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We will have quick view on different types of survey based on the instruments:
- Chain Survey
- Compass Survey
- Plane table survey
- Levelling
- Theodolite Survey
- Tacheometric Survey
- Photogrammetric Survey
1. Chain Survey
Chain survey is a method of surveying that involves linear measurement in ground.Â
Principle behind chain surveying      : Triangulation
Instrument used in Chain Surveying   : Measuring Chain
Read More on: What is Chain Surveying?
2. Compass Surveying
Compass surveying is a method of surveying that is used to measure survey lines and their directions from north, south , west and east. Hence, these directions are measured in horizontal angles called as bearings. Here, other than the measurement of horizontal angles, linear measurements are taken.
Principle behind compass surveying         :Traversing
Instrument used in compass surveying    : Prismatic Compass for Horizontal bearing measurement and Measuring chain for linear measurements.
Read More on:Â What is Compass Surveying?Â
3. Plane Table Survey
A plane table survey is a graphical method of survey. In this method, we take the field observations and directly plot in on the paper at the field itself.
Principle of Plane table surveying: Parallelism
Instruments used for Plane table surveying: Alidade, plumb bob, spirit level, trough compass and drawing sheet.
4. Levelling
Levelling is a method of surveying in which the relative vertical heights of points are determined with respect to a known surface or point.
Instruments used: A dumpy level and a graduated staff
5. Theodolite Survey
Theodolite survey is a method of survey that is used to locate the position of a point using vertical and horizontal angle measurement.Â
Principle    :Trigonometry
Instrument : Theodolite
6. Tacheometric Surveying
Tacheometric survey is a rapid and economical surveying by which the horizontal distanced and the differences in elevation are determined indirectly using a theodolite and a graduated rod.
Principle         :Principle of Isosceles Triangle
Instrument Used: Tacheometer
Read More On: Types of Surveying Based on MeasurementÂ
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Tags: Foundation, Construction
Surveying