How To Measurement of Horizontal Distance Using Auto Level

How To Measurement of Horizontal Distance Using Auto Level

The auto level is a surveying and construction tool utilized to determine height variances and establish, measure, and adjust the elevations of predetermined points or features. Its user-friendly design has contributed to its widespread adoption within the surveying community. The simplicity of the auto level not only enhances efficiency but also leads to cost savings. How To Measurement of Horizontal Distance Using Auto Level.

The auto level machine is a commonly utilized professional instrument for accurate leveling and measuring horizontal distances on site. The technique employed to determine the horizontal distance is referred to as the ‘stadia method’.

It is essential to utilize the tool on a flat surface in order to ensure the accuracy of this technique. The Stadia range is beneficial for identifying geographical features like rivers, fields, bridges, roads, and structures.

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When using the Stadia measuring method to determine horizontal distance, ensure that the staff rod is positioned in such a way that it is visible between the two stadia marks on the instrument’s reticle (refer to figure- 1). Align the auto level machine with the level staff and take note of the measurements indicated by both the cross and stadia hair markings.

Example

Upper Stadia Hairs =  1.56 metre

Lower Stadia Hairs = 1.23 metre

Now The Difference between Upper Stadia & Lower Stadia = 1.56 – 1.23 = 0.33 metre

Now convert to the 0.33 meter into the cm i.e, 0.33 x 100 = thirty three cm.

In the Auto-level machine, the scale of the difference of Upper Stadia & Lower Stadia is designed in such a manner i.e,

One cm = One m

So, we can say The horizontal distance is thirty three metre.

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