GEOMETRY AND MEASUREMENT DISTANCE
Surface & Axial Field Calculator.
Estimate the signed magnetic flux density on the centre axis of a cylinder, block or ring. Compare dimensions and distance, then carry the inputs into an engineering review.
A free-space model for initial discussion. Bᵣ is an input from material data; the result is a calculated B field, not a pull-force rating.
FROM ESTIMATE TO MEASUREMENT
Keep the test conditions with the result.
Specify the magnet temperature, pole direction, probe position and gap. Include nearby steel and other magnets when describing the assembly. The selected grade, operating point and measurement fixture need a part-specific review.
Prepare the next review
Send a dimensioned drawing, a material reference, the working temperature and the field requirement with its location. For a ring, identify whether the reading is in the bore or over the magnet material.
Discuss the measurement setupFormula basis
The cylinder, block and ring estimates use standard free-space centre-axis analytical expressions. The implementation and numerical checks are independent. The assumptions above define what this estimate can describe.