Gary B. Churchill - San Jose CA Benny K. Cheung - San Francisco CA
Assignee:
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC
International Classification:
B64C 1100
US Classification:
416 61
Abstract:
A system is provided for determining tracking error in a propeller or rotor driven aircraft by determining differences in the aerodynamic loading on the propeller or rotor blades of the aircraft. The system includes a microphone disposed relative to the blades during the rotation thereof so as to receive separate pressure pulses produced by each of the blades during the passage thereof by the microphone. A low pass filter filters the output signal produced by the microphone, the low pass filter having an upper cut-off frequency set below the frequency at which the blades pass by the microphone. A sensor produces an output signal after each complete revolution of the blades, and a recording display device displays the outputs of the low pass filter and sensor so as to enable evaluation of the relative magnitudes of the pressure pulses produced by passage of the blades by the microphone during each complete revolution of the blades.
Name / Title
Company / Classification
Phones & Addresses
Benny Cheung President
WENTWORTH PROPERTY MANAGEMENT, INC Real Estate Agent/Manager · Real Estate Agents
383 Rhode Is St STE 101, San Francisco, CA 94103 (415)2558888
Chiro-Medical Group Inc
Physical Therapy Aide
College of San Mateo Aug 2014 - Dec 2016
Student Instructor
Bix Restaurant Aug 2014 - Dec 2016
Line Cook
Education:
College of San Mateo 2014 - 2016
Uc Irvine 2009 - 2013
Bachelors, Bachelor of Arts, Economics, Business
Phillip and Sala Burton Academy 2009
University of St. Augustine For Health Sciences
Skills:
Research Social Media Teaching Microsoft Powerpoint Public Speaking Microsoft Excel