Dexter provides magnetic solutions for some of the most effective and advanced missiles currently in use by the United States and its allies.
At Dexter, we provide high-performance magnets and critical magnetic assemblies for end application in:
• Mirror Assemblies
• Rader Guidance
• Gyroscopic Assemblies
• Fin actuation
Inertial Navigation Systems
Inertial navigation systems (INS) use a combination of accelerometers and angular rate sensors (gyroscopes) to detect altitude, location, and motion. They may also be capable of detecting attitude, position, velocity, temperature, or magnetic fields.
An accelerometer is a device that measures the vibration, or acceleration of motion of a structure, using an electromechanical sensor that is designed to measure either static or dynamic acceleration.
The gyroscope is basically a massive rotor that is fixed in light supporting rings called gimbals. The gimbals have frictionless bearings that isolate the central rotor from outside torques.
Missile Fin Actuation
• At least one set of aerodynamic surfaces of canards: wings or tail fins
• At least one set of aerodynamic surfaces is designed to rotate and allow the missile
• Control and actuation usually require limited stroke motion achieved with servo
motors; actuators or stepper motors
• Require fin lock to maintain position - torque force requirements
• Motion transfer mechanism
• Control - feedback loop; control electronics
Infrared Guided Technology
• Military technology utilizing infrared tracking and measurement to control and guide missiles to target.
• Passive weapon guidance system with no target awareness - good for sneak attack
• System consists of an infrared seeker, computer and actuator
• Physical specifications are generally very tight and hard to meet. Tolerance, finish and workmanship are essential.