Target field
Define the field strength and uniformity required in use.
Halbach Arrays
Oriented magnet arrays for a defined field region. Connect the target field, working volume and segment retention in one review.
Application review notes
The arrangement of each segment determines how the array performs. We start with the required field, working volume and assembly envelope, then review segmentation, orientation, retention and the measurement plan as one system.
START WITH YOUR REQUIREMENTS
Working volume
Show the useful field region, clearances and assembly envelope.
Array verification
Agree segment orientation, retention and the field-map fixture.
FORMS & CONFIGURATIONS
Array Geometry and Segment Layout.
Representative product forms. Final geometry, dimensions and material are confirmed against your drawing.
Product forms
Segmented cylindrical and linear permanent-magnet arrays.
View Configuration GuideDESIGN & SELECTION
Define the Working Volume.
Segment geometry, carrier and working volume are defined for each project. Magnetization directions and tolerances follow the approved drawing.
Direction patterns. Confirm the magnetization schedule, target field region and measured field map for the actual geometry.
Select a category to see the inputs to confirm.
Review This ConfigurationSelection identifies the review scope. Materials, ratings and acceptance criteria remain subject to engineering confirmation.
A good fit when
- Applications that need a concentrated field with reduced back-iron
- Linear or cylindrical field profiles with a defined working gap
- Systems where field uniformity or one-sided access is important
- Programs able to control segment orientation, fixtures and magnetic safety
Check before release
- Field strength and uniformity are highly sensitive to segment angle, gap and assembly error
- The array can create strong stray fields during assembly, test and transport
- Eliminating back-iron is not automatic; structural, thermal and magnetic return paths need review
- The final field map must be measured in the actual working volume, not inferred from catalogue grade
ENGINEERING REVIEW
Define the Useful Field Region.
Specify the measurement volume and field target, then resolve segment orientation and structural retention.
Working volume
Provide the field target, measurement plane, useful volume, air gap, field direction and allowable uniformity variation.
Array geometry
Share length, diameter, segment count, pole count, magnetization angle, keying features and non-magnetic structural parts.
Thermal and structural
Define temperature, vibration, centrifugal or transport loads, adhesive or mechanical retention and service-life requirements.
Assembly safety
Plan magnetized or unmagnetized assembly, handling fixtures, keep-away zones, polarity marking and packaging constraints.
QUALITY & RELEASE
Agree the Field Map and Fixture.
Verification follows the component’s function and the agreed inspection plan.
3D field map
Review details
Map the field across the specified working volume using a calibrated Hall system and the released fixture or coordinate system.
Pole orientation
Review details
Verify segment polarity, magnetization angle, sequence and indexing before final bonding or encapsulation.
Uniformity and leakage
Review details
Report field uniformity in the working zone and stray-field readings at agreed external locations.
Mechanical retention
Review details
Test the final array under temperature, vibration or centrifugal conditions that represent the application.
PRODUCT QUESTIONS
Halbach Field and Assembly Questions.
Does a Halbach array always remove the need for back-iron?
Not always. A Halbach arrangement can concentrate field and reduce reliance on back-iron, but structural stiffness, thermal paths, leakage, saturation and assembly constraints still determine the final design.
Can you provide the magnets unmagnetized?
Unmagnetized segment supply may simplify assembly and safety, while some programs require pre-magnetized matched parts. The sequence depends on the fixture and array architecture.
How should field uniformity be specified?
Define the working volume, coordinate system, measurement spacing, temperature and allowable deviation. 'Uniform' without a measurement envelope is not an acceptance criterion.
CONTINUE EXPLORING
Related Magnetic Solutions.
APPLICATION REVIEW
Map Your Required Magnetic Field.
Share the working volume, field direction and allowed variation.
Discuss This Specification