What is the Working Principle of Magnetic Oil Level Gauge?

What is the Working Principle of Magnetic Oil Level Gauge?


Magnetic oil level gauge operates on the principle of magnetic coupling and buoyancy. It is widely used for monitoring oil levels in various tanks, reservoirs, and machinery, particularly where reliable and clear level indication is crucial.

Overview

Here’s how it works:

  • Float Mechanism: The gauge consists of a float that moves up and down with the oil level. The float contains a permanent magnet, allowing it to rise or fall according to the liquid's buoyancy.

  • Magnetic Coupling: Outside the tank, aligned with the float, is a magnetic indicator or follower inside a transparent tube or housing. As the float inside the tank moves with the oil level, the magnet inside the float couples with the magnetic indicator outside, causing the indicator to track the float’s movements.

  • Level Indication: The indicator moves along a graduated scale, which provides a visual reading of the oil level. Because the mechanism operates through magnetic coupling, there is no need for direct mechanical linkage or electrical components, making it highly reliable and leakproof.

  • Remote Transmission (Optional): In advanced models, the float's position can be translated into electrical signals via sensors, which can then be transmitted to remote monitoring systems.

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