Acoustic signature testing for electronic, electromechanical, and mechanical equipment
First Claim
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1. A method for testing a navigational unit, the navigational unit including one or more of electrical, electronic, mechanical, and electromechanical components, said method comprising:
- applying at least one stimulus to the navigational unit;
receiving sound emissions from the navigational unit, the sound emissions resulting from the application of the at least one stimulus;
converting the sound emissions into one or more acoustic signatures;
comparing the acoustic signatures based on the received emissions to stored acoustic signatures, the stored acoustic signatures representative of acoustic signatures expected from the navigational unit due to application of the at least one stimulus; and
determining a status for the navigational unit based on the comparisons.
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Abstract
A method for testing a unit is described where the unit includes one or more of electrical, electronic, mechanical, and electromechanical components. The described method includes applying at least one stimulus to the unit, receiving sound emissions from the unit, converting the sound emissions into one or more acoustic signatures, comparing the acoustic signatures based on the received emissions to stored acoustic signatures expected as a result of the at least one stimulus, and determining a status for the unit based on the comparisons.
22 Citations
17 Claims
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1. A method for testing a navigational unit, the navigational unit including one or more of electrical, electronic, mechanical, and electromechanical components, said method comprising:
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applying at least one stimulus to the navigational unit; receiving sound emissions from the navigational unit, the sound emissions resulting from the application of the at least one stimulus; converting the sound emissions into one or more acoustic signatures; comparing the acoustic signatures based on the received emissions to stored acoustic signatures, the stored acoustic signatures representative of acoustic signatures expected from the navigational unit due to application of the at least one stimulus; and determining a status for the navigational unit based on the comparisons. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electromechanical unit configured to allow acoustic signature testing of said unit during operation of said unit, at least one stimulus being applied to said unit during operation of said unit, said unit comprising:
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at least one microphone located within said unit; a processor configured to receive and process signals originating from said at least one microphone, said processor programmed to communicate with an external system regarding the processed signals; and a memory configured to store at least one acoustic signature representative of an acoustic signature emanated by a good unit, said processor configured to compare an acoustic signature resulting from the stimulus applied to said unit against at least one acoustic signature resulting from the same stimuli and stored in said memory. - View Dependent Claims (9, 10, 11)
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12. A method for configuring a navigational unit for acoustic signature testing, said method comprising:
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embedding one or more microphones within the navigational unit; configuring a processing device within the navigational unit to receive inputs from the one or more microphones; programming the processing device to compare the received inputs with acoustic signature data stored within the navigational unit; and further programming the processing device to communicate data regarding the comparison of the stored acoustic signature data to the received inputs to an external system. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification