Magnetic Field Mapper

It can test the three-dimensional magnetic field distribution of AC and DC magnetic fields in any shape space with high precision, the three-dimensional distribution of magnetic structures on the surface of various shapes, uniform distribution, multi-pole magnetic ring, N/S magnetic pole distribution, motor magnetic field, superconducting magnetic field, magnetic resonance imaging magnetic field and many other magnetic field characteristics tests; It is then drawn into various graphics, stored data and saved for printing.

It is suitable for all kinds of AC and DC magnetic field magnetic research and has been widely used by many domestic and foreign aerospace military and scientific research units.

● Wide range of measurement: Space measurement range is 200mm x 200mm x 200mm (X, Y, Z)（it can be customized, please advise if there's a special requirement), free tour optional three directions, and will reach 5Axis platform when rational platform attached to it. The translation is meticulous(Resolution ratio: 0.00039mm), Positional accuracy 0.01mm, Repeat positional accuracy＜0.005mm, Rotation travel angle resolution ratio ＜0.0002°, positional accuracy 0.01, Repeat positional accuracy ＜0.005°, Velocity of movement can be divided into 2-64 classes. Fine distribution of measure space on the physical space.

● High accuracy of system measurement: Using high-precision digital Gauss meter (one-dimensional or multi-dimensional) equipped with micro Hall probes (one dimensional ɸ0.5mm, two-dimensional ɸ1.2mm, three-dimensional ɸ1.2mm)make space and surface magnetic measurement up to higher accuracy. (One-dimensional precision can be up to ± 0.05% of the reading, range±0.005. Three-dimensional precision can be up to ± 0.10% of reading, range ± 0.005 )

● Automation and Digitization: The real-time control and data acquisition controlled by computer, system software design measure processes that can be divided into many forms, user can directly enter data parameters of the measured object for fully automated measurement, and data is automatically recorded and saved, based on test data system can generate one dimensional, two-dimensional, three-dimensional graphics and measurement data logging, database format is Access and print the chart.

● Flexible combinations: Three-dimensional translation platform and rotation platform can be assembled in many suitable situations for various measurement methods to meet the needs of the different measurements, system software covers control and data acquisition, and software function can also be extended as required, realizing full automation of unmanned monitoring measurement.

● Gauss meter tested by National Institute of Metrology China; System software registered and approved by CPCC（Copyright Protection Center of China）

Magnetic induction intensity
Magnetic induction intensity is a physical quantity used to describe the properties of the magnetic field, expressed by B, the direction of B at a point in the magnetic field is the direction of the magnetic field at the point, and the size of B indicates the strength of the magnetic field at the point.

In the SI system of units (International System of Units), the unit of magnetic induction strength is [volts · second/meter 2], and [volts]·[second] is called Weber, so the unit of magnetic induction strength is called [Weber/meter 2] or [Tesla], referred to as [T], in the CGSM system of units, the unit of magnetic induction strength is [Gauss]. The units are denoted by symbols: V is [volts], s is [seconds], m is [meters], Wb is [Weber], T is [T], Gs is [Gauss], mT is [millite].
1T = 1Wb/m2=104Gs=103mT (1)

Magnetic line of force, magnetic flux and magnetic flux continuity theorem
Magnetic field is depicted graphically with magnetic field lines. The magnetic field lines of various magnetic fields generated by current are shown in Figure 1. Magnetic field lines are headless and tailless closed lines surrounding the current, and the direction of current and the direction of return of magnetic field line conform to the right-hand rule.

We specify that the tangent direction of any point of the magnetic field line is the direction of the magnetic field (i.e., B) at that point, and that the number of magnetic field lines per unit area perpendicular to the B vector is equal to the magnitude of the B vector at that point. In other words, where the magnetic field is strong, the magnetic field line is denser, and where the magnetic field is weak, the magnetic field line is thinner.

The total number of lines of magnetic force passing through a surface is called the magnetic flux passing through the surface and is represented by Φ. The calculation of magnetic flux is shown in Figure 2. The area element is taken on the surface, and a θ Angle is formed between the direction of its normal line and the direction of B of the point. The magnetic flux of the element passing through the area is: dφ=B×cosθ×ds (2)

Magnetic field strength, permeability and ampere-loop law
Magnetic field strength is a physical quantity introduced to facilitate the analysis of the relationship between magnetic field and current, it is also a vector, expressed by H, its relationship with magnetic induction intensity is:
H = B/μ (7)

Where: μ is the permeability of the magnetic medium, determined by the nature of the magnetic medium
Agreed. In SI units, the permeability of a vacuum is:
μ0 = 4π×10-7 Henry/m (8)

The unit of H is [ampere/meter], in the CGSM system of units, the permeability of a vacuum is 1, and the unit of H is [Oster], short for [Ao]. The units are represented by symbols: A is [ampere], Oe is [O], and H is [Henry].