Search Results - microphone

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Portable Railroad Spike Inspection System based on Acoustic Signals
Reference #: 01567 The University of South Carolina is offering licensing opportunities for Portable Railroad Spike Inspection System based on Acoustic Signals Background: It is reported that broken spikes were observed frequently, including cut spikes, screw spikes, and driven spikes that were used to restrict both tie plates and rails. Since the...
Published: 3/27/2023   |   Inventor(s): Yu Qian, Jun Liu
Keywords(s): acoustic emission, hammer excitation, microphone, non-destructive testing, railroad spike, sound wave frequency and pattern, wave propagation
Category(s): Engineering and Physical Sciences
Flush-Mount Sensor Packaging for Superior Aeroacoustics Instrumentation
Batch Fabrication Decreases Cost Per Sensor, Lowering Aircraft Fuselage Array ExpensesThis improved packaging design protects and optimizes microphone sensors that are used in and around airplanes to help locate and reduce excessive aviation noise, an environmental and human health hazard. Passenger travel in airplanes is expected to increase from 732...
Published: 6/27/2021   |   Inventor(s): Mark Sheplak, Tiffany Reagan, Dylan Alexander
Keywords(s): Aeroacoustics, Aviation Noise, Measurement, MEMS, Microphone, packaging, transducers
Category(s): Technology Classifications > Engineering > Electrical, Technology Classifications > Engineering > Mechanical