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8096183 |
Method and ultrasonic sensor for determining the height of objects disposed on a conveying device
The present invention relates to a method for determining the height of objects disposed on a conveying device, in which an ultrasonic sensor positioned in a specific relationship to the conveying...
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8038621 |
Ultrasonic diagnostic apparatus and catheter tip part detection method
An ultrasonic diagnostic apparatus includes plural ultrasonic transducers, a catheter signal detection unit and a position detection unit. The plural ultrasonic transducers are arrayed...
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8001843 |
Circular arc wide beam transmission method and apparatus for ultrasonic imaging
A circular arc wide beam transmission method includes setting parameters for a focusing circular arc and calculating a transmission delay for each of the array elements in a transmission aperture...
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7946176 |
Methods and apparatus for extracting first arrival wave packets in a structural health monitoring system
Methods and apparatus for extracting the first arrival wave packet of an acoustic signal in a structural health monitoring (SHM) system include receiving an acoustic signal transmitted between two...
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7895895 |
Method and apparatus for quantifying porosity in a component
A computer implemented method, or hardware filtration apparatus, and computer usable program code for measuring porosity in materials. An ultrasonic signal is emitted from a transmitting transducer...
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7867166 |
Statistical estimation of ultrasonic propagation parameters for aberration correction
In estimation of an aberration in propagation of an ultrasonic wave from an aperture through an aberration path, the aperture is modeled as a plurality of sources and receivers. The...
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7832275 |
Ultrasonic detection measurement system using a tunable digital filter with 4X interpolator
An ultrasonic inspection system utilizes a tunable digital filter with 4× interpolation. The system is used for scanning objects to be tested and includes a transmit/receive device to generate a ...
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7757557 |
Ultrasonic detection measurement system using a tunable digital filter with 4x interpolator
An ultrasonic inspection system utilizes a tunable digital filter with 4× interpolation. The system is used for scanning objects to be tested and includes a transmit/receive device to generate a ...
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7757558 |
Method and apparatus for inspecting a workpiece with angularly offset ultrasonic signals
A method and apparatus are provided to identify unacceptable levels of porosity, microcracking or defects attributable to thermal damage. Ultrasonic signals are introduced into the workpiece, such...
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7753847 |
Ultrasound vibrometry
A method for measuring a mechanical property of a subject includes using an ultrasonic transducer to apply ultrasonic vibration pulses to a vibration origin in the subject in an on-off time...
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7690257 |
Method and device for checking a welding seam present at one of the interior surfaces of a reactor pressure vessel
In a method and a device for testing a weld seam (8), located on the inner surface of a reactor pressure vessel (2), by which the outer circumference of an instrumentation nozzle (4) leading into...
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7681451 |
Passage detection apparatus of object
Disclosed herein is a passage detection apparatus capable of detecting a passage of an object in a specific space. The passage detection apparatus includes a transmitting device, a receiving...
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7632229 |
Range dependent weighting for spatial compound imaging
A system and method for range dependent weighting in ultrasound imaging. The system includes a transducer array, a data acquisition system, and an imaging processor. The transducer array receives a...
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7559240 |
Method and device for assessing residual service life of rolling bearing
Degradation of the lubricant due to contamination of the lubricant with wear particles or moisture, which greatly affects the service life of rolling bearings, can be detected in a cost-effective...
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7461554 |
Digital time variable gain circuit for non-destructive test instrument
In a non-destructive test instrument, there is provided a time variable gain (TVG) amplifier wherein the gain of the amplifier is dynamically changed to optimize the amplitude of a flaw echo...
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7210329 |
Method for determining temporal and amplitude threshold values of gates during ultrasound testing of spot welding joints
The invention relates to a method for determining the threshold value of screens which enable an evaluation of a sound coupling during the ultrasound testing of a series of spot welding joints of a...
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7046015 |
Ultrasonic distance measure
An ultrasonic distance measure includes: transmitting and receiving ultrasonic transducers with changeable resonant/resonance frequencies; a driving section generating a frequency-modulated drive...
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6588278 |
Ultrasonic inspection device and ultrasonic probe
An ultrasonic inspection device is constructed of an ultrasonic scanning unit, drive unit for the ultrasonic scanning unit, and a computing unit. The ultrasonic scanning unit is provided with an...
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6470749 |
Method and apparatus for pulsed ultrasonic doppler measurement of wall deposition
A method for monitoring and measuring the buildup of deposits on the inner surface of a pipeline containing flowing fluid comprises (a) transmitting a first acoustic signal into the pipeline...
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6431001 |
Obstacle detecting system having snow detecting function
An obstacle detecting system for vehicles has an ultrasonic vibrator having a vibration plate and mounted on a vehicle to transmit and receive an ultrasonic wave. An obstacle is detected in...
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6422081 |
Ultrasonic sound velocity measuring method and its apparatus
The invention relates to a method and apparatus for measuring a speed of an ultrasonic: wave propagated in a sample, even if there are bubbles in a sample. And it presupposes an ultrasonic speed...
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6401539 |
Ultrasonic imaging aberration correction system and method
An ultrasonic imaging system including an aberration correction system uses a harmonic component of the fundamental transmitted frequency for imaging, or for aberration correction, or both. By...
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6295872 |
Ultrasonic measuring instrument
The invention relates to an ultrasonic measuring instrument comprising a housing which contains a transducer for transmitting and receiving ultra-sound waves, and a rotatable mirror placed inside...
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5963882 |
Ultrasonic pulser/receiver for ultrasonic test equipment
A configuration flexible computer-controlled ultrasonic diagnostic test equipment arrangement for examining large turbine rotors incorporates improved ultrasonic signal "pulser-receiver" circuitry...
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5922962 |
Sparse two-dimensional transducer array with compound lens
A two-dimensional ultrasonic transducer for forming images. The transducer has a plurality of transducer elements for producing ultrasonic bursts in a predetermined manner, and receiving reflected...
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5897606 |
Shock vibration storing method
In a method for storing vibration waveform data sequentially detected by a vibration sensor. The vibration storing method includes detection of a reference level terminal point (P3) between a...
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5841032 |
Variable and fixed frequency pulsed phase locked loop
A measuring apparatus uses a variable and fixed frequency pulsed phase locked loop to measure the phase shift caused by a delay path to a high degree of accuracy. This accurate measurement of total...
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5831167 |
Time domain delay device measurement apparatus including sensor package
A sensing apparatus includes a sensor package for generating an output signal responsive to a sensed quantity. The sensor package includes a surface acoustic wave (SAW) sensor and driver driver...
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5804729 |
Apparatus and associated method for measuring differences in delay measurements
A sensing apparatus includes a pulse recirculating circuit operatively connected to at least one ultrasonic delay sensor or other device for recirculating pulses therethrough, and a measurement...
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5763785 |
Integrated beam forming and focusing processing circuit for use in an ultrasound imaging system
A beam forming and focusing processing circuit for use in an ultrasound imaging system. The system incorporates a plurality of the processing circuits which differentially delay imaging signals in...
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5698786 |
Differential phase velocity determining delay measurement apparatus and associated method
An apparatus includes an ultrasonic delay sensor or device having a delay related to the sensed quantity; a pulse recirculating circuit for recirculating pulses through the ultrasonic delay sensor...
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5671154 |
Signal processing method and signal processing device for ultrasonic inspection apparatus
In an ultrasonic inspection apparatus for detecting a flaw present in a target object (2) on the basis of an echo signal (b) from the target object (2), a high-frequency echo signal (b) output from...
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5648613 |
Scan assembly and method for signal discrimination
A method and apparatus for discriminating a valid return pulse from noise in a return signal received by an ultrasonic transducer in response to an interrogating pulse transmitted into a wall of a...
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5511425 |
Flaw detector incorporating DGS
Apparatus (10) for performing ultrasonic flaw testing of a material (M) or assembly. A pulser (28) generates an electrical pulse having defined characteristics. A transducer (12) converts the...
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5511424 |
Remote preamplifier and impedance matching circuit for electromagnetic acoustic transducer
A preamplification and impedance matching circuit for an electromagnetic acoustic transducer includes an impedance matching section of the circuit having input terminals for receiving radio...
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5477730 |
Rolling element bearing condition testing method and apparatus
The rolling element bearing condition testing method uses acceleration signals at frequencies over 1000 Hertz and employs band-pass and digital filtering and envelope detecting techniques. The...
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5445029 |
Calibration and flaw detection method for ultrasonic inspection of acoustically noisy materials
A method and apparatus for the ultrasonic inspection of acoustically "noisy" specimens, such as those having intrinsically coarse grain structure (e.g., turbine rotor parts made of superalloy...
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5351544 |
Measuring apparatus using an ultrasonic wave to provide flaking state detection for a specimen on the basis of freqency analysis of a wave reflected by the specimen
A measuring apparatus using an ultrasonic wave according to the invention transmits an ultrasonic wave pulse into a specimen, receives the echo reflected by the specimen and converts it into an...
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5351690 |
Ultrasonic diagnostic apparatus capable of performing switching between single beam reception and simultaneous parallel beam reception
An ultrasonic diagnostic apparatus has a probe having a plurality of channels, a receiving circuit for dividing receiving signals from the probe to deliver them in the form of "K" (K being an...
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5339691 |
Ultrasonic test system
An ultrasonic system for determining the quality of concrete under water hout inaccuracies caused by electromagnetic interference from the ultrasonic generator. An ultrasonic generator applies...
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5144839 |
Method of checking the presence of a pipeline connection between two end points
The presence of pipeline connections can be checked by the transmitting of acoustic signals from a transmitter to an acoustic sensor within the pipe. This method is used in particular in the...
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5072426 |
Self-monitoring shock wave hydrophone
The present invention relates to a hydrophone specifically designed for use in high pressure shock wave fields, comprising a thin piezoelectric polymer film secured to a rigid hoop structure,...
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5062299 |
Apparatus and method for detecting inhomogeneities in semi-plastic substances through ultrasound
A method and apparatus is reported for detecting inhomogeneities in semi-plastic substances such as toilet bars containing soap. An ultrasound probe is utilized to test the substance at an exit...
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4991440 |
Method of ultrasonically measuring thickness and characteristics of zirconium liner coextruded with zirconium tube
A coextruded zirconium tube and tube liner are monitored along their lengths by well known ultrasonic measurement techniques that are modified by the blocking out of extraneous signals at opposite...
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4937767 |
Method and apparatus for adjusting the intensity profile of an ultrasound beam
The intensity profile of an ultrasound beam in an ultrasound imaging system is adjusted by driving the individual piezoelectric crystals with drive signals having adjustable pulse durations. The...
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4836026 |
Ultrasonic imaging system
An ultrasonic imaging system which is used to provide contact imaging of a component. A transducer is scanned across a workpiece to collect image data from a scan area comprising a plurality of...
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4782452 |
Acoustic detection of milling tool touch to a workpiece
The initial contact of a rotating milling tool to a workpiece is detected in the presence of spurious noise spikes by digitally processing samples of a preprocessed vibration signal concurrently...
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4751686 |
Ultrasonic microscope
In order to replace acoustic lenses, frequency units corresponding to frequencies used by the acoustic lenses and housing transmitted pulse generating means, circulators and receiving means can be...
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4704693 |
Acoustic tool touch detector with minimized detection delay
A Machine Tool Monitor detects the sudden increase in vibration signal level when a slowly advancing cutting tool first touches the workpiece. The delay to a tool touch decision is reduced while...
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4663973 |
Ultrasonic scanning apparatus
An ultrasonic scanning apparatus includes a transducer array made up of a plurality of ultrasonic transducer elements and delay lines connected through individual switch elements to the transducer...
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