Levelling Tutorials
The aim of this series of short tutorials is to guide you through the procedures for setting up an automatic level to make it ready for use, and reading the levelling staff.
You
can select individual pages from the site map below, or work through the
series in sequence by using the 'next' link at the foot of each page.
Some pages have links at the bottom to interactive activities designed to help you check your knowledge. These activities open in new windows. When you have completed the activity click on the 'submit' button to check your results. If you need another try use the 'reset' button. Click the 'close this window' link at the bottom of the page when you have finished the activity.
You will find the answers or methods for the activities in the tutorial. Two activities include a help link should you get really stuck.
Introduction
Please read this section before starting
Setting up the instrument
The aim of this tutorial is to guide you through the procedures for setting up a tripod to make it ready for use
Level and tripod (or legs)
Setting up tripod
Attaching the Instrument
The aim of this tutorial is to show you how to attach the level to the tripod. The attachment method is the same for most modern survey instruments including levels, theodolites, and EDM systems.
Parts of the Instrument and Levelling Head
The aim of this tutorial is to introduce you to the automatic level and levelling head on the instrument. The three screw levelling head is found on most modern survey instruments including levels, theodolites, and EDM systems.
Parts of the level
Levelling an instrument with a linear bubble tube
Levelling an instrument with a spherical spirit level
Principle
of the Automatic Level
The aim of this tutorial is to describe the basic principle of an automatic level.
Reading the Staff
The aim of this tutorial is to demonstrate how to read a levelling staff that conforms to British Standard 4484.
Staff and its graduation
View through the telescope
Ensuring Staff is vertical
Height References
The aim of this tutorial is to introduce Bench Marks as a height reference.
Next Step
Using a surveying instrument effectively is a practical skill. It is not difficult, but does require care and patience.
You now need to go out and practice using a level and staff.
