surveying instruments

Ahmadi khan

1. Week No.2
Surveying-I
Lecture No.2
B-Tech 2015
By:
Engr. Shams Ul Islam
Lecturer, Civil Engg. Department
CECOS University Peshawar

2. Surveying Instruments
Differenttypeofinstrumentsusedinsurveyingare
•Chain
Chainisaninstrumentusedtomeasurelineardistancein
surveying.
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3. •Tape
Accuratemeasurementsarecarriedoutthroughtapeinsurvey.
•Clinometer
Usedtomeasureangleforinclineddistance.
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Engr.Shams Ul Islam ([email protected])

4. •Planimeter
ThePlanimeterisadraftinginstrumentusedtomeasuretheareaof
agraphicallyrepresentedplanarregion.Theregionbeingmeasured
mayhaveanyirregularshape,makingthisinstrumentremarkably
versatile.
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Engr.Shams Ul Islam ([email protected])

5. •Compass
Acompassisaninstrumentusedfornavigationandorientation
thatshowsdirectionrelativetothegeographic"cardinaldirections
i.e.(North,South,EastandWest)",or"points".
Compassareofdifferenttypes.
1.TroughCompass
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Engr.Shams Ul Islam ([email protected])

6. 2.PrismaticCompass
ThisPrismaticCompassisusedforthepurposeofmeasuring
magneticbearings.
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Engr.Shams Ul Islam ([email protected])

7. Surveyor Compass
This compass is also used fro measuring bearing with the
North and south poles. The bearing are shown in quadrants.
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Engr.Shams Ul Islam ([email protected])

8. •RangingRods
Theserodsareusedinsurveyingforstationingandrangingof
lines.
•Reflector/Prism
Usedintotalstation
Surveyingasshown
infigure
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Engr.Shams Ul Islam ([email protected])

9. •Bags
Usedforkeepingtheinstruments
likeprismetc.safe.
•FieldBook
Usedforenteringthe
fielddata(measurements).
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Engr.Shams Ul Islam ([email protected])

10. •Autolevel
Usedinlevellingprocessofsurvey.
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Engr.Shams Ul Islam ([email protected])

11. •Staffrod/Levellingrods
Usedwithautolevelinmeasuringthelevelsofdifferentpointsorobjects.
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Engr.Shams Ul Islam ([email protected])

12. •Theodolite
Usedformeasuringhorizontal
andverticalangles.
•TotalStation
Usedformeasuringangles,
Coordinates,levellingetc.
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Engr.Shams Ul Islam ([email protected])

13. •Tripod
UsedforsettingoutofInstrumentslikeAutolevel,theodolite,
totalstationsetc.
•Pegs
Usedforstationspointor
usedinsettingofcurves.
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Engr.Shams Ul Islam ([email protected])

14. •Scales
Usedinplottingofsurveyingworks
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Engr.Shams Ul Islam ([email protected])

15. •PlanTable
Usedinplantablesurveying
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Engr.Shams Ul Islam ([email protected])

16. •Plumbbob
Usedforverticality
andpointcentering.
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Engr.Shams Ul Islam ([email protected])