Would you prefer to use help of Inertial Measurement Unit (IMU) in position determination?

Would you prefer to use help of Inertial Measurement Unit (IMU) in position determination?

  • Yes, I want to use this advantage on practice.

  • Yes, but in very limited areas like Topo.

  • No, I think it is not for professional use.


Results are only viewable after voting.

Nate The Surveyor

Well-Known Member
What can the IMU do?
Can it do tilt shots?
How does it derive it's direction? With a magnetic compass? Around metal, this is not good.
Some Inertial Measurement systems, can compute the motion, and such, and allow the following:
Take shot in the field. Walk to corner in woods. Set on corner. press store. Walk back to the field, and take shot. It becomes a little series of lines, (Inertial), with a "Closure". The Military had a "PADS" system like this. It was big. It rode in a Jeep.
I am very curious.
Nate
 

Eugene Aksyonov

Administrator
JAVAD GNSS
5PLS
IMU can provide the precise tilt measuring if you can't set pole vertically or use CoGo functions. Yes, can keep position for a few seconds with RTK precision in case of no rtk solution provided. IMU, Magnetic Compass are used with GNSS data usually to guide the orientation. Metal issue is solvable.
As a benefit usually is the time of points collection.
 

Eugene Aksyonov

Administrator
JAVAD GNSS
5PLS
IMU can provide the precise tilt measuring if you can't set pole vertically or use CoGo functions. Yes, can keep position for a few seconds with RTK precision in case of no rtk solution provided. IMU, Magnetic Compass are used with GNSS data usually to guide the orientation. Metal issue is solvable.
As a benefit usually is the time of points collection.
 

Sean Joyce

Well-Known Member
What can the IMU do?
Can it do tilt shots?
How does it derive it's direction? With a magnetic compass? Around metal, this is not good.
Some Inertial Measurement systems, can compute the motion, and such, and allow the following:
Take shot in the field. Walk to corner in woods. Set on corner. press store. Walk back to the field, and take shot. It becomes a little series of lines, (Inertial), with a "Closure". The Military had a "PADS" system like this. It was big. It rode in a Jeep.
I am very curious.
Nate
I did developmental testing of PADS at Aberdeen Proving Ground in the 1970s.
 

Mark Wheeler

Active Member
Mark, it will improve. But the question is not related to specific product as LS. Maybe for your spplication it is not required feature at all.
I have found with the LS that if the Tilt is calibrated before the shot, a slight tip pretty much is very close or the same as plumbed location. A larger tip may have a tenth error.
 
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