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Friday, 4 January 2013

CE1002 – ELECTRONIC SURVEYING

CE1002  –   ELECTRONIC SURVEYING
L    T    P    C
3     0     0    3

UNIT I           BASICS                                                                         9
Methods   of   measuring   distance   –   Historical   development   –   Basic   principles   –
Classifications – Applications and comparison with conventional surveying.  
 
UNIT II          ELECTRONIC RESOURCE                                      9
Fundamentals  of  electronics  –  Resonant  circuits  –  Semiconductors  –  Lasers  –  Cathode
ray  tube  –  Photo  multiplier  tube  –  Transducers  –  Oscillators  –  Frequency  mixing  –
Modulation and demodulation – Kerrcell modulator – Measurement of phase difference –
Reflectors and power sources.

UNIT III        PROPAGATION OF ELECTROMAGNETIC WAVES                       9 
Definition – Classification – Applications –   Propagation properties – Wave propagation
at lower and higher frequencies – Refractive index – Factors affecting – Computation of
group  refractive  index  for  light  and  near  infrared  waves  at  standard  conditions  and
ambient   conditions   –   Reference   refractive   index   –   First   velocity   correction   –
Computation of refractive index for microwaves.

UNIT IV        ATMOSPHERIC PARAMETERS – REFRACTIVE INDEX              9
Measurement of atmospheric parameters – Mean refractive index – Real time application
of first velocity correction – Second velocity correction and total atmospheric correction.

UNIT V          ELECTROMAGNETIC DISTANCE MEASURING SYSTEM           9     
Electro  optical  system  –  Measuring  principle  –  Working  principle  –  Sources  of  error–
Infrared  EDM  instruments  –  Laser  EDM  instruments  and  total  station  –    Microwave
system – Measuring principle – Working principle – Sources of error –  Microwave EDM
instruments – Comparison with electro optical system – Care and maintenance of EDM
instruments – Modern positioning systems – EDM traversing – Trilateration and base line
measurement using EDM.

Total: 45
TEXT BOOKS
1.        Rueger, J.M., “Electronic Distance Measurement “, Springer-Verlag, 1990.
2.        Laurila,  S.H.,    “Electronic  Surveying  in  Practice”,  John  Wiley  and  Sons  Inc,
1983.

REFERENCES
1.         Burnside,  C.D.,  “Electromagnetic  Distance  Measurement”  Crosby  Lock  wood
staples, 1971.
2.         Soastamoinen,     J.J.,     “Surveyor’s     Guide     to     Electro-magnetic     Distance
Measurement”, Adam Hilger Limited, 1967.
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