White Paper: Magnetism —an Influencing Factor on Weighing
Authors: Dr. Thomas Pertsch | Last updated: May 2020
Overview
In 1820, Danish physicist Hans Christian Oersted noticed a compass needle was deflected when held near a wire through which an electric current flowed. He concluded that a current-carrying conductor is surrounded by a magnetic field, thereby affecting the needle. Today, the interaction of electricity and magnetism is explained using an elegant physical theory summed up in the Maxwell equations.
While electricity and magnetism are naturally occurring phenomena, they have ever-domineering presences in our evolving industrial world. Often, their effects have many benefits, but there are times when their influence can be detrimental – like in the case of weighing. Among the negative weighing effects include the inability to achieve repeatable readings.
- Document type: White Paper
- Page count: 4
- Read time: 4 minutes
Key Takeaways
- Maxwell's Equations:
- This refers to the four equations published by James Clerk Maxwell which describe how charged particles give rise to electric and magnetic force per unit charge. In turn, they explain how an electric field can generate a magnetic field.
- Effects of Weighing Magnetic Materials:
- Weight values could read as stable but be non-repeatable.
- The sample can display different weight values depending on its position in the weight pan.
This Resource is Designed for:
- Lab Managers
- Lab Technicians
- Lab Assistants
- Lab Balance Users
- Analytical Labs
- Chemical Labs
Applications Supported:
- High resolution balances
- Data integrity
- Fast stabilization time & high precision balances
