- Civil Lab Mechanical Lab Engineering Lab Equipments
- sales@didacticlabequipments.com
CAT NO: DIDACTICNE1293
Prismatic Compass.
This Prismatic Compass is one of the two main kinds of magnetic compasses included in the collection for the purpose of measuring magnetic bearings, with the other being the The main difference between the two instruments is that the surveyor's compass is usually the larger and more accurate instrument, and is generally used on a stand or tripod. The prismatic compass on the other hand is often a small instrument which is held in the hand for observing, and is therefore employed on the rougher classes of work.
The graduations on this prismatic compass are situated on a light aluminium ring fastened to the needle, and the zero of the graduations coincides with the south point of the needle. The graduations therefore remain stationary with the needle, and the index turns with the sighting vanes. Since the circle is read at the observer's (rather than the target's) end, the graduations run clockwise from the south end of the needle (0° to 360°), whereas in the surveyor's compass, the graduations run antiâ€clockwise from north.
Call Now to Order
Support Team
OEM & Tenders
Dealership