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HOME : ABOUT ARNOLD : SERVED MARKETS : COMPUTER
Market Segment Discussion
Computers and peripherals utilize magnetic materials in great numbers in devices such as these:
Permanent Magnets
 Cooling fan motors
CRT (monitor) focusing rings and tabs
Magnetic toner transfer magnets
Non-contact interlock switches
Print head positioning motor
Printer paper drive motors
Scanner read head motor
Spindle motors
Stepper motors
Voice coil motors (read-write head positioning in hard, floppy and CD-ROM drives)
Soft Magnetic Products
Cable chokes
Power supply filter chokes
Inductors
Transformers
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Click picture to enlarge. |
The average computer system (PC, printer, monitor) contains over 40 magnetic components. The number increases as more peripherals are added, such as a second CD-ROM drive, DVD drive, a scanner or laserjet printer. Arnold is prepared to supply the full range of magnetic products into this marketplace. Contact us to find out how we can assist you.
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Quality and Environmental Management Systems
As evidence of our commitment to the computer and peripherals market and to continuous improvement, ISO 9001 or 9002 and QS 9000 certification has been achieved and selected manufacturing locations have also been certified under ISO 14001 for environmental compliance.
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| Applications Engineering |
Whether your company has sophisticated in-house magnetics design capabilities or a more modest facility, our Applications Engineers are ready to support your efforts through the entire product life cycle including: |
• Conceptualization
• Initial design
• Prototyping
• Design optimization
• Pre-Production trials
• Validation testing support
• Production issues
• Cost reduction activities
• Next generation designs
Additional capabilities:
• Magnetic field mapping
• Magnetic properties testing
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Magnetic Toner Roll Assembly Field Map
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| Design Assistance |
Applications engineers at each of our manufacturing locations and at our world class Magnetics Technology Center in Marengo, Illinois (near Chicago), offer comprehensive design assistance.
- Magnetic modeling: 2D, Radially symmetric, 3D, Temperature dependence
- Design relationships to your Hall sensor and application Specifications
Complete analysis includes studying the effects of the operate and release point of the Hall sensors compard to the magnetic output waveform
- Quadrature encoders
- Switches and latches
- Ratiometric / Linear Halls
- Pulse counters
- Complex holding force calculations
- Insert and overmolding designs
- Manufacturability analysis
- Measurement capability to verify design
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| Magnetic Prototyping, Testing and Training |
Extensive magnetic prototyping and testing capabilities are available at the manufacturing locations and at our Magnetics Technology Center in Marengo, Illinois, USA.
Seminars in Magnetics are also available either at the Technology Center or at your company location. These classes are tailored to satisfy your needs, whether for inexperienced, non-technical persons or your most expert designers.
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| Boundary and Finite Element Analysis (BEA, FEA) |
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Complex devices can be modeled using boundary or finite element analysis.
Magnetic circuit analysis can lead to design innovation such as in this device which provides combinations of pole patterns to achieve precision switching of a Hall effect sensor (switch).
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| Application Example |
Switch Mode Power Supplies utilize soft magnetic cores.
Where heat and space is not a concern, ferrite cores may be used. For larger power supplies or where space and temperature are important, higher quality nickel-iron cores are utilized.
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