Application of Multipole Magnet in Magnetoelectric Instruments

In magneto-electric instruments, although a magnet may appear to be merely an unremarkable component, it has a direct bearing on the instrument’s measurement accuracy and pointer response. For instruments requiring a high-quality magnetic field distribution, ordinary magnets often fail to meet the requirements; this is where multipole magnets come into their own.

By strategically arranging multiple N and S poles, multipole magnets create specific magnetic field zones. Compared to standard single-pole magnets, multipole magnets are capable of generating a more uniform and stable magnetic field within a limited space, thereby meeting the instrument’s requirements for measurement accuracy and response speed.

Ferrite material multipole magnetic ring

In practical applications, more magnetic poles in a multipole magnet do not necessarily equate to better performance; the design must be tailored to the instrument’s structure, coil dimensions, operating air gap and the required magnetic field strength.

For manufacturers of magneto-electric instruments, it is also essential to pay attention to parameters such as dimensional accuracy, uniformity of pole distribution and magnetic flux density, as these all affect the linearity and measurement stability of the instrument’s pointer. When commissioning custom multi-pole magnets, drawings detailing the actual instrument structure, the number of poles, the magnetisation direction and the magnetic field requirements should be provided so that the magnet manufacturer can produce tailored samples.

View the multi-pole magnets section; https://www.dgcourage.com/chanpin/multipole-magnets/