See how for an area coverd by three stations, the station are marked and bearings are measured so that triangulation can be marked with respect to these three lines AB, BC and CA.
Пікірлер: 34
@ronbell79202 жыл бұрын
One cannot overstate the importance of taking the back bearing. My experience with compass work, decades ago, showed me how many times there appeared a "local attraction" which pulls the needle away from the proper heading. If one excludes the back bearing they become unaware of how far off they have become on the line to be surveyed. In the early 1980's I would use a compass to "rough traverse" the survey for new underground gas lines. We would use aerial photo's to map the proposed route, then place "targets" at road crossings and intersections to "reinforce" the course. I would go out with my compass and flag a line between these targets. Sometimes I was pretty close, most times I would have to back track and correct my error. Then the survey crew would come through with total stations and run the "true line". Now GPS has changed all of that, but it was a fun exercise and a real eye opener on the limitations of compass accuracy. Later I would have the crews rough tape the surveyed line, after it had been cleared to get from one reference point to the next. This to was a good exercise as the crews got a "real" lesson of how inaccurate many of the original surveys were. When we did boundary work this lesson helped them to understand that one had to look in a bigger circle than a layman might of expected to find the called for corner. As technology has progressed the accuracy of surveying has greatly multiplied. Accurate geospatial location is the basis for civil progress in land development. Many countries are way behind on the importance of this, as a result conflicts with roads, drainage, utilities, and buildings occur simply because there is no information base to prevent it. Governments would be advised to use GPS to place suitable controls so that private firms, even using a compass and tape could survey and plan for infrastructure that works together. Great video guys, how about one where you head out of the park!
@dr.ajaykgaikwad4872 жыл бұрын
Dear sir Thank you for your reply. And yes correctly said Back bearing is must to have accuracy
@dr.ajaykgaikwad487 Жыл бұрын
Agree with Bell sir Yes from each station Back bearing needs to be taken first then the Fore bearing, always.... Also then from initial station the bearing observed.....
@sarithakrishnan44412 жыл бұрын
Useful Vdo, thank you sir
@GoluK-yw3fk4 ай бұрын
Very useful video ❤
@Sampurna_official2 жыл бұрын
Helpful video Sir
@sanatdwarkaprasaddubey64143 жыл бұрын
Nice vdo sir
@rokeyytgaming3852 жыл бұрын
Thank you sir for good explanation
@harshverma1171 Жыл бұрын
Vedio helps a lot thanks. Sir. ❤
@chandrakantyadav79392 жыл бұрын
Thanks soo much much sir♥️♥️
@AdityaTiwari-my7iw2 жыл бұрын
Really great effort sir
@user-ji8wk2nd6u23 күн бұрын
What is compass
@user-ql5mq8qt4e11 ай бұрын
Thanku sir 🙏🙏
@anusuyadon39902 жыл бұрын
Thankyou for the video
@rakhidebnath2522 жыл бұрын
Thanks sir
@panduranggore71426 ай бұрын
Nice video
@abdulqadir849310 ай бұрын
Awesome❤
@PoonamSharma-oc8cyАй бұрын
Sir ji thoda hindi me bhi bola kro tb jyada ache smjh aayega 😅 because hindi humari matra bhasa hai
@akshitchaudhary900411 ай бұрын
Sir are these the corrected fore bearing and back bearing of line AB,BC And CA??? Please reply sir ASAP
@dr.ajaykgaikwad48710 ай бұрын
No These are observed FB n BB Are to be corrected by included angle method or local attraction method
@suresh08082 жыл бұрын
Thank for good explanation Sir..
@anupgupta49342 жыл бұрын
Thank you Sir 💯
@i.m_manojkumar2 жыл бұрын
Super sir Thank you sir 😄
@Nehakhanvlog2 жыл бұрын
New subscriber
@fitalewfisha8901 Жыл бұрын
please tell me the cost
@nafisaparvin42702 жыл бұрын
Thanks
@ogidanblessingajayi61342 жыл бұрын
Good
@rohitnayak51892 жыл бұрын
Good 👍
@birinaL2 жыл бұрын
Helpful
@IttjustANIME2 жыл бұрын
320th subscriber
@shivprasadgavhale73948 ай бұрын
Please hindi language use sir
@raghbirkaur13502 жыл бұрын
💯💯70000000000
@rajveergahanoliya7243 Жыл бұрын
Are hindi hi bol le te sir kyu hindi Bolne me sharam Aati h kya
@dr.ajaykgaikwad487 Жыл бұрын
Hi, being in Maharashtra and teaching them, so was in Marathi, here after I wl do it in Hindi.....ok