The Optical Square from AGN Enterprises is a compact surveying instrument designed for setting out right angles, establishing perpendicular offsets, and locating points relative to a survey line. Based on optical reflection principles, it enables the surveyor or student to establish approximately 90° directions during chain and tape surveying exercises. It is suitable for civil engineering laboratories, surveying laboratories, polytechnic institutes, ITIs, engineering colleges, vocational training centers, and field-surveying education.
The Optical Square is commonly used in surveying to establish a perpendicular line to a chain or survey line. Its optical arrangement allows the observer to view direct and reflected objects simultaneously and determine when the required alignment has been achieved.
The instrument generally works using mirrors or reflecting surfaces positioned at a fixed angular relationship. Through the principle of reflection, this arrangement enables a 90° angle to be established between survey directions.
Students can use the instrument to understand concepts such as perpendicular offsets, survey-line alignment, locating ground details, and basic optical surveying methods.
Its compact construction makes it convenient for field demonstrations and practical surveying exercises.
The Optical Square helps students connect geometrical concepts of perpendicular lines and right angles with real surveying applications.
Teachers can use the instrument to demonstrate how offsets are taken from a survey line to locate features such as boundaries, buildings, roads, and other ground details.
Practical exercises with an optical square also help students develop skills in sighting, alignment, field observation, and elementary surveying.
AGN Enterprises supplies surveying and educational instruments designed for practical laboratory demonstrations, field exercises, and technical training. Our products support civil engineering, surveying, polytechnic, ITI, vocational, and technical education.
We also provide competitive pricing, institutional and bulk supply, prompt delivery, and support for surveying laboratory requirements.
