 273
... tacheometry . In self - reducing , optical- reading tacheometers , the fixed stadia cross hairs are replaced by three variable slightly curved lines as illustrated in Fig . 7.8 for one style of tacheometer . These curves are etched on ...
... tacheometry . In self - reducing , optical- reading tacheometers , the fixed stadia cross hairs are replaced by three variable slightly curved lines as illustrated in Fig . 7.8 for one style of tacheometer . These curves are etched on ...
Contents
differential or spirit leveling 5 5 Trigonometric leveling | 5 |
the engineers transit 6 36 Horizontal angles with the repeating theodolite | 6 |
Other survey operations 362 | 9 |
Copyright | |
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Common terms and phrases
accuracy adjustment alidade angular azimuth bench marks calculated catch point center line circle reading clamp computed contour contour lines control points correction cross hair cross sections curve decimetre deflection angle described in Art determined difference in elevation dumpy level electronic engineer's transit equation equipment example field Figure geodetic graduated grid head tapeman horizontal angles horizontal axis horizontal circle horizontal distance instrument laser least count level bubble level tube leveling screws line of sight magnetic meridian method metres notes observed offset operator photogrammetric photographs plane table plotted plumb position procedure projection random recorded relative precision rod reading rotated scale shown in Fig slope distance spirit level stadia interval standard deviation surface surveyor surveys systematic errors tacheometer tangent screw tape length target telescope terrain theodolite triangle tripod usually vernier vertical angle vertical axis vertical circle zenith angle zero