Prismatic Compass

Definition: A prismatic compass is a navigational instrument used for measuring direction, typically in land surveying, geology, and outdoor navigation.

Construction: It consists of a magnetic needle housed in a transparent or translucent case, with a prism attached to allow for easier reading of angles and bearings.

Functionality: The magnetic needle aligns with the Earth's magnetic field, indicating the cardinal directions. The prism aids in reading compass bearings and angles accurately.

Features: Prismatic compasses often include a sighting mechanism, allowing users to aim at distant objects while taking readings, enhancing precision in navigation and surveying tasks.

Accuracy: Prismatic compasses offer higher accuracy compared to traditional magnetic compasses due to their design and sighting features, making them valuable tools for professionals requiring precise directional measurements.

Applications: Widely used in geological surveys, topographic mapping, land surveying, and outdoor activities such as hiking, orienteering, and wilderness navigation.