On-board ultrasonic frequency spectrum and image generation
First Claim
1. A portable apparatus for testing the condition of a machine or device using ultrasonic signals, comprising:
- an array of ultrasonic sensors for receiving said ultrasonic signals transmitted from the machine or device;
a heterodyne circuit coupled to receive output signals from the ultrasonic sensors and convert the output signals to a heterodyned audio signal; and
a digital spectrum analyzer integral to the portable apparatus configured to perform real-time fast fourier transformations and time series on the heterodyned audio signal.
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Accused Products
Abstract
A portable apparatus for determining testing the condition of a machine or device using ultrasonic signals with an array of ultrasonic sensors for receiving an ultrasonic signal transmitted from the machine or device. The apparatus possesses a heterodyne circuit coupled to receive the output signals from the ultrasonic sensors and convert the output signals to a heterodyned audio signal to be analyzed via a digital spectrum analyzer integral to the portable apparatus. The digital spectrum analyzer performs real-time fast fourier transformations on the heterodyned audio signal. After analyzing the signals, the hand held device uses a variety of audiovisual cues to direct a user to portions of the machine in need of repair or monitoring.
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Citations
24 Claims
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1. A portable apparatus for testing the condition of a machine or device using ultrasonic signals, comprising:
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an array of ultrasonic sensors for receiving said ultrasonic signals transmitted from the machine or device; a heterodyne circuit coupled to receive output signals from the ultrasonic sensors and convert the output signals to a heterodyned audio signal; and a digital spectrum analyzer integral to the portable apparatus configured to perform real-time fast fourier transformations and time series on the heterodyned audio signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification