Class / Patent application number | Description | Number of patent applications / Date published |
702103000 | Acoustic | 9 |
20080208505 | System and Methods For Non-Destructive Testing of Tubular Systems - Method and systems for non-destructive testing of a gas or liquid filled object at atmospheric pressure or high pressure. The method includes the steps of providing an acoustic pulse reflectometry (APR) system ( | 08-28-2008 |
20090063080 | Apparatus and method for calibrating earphones for audiometric testing - A system and method for performing audiometric testing utilizes an independently normalized audiometer and independently calibrated earphones. | 03-05-2009 |
20110153254 | System And Method For Calibration For Image-Guided Surgery - A method of calibrating a transformation of ultrasound data in an imaging system from a first coordinate system into a second coordinate system, the method comprising applying a transformation having parameters. The parameters are calibrated by imaging a planar object, extracting points corresponding to ultrasound rays intersecting the planar object, and fitting the parameters such that the points when transformed by the transformation describe a planar surface in the second coordinate system. | 06-23-2011 |
20110161037 | Inline Inspection System and Method for Calibration of Mounted Acoustic Monitoring System - An inline inspection system and method for calibrating an acoustic monitoring structure installed along a pipe. The system includes a pipe inspection vehicle; a microprocessor configured to attach a time stamp to a measured distance traveled by the pipe inspection vehicle; an acoustic source attached to the pipe inspection vehicle and configured to generate sound waves inside the pipe, the sound waves having predetermined frequencies and predetermined amplitudes; plural sensors disposed along the pipe and configured to record time of arrivals and intensities of the sound waves generated by the acoustic source; and a processing unit configured to communicate with the plural sensors and receive the time of arrivals, intensities and frequencies of the sound waves from the plural sensors. The processing unit calibrates the acoustic monitoring structure by calculating a distance between the acoustic source and a first sensor of the plural sensors. | 06-30-2011 |
20110161038 | System and Method for Calibration of Mounted Acoustic Monitoring System with Mapping Unit - An inline inspection system and method for calibrating an acoustic monitoring structure installed along a pipe. The system includes a pipe inspection vehicle, an acoustic source configured to generate sound waves inside the pipe, a mapping unit configured to record three dimensional motion data associated with the mapping unit, a microprocessor configured to attach time stamps to the three dimensional motion data; plural sensors disposed along the pipe and configured to record time of arrivals, intensities and frequencies of the sound waves generated by the acoustic source, and a processing unit configured to calibrate the acoustic monitoring structure based on the received time of arrivals, amplitudes and frequencies of the sound waves from the plural sensors, and calculated three dimensional spatial positions of the vehicle and associated time stamps. | 06-30-2011 |
20120101764 | METHOD AND APPARATUS FOR ADJUSTING THE LEVEL OF A RESPONSE SIGNAL FROM AN ULTRASOUND TRANSDUCER - A method and apparatus for dynamically adjusting the level of a response signal from an ultrasound transducer is disclosed. During a calibration phase, a description of a gain profile of a level adjuster is set dependent upon an expected response signal for a type of object to be tested and the description is stored in memory. During a measurement phase for an object under test, a description of a gain profile is selected for the type of the object under test and a gain profile is determined from the selected description. The response signal from the object under test is passed through a level adjuster and the level of the response signal is adjusted dynamically in accordance with the gain profile. The description of the gain profile is selected with reference to an expected response either by operator interaction with a user interface or automatically. | 04-26-2012 |
20120143550 | DYNAMICALLY SELF-ADJUSTING SENSOR - A dynamically self-adjusting sensor is disclosed. In one embodiment, a sample module repeatedly generates an electronic signal related to a characteristic of an environment. A window module receives the electronic signal and provides an average signal for a pre-defined number of the electronic signals. A delta comparator module receives the electronic signal from the sample module and compares the electronic signal with a previously received electronic signal from the sample module to establish a change, wherein an output is generated if the change is greater than or equal to a threshold, the delta comparator module further receives the average signal from the window module and compares the average signal with a previously received average signal from the window module to establish an average change, wherein the output is generated if the change is greater than or equal to a threshold. | 06-07-2012 |
20140195188 | BOREHOLE ACOUSTIC NOISE MEASUREMENT AND PROCESSING - In some embodiments, an apparatus and a system, as well as a method and an article, may operate to acquire acoustic noise data by one or more receivers, the acoustic noise provided by a passive source comprising a down hole tool body moving with in a borehole, and/or a positioning device or a measurement device attached to the tool body. Additional operations may include processing the acoustic noise data to determine receiver calibration parameters, and/or formation properties. Additional apparatus, systems, and methods are disclosed. | 07-10-2014 |
20150316513 | METHOD AND APPARATUS FOR SCANNING A TEST OBJECT - The present disclosure relates to a method and an apparatus for scanning a test object. A reference object is scanned to build a gain correction map including gain values for scanning points on a surface of the reference object. The test object is also scanned to obtain measurements for scanning points on a surface of the test object. Amplitudes of the measurements obtained for the scanning points on the surface of the test object are normalized using the gain values of the gain correction map. The apparatus has a probe mounted on a mechanical scanner, and a controller controlling the scanning and normalizing operations. The method and apparatus can be used to create an image of the test object for non-destructive testing. | 11-05-2015 |