Types of Compass

A compass is a navigational instrument that uses a magnetized needle to find direction. The needle is attracted to the Earth’s magnetic field, which allows it to point north. There are many different types of compasses, each with its own unique features and applications.

In this blog post, we will discuss the different types of compasses, including their features, uses, and advantages. We will also provide some tips on how to choose the right compass for your needs.

Here are some of the most common types of compasses:

  • Magnetic compass: This is the most common type of compass. It has a magnetized needle that floats in a liquid, allowing it to rotate freely. Magnetic compasses are used for a variety of activities, including hiking, camping, and orienteering.
  • Prismatic compass: This type of compass has a built-in magnifying lens, which makes it easier to read the compass card. Prismatic compasses are often used by surveyors and other professionals who need to take accurate bearings.
  • Baseplate compass: This type of compass has a flat base, which allows it to be used with a map. Baseplate compasses are often used by hikers and orienteers who need to plot their course.
  • Thumb compass: This type of compass is small and portable, making it ideal for backpacking and other outdoor activities. Thumb compasses are often used by hikers and climbers who need to take quick bearings.

No matter what type of compass you choose, it is important to learn how to use it properly. This will help you to stay safe and oriented on your adventures.

Types of Compass

  1. Prismatic compass
  2. Surveyor’s compass
  3. Liquid compass

Prismatic compass

This is the most common type of compass used in surveying. It has a magnetic needle that is free to rotate in a horizontal plane. The needle is mounted on a graduated circle that is used to measure the bearing of a line. The prismatic compass also has a sighting device that is used to align the compass with the line being measured.

Surveyor’s compass

Surveyor’s compass is a more advanced type of compass that is used for more precise measurements. It has a magnetic needle that is suspended in a liquid, which reduces the effects of vibration and other disturbances. The surveyor’s compass also has a more accurate graduated circle and a better sighting device.

Liquid compass

Liquid compass is used in marine navigation. It has a magnetic needle that is suspended in a liquid, which prevents the needle from being affected by changes in temperature or pressure. Liquid compasses are also more resistant to shock and vibration than other types of compasses.

The type of compass that is used for compass surveying depends on the specific needs of the project. For example, a prismatic compass may be sufficient for a simple survey, while a surveyor’s compass may be required for a more precise survey.

In addition to these three types of compasses, there are also a number of other types of compasses that are used for different purposes. For example, orienteering compasses are designed for use in outdoor activities, and baseplate compasses are used for navigation and map reading.

About the Author
Er. Mukesh Kumar
Er. Mukesh Kumar is Editor in Chief and Co-Fonder at ProCivilEngineer.com Civil Engineering Website. Mukesh Kumar is a Bachelor in Civil Engineering From MIT. He has work experience in Highway Construction, Bridge Construction, Railway Steel Girder work, Under box culvert construction, Retaining wall construction. He was a lecturer in a Engineering college for more than 6 years.