Apparatus and methods for testing acoustic probes and systems

Details Apparatus and methods for testing acoustic probes and systems Apparatus and methods for testing acoustic probes and systems

2007-01-02

2007-01-02

Noland, Thomas P. (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Apparatus for measuring by use of vibration or apparatus for...

C324S686000

Reexamination Certificate

active

11319921

ABSTRACT:
Methods and apparatus are provided for testing an acoustic device that has multiple transducing elements adapted for conversion between acoustic and electrical signals. An electrical transmission signal is generated. The electrical transmission signal is transmitted to a selected transducing element. An electrical received signal is received from the acoustic device. A reference signal is generated. A capacitance associated with the selected transducing element is determined from the reference signal. Operational characteristics of the selected transducing element are diagnosed from the determined capacitance and the electrical received signal.

REFERENCES:
patent: 7007539 (2006-03-01), Gessert et al.
patent: 558424 (1977-06-01), None
Sonora Medical Systems Press Release entitled “Longmont, CO: Sonora Medical Systems Introduces First Automated Ultrasound Transducer Test Device,” Jun. 16, 2001; 2 pages.
Sonora Medical Systems, Technical Notes entitled “Understanding the FirstCall2000™ Measured Parameters,” Nov. 2002, 1 page 2 pages.
Weigang, B. et al., “The Methods and Effects of Transducer Degradation on Image Quality and the Clinical Efficacy of Diagnostic Sonography,” JDMS, Jan./Feb. 2003, pp. 3-13, vol. 19, No. 1.

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