| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073603000 | Acoustic holography | 6 |
| 20090114024 | SCANNING NEAR FIELD ULTRASOUND HOLOGRAPHY - A high spatial resolution phase-sensitive technique employs a scanning near field ultrasound holography (SNFUH) methodology for imaging elastic as well as viscoelastic variations across a sample surface. SNFUH uses a near-field approach to measure time-resolved variations in ultrasonic oscillations at a sample surface. As such, it overcomes the spatial resolution limitations of conventional phase-resolved acoustic microscopy (i.e. holography) by eliminating the need for far-field acoustic lenses. | 05-07-2009 |
| 20090301199 | ULTRASONOGRAPHIC DEVICE - The receive sensitivity of an ultrasound array transducer structured with a diaphragm electro-acoustic transducer ( | 12-10-2009 |
| 20090301200 | ULTRASONIC TRANSDUCER, ULTRASONIC PROBE, AND ULTRASONIC IMAGING DEVICE - An ultrasonic transducer ( | 12-10-2009 |
| 20100319455 | DAMAGE VOLUME AND DEPTH ESTIMATION - In one embodiment, a system to characterize an anomaly in a laminate structure comprises a plurality of actuators to generate a wave signal into a structure being evaluated, a plurality of sensors to collect scattered wave data caused by energy of the wave signal being at least partially reflected or scattered by an anomaly, and a structural health monitoring unit. In some embodiments the structural health monitoring unit executes a scatter imaging algorithm to generate three dimensional image data for the anomaly from the scattered wave data, extracts a scatter volume from the from the scattered wave data, and generates a damage volume estimate and a damage depth estimate from the scattered wave data. Other embodiments may be described. | 12-23-2010 |
| 20110120222 | ACOUSTIC HOLOGRAPHY - A method of performing near- field acoustic holography comprises the following steps. Establishing ( | 05-26-2011 |
| 20150090036 | METHODS AND APPARATUS FOR HIGH-RESOLUTION CONTINUOUS SCAN IMAGING USING VOLD-KALMAN FILTERING - A method of imaging a test subject includes providing one or more moveable sensors to sense an attribute of the test subject (e.g., acoustic pressure), wherein the attribute has a tonal noise component and a broadband noise component. A rotational sensor is provided to sense a rotational velocity of a rotational element of the test subject. Each of the moveable sensors are moved along a path while continuously acquiring test data that is indicative of the rotational velocity of the rotational element, the sensed attribute, the position, and the orientation of each of the moveable sensors. A set of transfer functions corresponding to points in space that have been visited by the moveable sensors are constructed, each of the transfer functions relating the test data of the moveable sensors to the test data of the rotational sensor. A visual representation of the tonal noise component of the attribute in a region adjacent the test subject is produced using the set of transfer functions. | 04-02-2015 |
