Higher surveying

Assignments  :

Unit 5 : Hydrographic surveying

NOTES :

UNIT-2 Adjustment Computations
Notes #1 Sources of error , Definitions, Method of differences, Normal equations, most probable value 

UNIT-3 Tacheometric Surveying
Notes#1 Definitions Derivation of K & C, EDM, Total Station, Fixed hair, Subtense method, Tangential method.

SLIDES:

Unit 1 Triangulation & Trilateration
Slide 1 Principle and classification of  Triangulation  System
Slide 2 Triangulation Complete

Unit 2 Adjustment computations

Slide 1-Precision , Accuracy , Sources & types of errors, Normal distribution curve, Standard deviation, variance, Most probable value, most probable error, maximum error

Slide 2 weight of an observationRules for assigning weights to the observationLaws of Weight

Slide 3 types of equationnormal equation, method of least squares, most probable value

Slide 4 Tutorial on Most Probable Values

Slide 5 Method of normal equations,Method of differences.Method of correlates.Numericals on Least square

Slide 6 - Most probable errors, propogation of errors , Questions of Levelling type 

Unit 3 Tacheometric Surveying

Slide 1 - Definitions , Advantages, Instruments used in Tacheometry

Slide 2 Fixed hair, Movable hair, Subtense method, Tangential Method , Derivation of Tacheometric constant K & C

Slide 3 -Derivation of Distance and Elevation formula when line of sight is inclined upwards & downwards, (staff is held perpendicular to suface)

Slide 4 - Subtense Method / Error Correction / Subtense Bar

Slide 5 - Laser Distance Meter & Total Station

Slide 6 - Construction and use of Reduction Tacheometers, Jeff cott tacheometer, Hammer Funnel auto reduction tacheometer

Slide 7- Electronic distance measuring devices, Range finders

Unit 5 Hydrographic surveying

Slide 1 - Introduction, Tide Gauges, Instruments for Sounding

Slide 2 -  Methods of locating soundings
Slide 3 -  Methods of Plotting of soundings and numericals