Civil Engineering - Surveying - Discussion

A bubble tube's glass cover (through which you can see a circle in the middle of the liquid) is typically 100m, where a higher radius means a flatter surface and greater tendency/rate of movement for any tilt or disturbance.

Think of the radius of curvature as "what radius of a circle I would need to generate this kind of curve". For visualization: a 2cm wide marble has a radius of curvature of 1cm, and you are certain that it is very much curved. Meanwhile, in some sense, you can say that flat ground has a radius of curvature equal to R🜨.

I'm just continuing the comments here, and idk if bubble tube is also the same as bubble level in total stations, survey rods, and leveling staffs.

The axis of the bubble tube is not an axis passing through the bubble tube-like telescope. It's an arc that passes through the midpoint of the bubble tube length. For a deflection of theta degree at the center of the earth what deflection it makes on the surface of the earth is called its sensitivity. Similarly, the arc of the bubble tube also has a center at the center of the earth and so the radius of curvature is generally taken as 100m.

In the survey, it is important to have greater sensitivity for greater accuracy. Sensitivity is defined by the level tube, it changes with many factors like the viscosity of fluid, radius of curvature of the bubble, dia of the tube, the internal roughness of tube etc. Greater is the radius of curvature greater is the sensitivity.

In the survey, it is important to have greater sensitivity for greater accuracy. Sensitivity is defined by the level tube, it changes with many factors like the viscosity of fluid, radius of curvature of the bubble, dia of the tube, the internal roughness of tube etc. Greater is the radius of curvature greater is the sensitivity.

In the survey, it is important to have greater sensitivity for greater accuracy. Sensitivity is defined by the level tube, it changes with many factors like the viscosity of fluid, radius of curvature of the bubble, dia of the tube, the internal roughness of tube etc. Greater is the radius of curvature greater is the sensitivity.

The radius of curvature of the arc bubble is very sensitive when if you put it the center in experiment. It will give you correct image of line of sight. Bubble tube is generally to fix at 100m distance.

Greater is the radius of the Curvature lesser is the sensitivity.

Sensitivity = Length of one division on tube / Radius of curvature.
= L/R.

If R is more, sensitivity is less.

Bubble tube sensitive is proportional with length The radius of curvature of the arc and dia of pipe.

Radius of bubble tube is 200 mtr. Yes or no?

Please explain me with the clear description.

100m radius of curvature means 1/100m of radius which is 1 cm radius of the bubble tube.