Introduction to Surveying |
Contents
BASIC SURVEY MEASUREMENTS | 4 |
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 backsight and foresight bench marks calculated centimetres circle reading clamp clockwise closure compass computed coordinates correction decimetres deflection angle described in Art determined difference in elevation direction theodolite distance measuring dumpy level engineer's transit equipment example eyepiece field foresight distances graduated head tapeman horizontal angles horizontal axis horizontal circle horizontal distance least count level tube leveling screws line of sight magnetic mean meridian method metres millimetres notes observed optical plummet plane table position procedure random recorded reflector refraction relative precision rod reading rotated scale shown in Fig significant figures slope distance spirit level stadia hairs stadia interval standard deviation surveyor surveys systematic errors tacheometer tacheometry taken tangent screw tape length target telescope temperature tension traverse station tripod turning point usually vertical angle vertical axis vertical circle vertical vernier zenith angle zero