Military & Aerospace

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 

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 

Design Assistance

 Applications engineers at each of our manufacturing locations can assist you with your needs, such as. 

•  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 
   

 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.