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HOME : ABOUT ARNOLD : SERVED MARKETS : MILITARY
Market Segment Discussion
Military and aerospace magnet requirements are often more stringent than consumer, automotive, industrial and similar applications because of the harsh environment to which the products are subjected such as extreme low and high temperatures, corrosive environment, vibration, radiation, vacuum and high pressures, etc.
Magnetic products used in military and aerospace applications are often expected to perform flawlessly for extended periods and with little or no maintenance.
Applications that are somewhat unique to this market segment:
 Wave guides for radar
Magnetic bearings
Drive Transmission chip collectors
Wave guides for Microwave transmission
Positioning motors, e.g. for aircraft flaps
EMI/RFI shielding
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Quality and Environmental Management Systems
As evidence of our commitment to the military and aerospace markets and to continuous improvement, ISO 9001, ISO 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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| 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 is routinely performed to optimize a design. Diligent application of these techniques can lead to beneficial innovations.
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| Application Example |
When electric current travels in a wire under DC (direct current) conditions, it is almost uniformly dispersed throughout the cross-section of the wire. Under AC (alternating current) conditions, and especially at higher frequencies, the current carrying electrons are located mostly on the skin of the conductor. At microwave frequencies, the current doesn't flow in a wire, it is "contained" in a waveguide. Permanent magnets and Electromagnets are used to focus, amplify and guide the microwaves.
Radar is just one device that utilizes high frequency radio waves that require waveguides as discussed above. The "dish" on the back of the airplane illustrated here carries the transmitting and receiving antennas for the radar system.
The second illustration is a microwave relay tower with several diffent antenna types visible. Transmission of the microwave signal to and from the antennas is by waveguide.
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