Compass Needle 8mm

Introduction

A compass needle is a small, magnetized pointer used to detect magnetic fields and indicate direction. The 8mm compass needle is compact, lightweight, and ideal for educational, scientific, and navigational purposes.

Specifications

1. General Specifications

• Length:
  • 8 mm
• Material:
  • Plastic
• Polarity:
  • Marked North (N) and South (S) poles.
• Pivot Design:
  • Low-friction pivot for smooth and accurate rotation.
  • Can include jeweled or synthetic bearings.

2. Physical Features

• Colour:
  • North pole is often painted red and South pole in blue or left uncoloured.
• Base:
  • Optionally mounted on a plastic or brass holder.
  • Available as a standalone needle for versatile use.
• Weight:
  • Less than 1 gram for high sensitivity.

Applications

1. Educational Purposes

• Demonstrating magnetic field lines with bar magnets or solenoids in physics labs.
• Understanding Earth’s magnetic field and compass principles.

2. Navigation

• Used in compact navigation devices for hiking, camping, and orienteering.

3. Scientific Instruments

• Incorporated in galvanometers, magnetometers, and other magnetic field measuring devices.

Additional Features

• Housing:
  • Optional 360° rotating housing with degree markings for precise measurements.

Care and Maintenance

• Storage: Keep away from strong magnets and electronic devices to avoid demagnetization.
• Durability: Use anti-corrosion coated needles for long-lasting performance.