Saturday, June 22, 2013

Lesson 6 : Sources Of Errors

 Sources Of Errors 

1) personal errors 

no surveyor has perfect senses of sight and touch 

2) Instrument errors 

devices cannot be manufactured perfectly wear and tear and 

compatibility with other components  .

3 ) Natural error 

temperature , wind , moisture , magnetic variation , etc .

4) Systematic error 

Known as cumulative errors .

Correction can be made to eliminate them .  


2 comments :

errors is very very very bad things in civil engineering

Post a Comment