0
MODERNMODERN
SURVEYSURVEY
(FAMILARISATION WITH(FAMILARISATION WITH
EQUIPMENTS)EQUIPMENTS)
Modern equipmentsModern equipments
 EDM – Electronic distance measurement eqp.EDM – Electronic distance measurement eqp.
...
EDMEDM
 Now separate EDM are not very popular , insteadNow separate EDM are not very popular , instead
Total Station whic...
Most total stations use a purpose-built glassMost total stations use a purpose-built glass
PorroPorro prismprism as the re...
Hand held EDMHand held EDM
 Very handy,Very handy,
 Cheap,Cheap,
 Can be used withCan be used with
accuracy of 10mm ora...
Early age levelsEarly age levels
 Early age levels areEarly age levels are
 Dumpy levels.Dumpy levels.
 Tilting levels....
AUTO LEVELAUTO LEVEL
 Now most commonlyNow most commonly
used levellingused levelling
instruments are - Autoinstruments a...
 With auto level:-With auto level:-
 Survey work can be done fast,Survey work can be done fast,
 Less chances of error,...
Digital levelDigital level
 They are not popular instead autoThey are not popular instead auto
levels are more extensivel...
TOTAL STATIONTOTAL STATION
 Basic Principle
A total station integrates the functions of a theodolite
for measuring angles...
Features:-Features:-
 Total solution for surveyingTotal solution for surveying
work,work,
 Most accurate and userMost ac...
 On board memory to store data,On board memory to store data,
 Compatibility with computers,Compatibility with computers...
 New tNew total stationsotal stations have atmospherichave atmospheric
correction, and auto-focus. In addition, thesecorr...
USES:-USES:-
Total Stations can be used for:
 General purpose angle measurement
• General purpose distance measurement
• ...
Factors influencing the use of Total Stations:
• A clear line of sight between the instrument
and the measured points is e...
Auxiliary Equipment Required
• Targets or Prisms to accurately define the
target point of a direction measurement.
• A dat...
 ROBOTICROBOTIC TSTS
 Display at target also,Display at target also,
 No need of operator onNo need of operator on
stat...
THANKTHANK
SS
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Modern Surveying Equipment Presentation

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Modern Surveying Equipment presentation for members of Land Surveyors United http://landsurveyorsunited.com

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Transcript of "Modern Surveying Equipment Presentation"

  1. 1. MODERNMODERN SURVEYSURVEY (FAMILARISATION WITH(FAMILARISATION WITH EQUIPMENTS)EQUIPMENTS)
  2. 2. Modern equipmentsModern equipments  EDM – Electronic distance measurement eqp.EDM – Electronic distance measurement eqp.  Auto level.Auto level.  Digital level.Digital level.  Total station.Total station.  GPS – global positioning system.GPS – global positioning system.
  3. 3. EDMEDM  Now separate EDM are not very popular , insteadNow separate EDM are not very popular , instead Total Station which have in built EDM is beingTotal Station which have in built EDM is being used .used .  Measurement of distance is accomplished with aMeasurement of distance is accomplished with a modulatedmodulated microwavemicrowave oror infraredinfrared carrier signal,carrier signal, generated by a small solid-state emitter within thegenerated by a small solid-state emitter within the instrument's optical path, and bounced off of theinstrument's optical path, and bounced off of the object to be measured. The modulation pattern inobject to be measured. The modulation pattern in the returning signal is read and interpreted by thethe returning signal is read and interpreted by the onboard computer in the EDM. The distance isonboard computer in the EDM. The distance is determined by emitting and receiving multipledetermined by emitting and receiving multiple frequencies, and determining the integer numberfrequencies, and determining the integer number ofof wavelengthswavelengths to the target for eachto the target for each frequencyfrequency..
  4. 4. Most total stations use a purpose-built glassMost total stations use a purpose-built glass PorroPorro prismprism as the reflector for the EDMas the reflector for the EDM signal, and can measure distances out to a fewsignal, and can measure distances out to a few kilometers, but some instruments arekilometers, but some instruments are "reflectorless", and can measure distances to"reflectorless", and can measure distances to any object that is reasonably light in color, outany object that is reasonably light in color, out to a few hundred meters. The typical Totalto a few hundred meters. The typical Total Station EDM can measure distances accurateStation EDM can measure distances accurate to about 3 millimeters or 1/100th of a foot.to about 3 millimeters or 1/100th of a foot.
  5. 5. Hand held EDMHand held EDM  Very handy,Very handy,  Cheap,Cheap,  Can be used withCan be used with accuracy of 10mm oraccuracy of 10mm or so,so,  Useful for remoteUseful for remote measurements likemeasurements like contact wire etc.,contact wire etc.,
  6. 6. Early age levelsEarly age levels  Early age levels areEarly age levels are  Dumpy levels.Dumpy levels.  Tilting levels.Tilting levels.
  7. 7. AUTO LEVELAUTO LEVEL  Now most commonlyNow most commonly used levellingused levelling instruments are - Autoinstruments are - Auto level.level.  Auto level, as nameAuto level, as name sounds it has a autosounds it has a auto level compensator andlevel compensator and corrects automaticallycorrects automatically if instrument goes outif instrument goes out of level within it’sof level within it’s range.range.
  8. 8.  With auto level:-With auto level:-  Survey work can be done fast,Survey work can be done fast,  Less chances of error,Less chances of error,  Magnification available is more,Magnification available is more,  Range is more,Range is more,  Image is erect so less chances ofImage is erect so less chances of error.error.
  9. 9. Digital levelDigital level  They are not popular instead autoThey are not popular instead auto levels are more extensively used.levels are more extensively used.  The Trimble DiNi Digital Level :The Trimble DiNi Digital Level : Determine accurate heightDetermine accurate height information 60% faster than withinformation 60% faster than with automatic levelingautomatic leveling  Eliminate errors and reduceEliminate errors and reduce rework with digital readingsrework with digital readings  Transfer data to the office easilyTransfer data to the office easily  Measure to a field of just 30 cmMeasure to a field of just 30 cm
  10. 10. TOTAL STATIONTOTAL STATION  Basic Principle A total station integrates the functions of a theodolite for measuring angles, an EDM for measuring distances, digital data and a data recorder. Examples of total stations are the Sokkia Set4C and the Geodimeter 400 series. All total stations have similar constructional features regardless of their age or level of technology, and all perform basically the same functions.
  11. 11. Features:-Features:-  Total solution for surveyingTotal solution for surveying work,work,  Most accurate and userMost accurate and user friendly,friendly,  Gives position of a point (x, yGives position of a point (x, y and z) w. r. t. known pointand z) w. r. t. known point (base point),(base point),  EDM is fitted inside theEDM is fitted inside the telescope,telescope,  Digital display,Digital display,
  12. 12.  On board memory to store data,On board memory to store data,  Compatibility with computers,Compatibility with computers,  Measures distance and angles and displaysMeasures distance and angles and displays coordinates,coordinates,  Auto level compensator is available,Auto level compensator is available,  Can work in lesser visibility also,Can work in lesser visibility also,  Can measure distances even without prismaticCan measure distances even without prismatic target for lesser distances,target for lesser distances,  Is water proof,Is water proof,  On board software are available,On board software are available,  Can be used for curve layout after feeding data.Can be used for curve layout after feeding data.
  13. 13.  New tNew total stationsotal stations have atmospherichave atmospheric correction, and auto-focus. In addition, thesecorrection, and auto-focus. In addition, these series incorporates a quick distance measuringseries incorporates a quick distance measuring mode and a high data storage capacity formode and a high data storage capacity for increased productivity.increased productivity.  The newThe new Total stationTotal station gives the uniquegives the unique opportunity for long range distance monitoringopportunity for long range distance monitoring of up to 9000m to a single prism. Using theof up to 9000m to a single prism. Using the scan functionality of software allows fullyscan functionality of software allows fully automated monitoring of the prism in directionautomated monitoring of the prism in direction of the line of sight.of the line of sight.
  14. 14. USES:-USES:- Total Stations can be used for:  General purpose angle measurement • General purpose distance measurement • Provision of control surveys • Contour and detail mapping • Setting out and construction work
  15. 15. Factors influencing the use of Total Stations: • A clear line of sight between the instrument and the measured points is essential. • The precision of the instrument is dependent on the raw repeatabilities of the direction and distance measurements. • A well defined measurement point or target/prism is required to obtain optimal precision and accuracy. • The accuracy of direction and distance measurement is subject to a number of instrumental errors and the correct field procedures.
  16. 16. Auxiliary Equipment Required • Targets or Prisms to accurately define the target point of a direction measurement. • A data recorder if one is not integrated into the total station. • A download cable and software on a PC to capture and process the captured digital data to produce contour and detail maps.
  17. 17.  ROBOTICROBOTIC TSTS  Display at target also,Display at target also,  No need of operator onNo need of operator on station,station,  Moves automatically toMoves automatically to predetermined directionpredetermined direction and focuses automaticallyand focuses automatically at target at specifiedat target at specified distance,distance,  Can be integrated withCan be integrated with GPS also.GPS also.
  18. 18. THANKTHANK SS
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