摘要:
A method of positioning an optoelectronic device, for example a vertical cavity surface emitting laser, onto an optical fiber connector and maintaining that exact alignment while testing the quality of the optical output prior to applying an adhesive to make the interface permanent. The method includes the utilization of a multi-piece fixture which clamps the elements into position, allows for testing, and provides a fixture to maintain position throughout the curing process.
摘要:
Shock mounts are described that provide improved shock and vibration isolation compared to existing shock mounts. The shock mounts utilize zero-overlap elastomeric mount technology designed to provide more effective shock and vibration isolation. The shock mounts described herein can be used to mount any objects in which it is desired to isolate the objects from shocks and vibrations including, but not limited to, equipment and large mass objects on military and commercial vessels.
摘要:
A device and method that exchanges heat is described, which includes intaking air into a chamber and then forcing air from holes of a heat conducting surface that fluidly communicate with the chamber to create a toroidal mass of air resulting from vortex shedding. A pump, for example a flexible diaphragm, is employed to increase and decrease a volume of the chamber in communication with the holes. When the volume of the chamber is increased (air intake), a boundary layer of heat breaks up by the heat conducting surface which helps to improve cooling. When the volume of the chamber is decreased, jets of air are discharged from the holes to create vortices of air that cause vortex shedding and can also help disrupt the boundary layer of heat.
摘要:
An engine muffling system includes a Helmholtz tuning chamber to meet the changing acoustic muffling requirements associated with multiple applications. The engine muffling system in one embodiment includes at least one chamber configured as a plenum device, typically filled with an aggregate material or acoustic absorbing particulate material(s) in order to produce a tortuous path through the at least one chamber.
摘要:
The present invention provides a method for designing a frequency-shifting isolator system that includes selecting, an impact absorption envelope; a geometry for the isolator mount system; and an elastomeric dampening material formed in the selected geometry. The isolator mount system is preferably configured to shift frequencies at predetermined displacements upon impact, at or before the system attains resonance.