Plane Surveying |
Contents
INTRODUCTION | 1 |
OPERATING AND ADJUSTING THE INSTRUMENTS | 41 |
LINEAR MEASUREMENTS AND CHAIN SURVEYING | 65 |
Copyright | |
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Common terms and phrases
accuracy adjustment aerial aircraft alidade altitude angle angular approximately axis base line bubble C₁ calculated camera catenary centre circular clamp clinometer clothoid co-ordinates coincide computed contour correction cross-hairs curve datum Decca detail determined diapositives difference direction distance distortion dumpy level equation error eyepiece figure flying height frequency geodetic Geodimeter gradient graphical horizontal instrument intersection invar Kerr cell length lens levelling screws light conductor line of collimation line of sight mark mean measured method metres micrometer multiplex observations obtained operator optical overlap parallax perpendicular Photogrammetric photographs plane plane tabling planimetric plate plotting machine principal point prism procedure projectors radial ranging pole rays relative orientation rotated scale sextant signal spirit level stadia station stereoscopic straight surface survey surveyor tacheometric tangent screw tape telescope Tellurometer theodolite tilt traverse triangulation tripod Troughton & Simms usually vernier vertical circle zero