Abstract: A load derivation method includes: a distance measurement step of measuring, by a displacement meter attached to a rim, a distance from the displacement meter to an inner surface of a tire; an internal pressure measurement step of measuring an internal pressure of the tire, by a sensor attached in a chamber of the tire; and a load derivation step of deriving, by a derivation section, a load on the tire during running, based on the measured distance and the measured internal pressure.

Abstract: An ultrasound image processing method including: calculating motion amounts of pixel regions in one frame receive signal, based on receive signal units corresponding to identical pixel regions included in at least two frame receive signals; calculating cumulative motion amounts, each corresponding to a target pixel region in the one frame receive signal, by cumulating motion amounts corresponding to pixel regions in the one frame receive signal located substantially along a direction of transmission of the ultrasound beam from a pixel region located at an upstream end of an ultrasound beam to the target pixel region; calculating enhancement amounts for receive signal units corresponding to the pixel regions included in the one frame receive signal, the enhancement amounts being based on the motion amounts and the cumulative motion amounts; and enhancing the receive signal units based on the enhancement amounts.

Abstract: A phased array transducer apparatus includes a plurality of Phases Array Subassemblies (PASAs) that are arranged in three pairs in a single housing. The PASAs are each oriented at a compound angle with respect to a component under test in an environment such as a nuclear environment. The phased array transducer apparatus is carried into the environment by a tool, and the positioning of the PASAs on the phased array transducer apparatus results in the outputting of ultrasonic beams in various directions that avoids the need for the housing to be reoriented on the tool in order to complete an inspection of the object under test.

Abstract: The invention relates to a method and to a corresponding device in which irregularities regarding each detected measurement position within a measurement surface are detected using a local measurement density. Each echo signal received in response to each detected measurement position is then weighted in order to generate an image using a data processing device such that the irregularities are adjusted.

Abstract: A fastener probe assembly includes a disc configured to rotate about a first axis of a fastener, an ultrasound probe coupled to the disc, and an encoder configured to determine an orientation of the ultrasound probe relative to the first axis of the fastener during an inspection of the fastener. The ultrasound probe is configured to interface with an axial end of the fastener, to emit ultrasound signals into the axial end of the fastener, and to receive ultrasound signals from the fastener.

Abstract: A hand-held ultrasound system includes integrated electronics within an ergonomic housing. The electronics includes control circuitry, beamforming and circuitry transducer drive circuitry. The electronics communicate with a host computer using an industry standard high speed serial bus. The ultrasonic imaging system is operable on a standard, commercially available, user computing device without specific hardware modifications, and is adapted to interface with an external application without modification to the ultrasonic imaging system to allow a user to gather ultrasonic data on a standard user computing device such as a PC, and employ the data so gathered via an independent external application without requiring a custom system, expensive hardware modifications, or system rebuilds.

Abstract: A method for measuring the tread thickness from the radially outermost belt surface within a tire to the tread surface accurately by ultrasonic measurement whatever the type of belt material is. The method includes the steps of measuring a profile of the tread surface, identifying the bottom positions of circumferentially extending grooves from the profile measured, estimating the depths from the groove bottoms to the belt surface from the identified groove bottoms and pre-created tire design data, predicting thicknesses by calculating predicted thicknesses from the tread surface to the belt surface from the relationship between the thicknesses from the identified groove bottoms to the tread surface in the profile and the estimated depths from the groove bottoms to the belt surface, and setting amplification factors for received reflected waves according to a reflection factor-thickness data map prepared beforehand in correspondence to the predicated thicknesses.

Abstract: Interactive virtual inspection of modeled objects is provided. A graphic user interface facilitates interaction between a Data Visualization and Analysis application and the inspector. The Data Visualization and Analysis application acquires non-destructive examination data that is collected with reference to an industrial component under evaluation. The acquired non-destructive examination data is transformed into a visualization defined by a volumetric representation that is rendered on at least one display device as at least one view representative of the component under evaluation. The inspector may navigate the volumetric representation to investigate the integrity of the industrial component including non-surface conditions thereof.

Abstract: A method and system for determining the position of an ultrasonic wedge and a probe is disclosed. The positioning method includes the steps of automatically determining the position of the ultrasonic wedge and the probe based on a number of parameters, including parameters that are based on the particular ultrasonic wedge and the probe as well as parameters based on the dimensions of the conduit and the girth weld.

Abstract: A system for ultrasonic inspection of a structure includes a transducer located at a first surface of the structure to transmit an ultrasonic signal from the transducer through the first surface to a second surface of the structure located substantially opposite the first surface. A plurality of retroreflector elements are located at the second surface to reflect the ultrasonic signal back toward the transducer. A method of ultrasonic inspection of a structure includes transmitting an ultrasonic signal from a transducer located at a first surface of the structure toward a second surface of the structure located substantially opposite the first surface. The ultrasonic signal is reflected back toward the transducer via a plurality of retroreflector elements disposed at the second surface.

Abstract: A method and system related to phased array ultrasonic systems identifies faults in individual element on a regular basis. The method and system are based on a simple approach of calculating energy levels in response signals from each individual element and then identifying any discontinuities or unexpected drops in energy levels sensed during a typical phased array operation, by comparing responses for individual transducer elements to the group response.

Abstract: A server enables a user at a station to scan a document. The station has a computer connected to the network, a browser installed on the computer to enable the user to browse the network, and a scanner in communication with the computer. The server has a database of scanner drivers, a driver selection system that enables the user to select a driver for the scanner from the database of scanner drivers, and a delivery system that transfers a selected driver to the computer and causes the computer to execute the driver. The user uses the browser and the driver selection system to select a driver for the scanner. The delivery system then sends the driver to the computer, and the computer executes the driver. The driver uses the scanner to scan a document, and scanning data corresponding to the document is saved in a predetermined location.

Abstract: A method for ultrasonic testing of an object, the method comprising ultrasonic scanning of a plurality of scan regions of the object; converting ultrasonic echoes of the ultrasonic scanning into a plurality of electrical signals; gating the electrical signals to provide gated signals; and wherein different gating times are used for the electrical signals.

Abstract: An apparatus and system for measuring material thickness of a test object. In one embodiment, the apparatus can include a measurement probe that can have a plurality of transducer elements that can include transmitter elements and receiver elements arranged, respectively, in on a first side and a second side of a gap. The first side and the second side can form a scan area with at least one active group that can have at least one transmitter element and at least one receiver element, which can be separated from the transmitter element in a spaced relationship.

Abstract: Systems and methods are disclosed for providing nondestructive inspection (NDI) services. For example in accordance with an embodiment of the invention, a system for remote inspection includes a nondestructive inspection (NDI) system configured to examine a structure and provide NDI data related to a damage condition of the structure, the NDI system being configured to communicate the NDI data to a remote location; and a remote computer disposed at the remote location, the remote computer being configured to receive the NDI data and provide the received NDI data for a review, the remote computer being configured to communicate an analytical result based on the review to the NDI system, the analytical result including a repair disposition decision corresponding to the damage condition.

Abstract: A spiral wound module assembly comprising: a permeate collection tube, at least one membrane envelope wound about the permeate collection tube, an outer module housing, and at least one acoustic transducer located adjacent to the permeate collection tube. Several embodiments are disclosed including a stand-alone probe adapted for insertion into the permeate collection tube. In several other embodiments, one or more transducers are secured to the inner surface of the permeate collection tube.

Abstract: A low-power triggered data acquisition system and method utilizes low-powered circuitry, comparators, and digital logic incorporated into a miniaturized device interfaced with self-generating transducer sensor inputs to detect, identify and assess impact and damage to surfaces and structures wherein, upon the occurrence of a triggering event that produces a signal greater than a set threshold changes the comparator output and causes the system to acquire and store digital data representative of the incoming waveform on at least one triggered channel. The sensors may be disposed in an array to provide triangulation and location of the impact.

Abstract: The invention is directed toward a new method for estimating and imaging the spatial and temporal mechanical behavior of materials in responses to a mechanical stimulus. This method is designed to work in inherently noisy applications, such as the imaging of the time-dependent mechanical behavior of biological tissues in vivo and using a preferred hand-held configuration of scanning.

Abstract: The present invention is an apparatus and method for determining the remaining service life of electrochemical energy generation and storage device including batteries, supercapacitors, DSSC solar cells and fuel cell. Measurements are performed by passing ultrasonic oscillations through the test object. The apparatus of the present invention comprises two arrays of transmitting and receiving ultrasonic probes between which the object being tested is affixed. Polyurethane tips are used for matching the acoustic resistance of the probes with the test object body. The apparatus positions the transmitting and the receiving probe arrays relative to each other. The calibration characteristic for determining the remaining service life of a the test object are established from the signal values from the ultrasonic probes related to the number of charge-discharge cycles obtained at various charge values.

Abstract: 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 test signal and receive an echo signal. A signal processing circuit processes the echo signal with one or more digital to analog converters for converting an analog version of the echo signal to a digital echo signal in the form of streaming digital data which is stored in a memory. The data is stored at a first data rate and read out at the second, slower data rate. An averaging decimator receives and processes the data from the memory and supplies it to an IIR filter and subsequently to an FIR filter and ultimately to a box car filter to effect processing thereon which increases the perceived resolution of the data by a given factor, preferably by a factor of 4.

Abstract: The invention is directed toward a new method for estimating and imaging the spatial and temporal mechanical behavior of materials in responses to a mechanical stimulus. This method is designed to work in inherently noisy applications, such as the imaging of the time-dependent mechanical behavior of biological tissues in vivo and using a preferred hand-held configuration of scanning.

Abstract: 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 test signal and receive an echo signal. A signal processing circuit processes the echo signal with one or more analog to digital converters for converting an analog version of the echo signal to a digital echo signal in the form of streaming digital data which is stored in a memory. The data is stored at a first data rate and read out at the second, slower data rate. An averaging decimator receives and processes the data from the memory and supplies it to an IIR filter and subsequently to an FIR filter and ultimately to a box car filter to effect processing thereon which increases the perceived resolution of the data by a given factor, preferably by a factor of 4.

Abstract: A method for ultrasonic testing of an object, wherein at least one test moment an ultrasonic test signal (S1, S2) is transmitted into the object (2), while after a particular verification period (?t1, ?t2) measured from said test moment, an ultrasonic verification signal (S1?, S2?) is transmitted into the object (2), a possible echo of said test signal (S1, S2) being received from said object (2) at a particular first measuring moment, the possible echo being accepted as being the echo (E1, E2) of said test signal (S1, S2) only when the echo (E1?, E2?) of the verification signal is received at a particular second measuring moment. In addition, the invention provides an apparatus, evidently intended and designed for carrying out such a method and a use of such an apparatus.

Abstract: An ultrasonic transducer device is pressed against the front surface of a structure, emits an ultrasonic pulse into the structure, and detects an echo profile from the structure. An indicator is activated if the echo profile includes a return pulse that at least is received from between the front surface and the back surface of the structure. An ultrasonic transducer device includes an ultrasonic transducer and a coupling element coupled to the transducer for disposition between the transducer and a surface of a structure. The coupling element serves as a delay line that allows time for quiescence in the transducer so that return pulses from shallow depths can be detected. The ultrasonic transducer is activated when multiple switches are pressed against a surface thus assuring both firm coupling and perpendicular disposition of the acoustic axis of the transducer relative to the surface.

Abstract: A form measuring instrument measures a form of a surface of an object to be measured using a contact to follow the surface. A pseudo-measurement point acquirer acquires positional coordinates of the reference point of the contact as pseudo-measurement points when the contact touches the object at a plurality of locations. A normal vector generator estimates a surface or line along the pseudo-measurement points from the pseudo-measurement points to calculate normal vectors extending from the pseudo-measurement points to the surface or line. A contact model locator locates contact models which specify the surface form of the contact so as to coincide the pseudo-measurement points with reference points of the contact models and so as to coincide attitudes of the contact on measurement with attitudes of the contact models. A measurement point calculator calculates cross points as measurement points, at which the normal vectors cross the surfaces of the located contact models.

Abstract: 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 signal. The TVG digital memory for a given TVG curve specifies and controls not only the start gain value, and the end game value, but the gain rate of change slope as well to generate TVG curve line segments.

Abstract: A method and apparatus for detecting a high pressure condition within an interrupter includes introducing high intensity ultrasonic sound into the outer wall of a vacuum interrupter through a sonic wave guide, then listening for the reflected and retransmitted response signals. The characteristics of the response signals are utilized to determine the pressure within the interrupter, and to determine when an unwanted high pressure condition exists.

Abstract: A method and apparatus for identifying echo sources in a communication path. A system that incorporates teachings of the present disclosure may include, for example, an echo measurement device (EMD) having a transmit module to transmit an echo canceller deactivation signal in a communication path of the communication system, wherein the echo canceller deactivation signal deactivates one or more echo cancellers in said communication path. The transmit module can also transmit a test signal in the communication path which is looped back at an end point identified as having an echo problem, wherein the test signal is transmitted at a remote location from the end point. The EMD can further include a detection module to detect one or more echo signals associated with the test signal. Additional embodiments are disclosed.

Abstract: A three-axis acceleration sensor having a simple construction is provided for improving shock resistance without lowering sensor sensitivity. An acceleration sensor for detecting acceleration in three orthogonal directions comprises an electrode substrate pair including electrode substrates (4) opposed to each other, and each having fixed electrodes (4c, 4b, 4a) corresponding to three axes, respectively, a diaphragm (2) acting as a movable electrode, and an umbrella-like weight (3) mounted centrally of the diaphragm (2). Acceleration is detected based on variations in capacitance between the fixed electrodes (4c, 4b, 4a) and diaphragm (2). Each electrode substrate (4) has an electret layer (1) formed to cover surfaces of the fixed electrodes (4c, 4b, 4a). At least one of the electrode substrates defines, centrally thereof, a through hole (7). A shaft portion of the umbrella-like weight (3) extends through the through hole (7) from outside, and is connected to the diaphragm (2).

Abstract: Method and implementing apparatus useful in acquiring data on acoustic features within a sample provides a pulsed acoustic probe and a stage system for effecting relative movement between the sample and the probe. The stage system is commanded such that the probe interrogates a non-rectangularly bounded space on the sample surface or within the volume of the sample. Acoustic energy reflected from or transmitted through the sample is sensed. Amplitude signals are developed from the sensed acoustic energy. Data characterizing the developed amplitude signals are stored for subsequent processing.

Abstract: An aircraft ultrasonic system for fuel gauging and battle damage detection comprises: at least one ultrasonic transducer disposed at a fuel tank of the aircraft; a first circuit for exciting the at least one ultrasonic transducer to transmit an acoustic pulse toward a surface of fuel in the tank, the at least one ultrasonic transducer operative to receive acoustic echo pulses reflected from the fuel surface and convert the acoustic echo pulses to electrical echo pulses, the at least one ultrasonic transducer also operative to receive acoustic compression wavefront pulses impinging thereon and convert the acoustic compression wavefront pulses to electrical compression wavefront pulses; and a second circuit for receiving and processing the electrical echo and compression wavefront pulses from the at least one ultrasonic transducer, the second circuit operative to perform fuel quantity measurements using the electrical echo pulses and to perform battle damage detection using the electrical compression wavefront

Abstract: An ultra sonic sound measurement is used to determine the thickness of a partial layer in a multi-layered structure with reduced boundary surface reflections. A plurality of transmission pulses are produced on a predetermined point on the structure with the help of an ultra sonic probe head. The resulting echo signals associated with a transmission pulse are recorded digitally as an HP image. A plurality of wall thickness echo periods from different running periods are superimposed in a homologous manner with the aid of a computer program.

Abstract: A method to determine a depth of an internal feature in a forging using an ultrasonic transducer including: collecting data on echoes reflected by the internal feature of ultrasonic signals transmitted into the forging; correcting the collected data to compensate for attenuation of the echoes and signals in the forging, and determining a depth of the internal feature in the forging.

Abstract: A method for inspecting a component includes exciting a number of transducers forming an array to produce an ultrasonic transmission beam (beam) focused into the component. The array and the component are separated by a standoff. A number of echo signals are generated using the transducers, and the echo signals are processed in a number of channels. The processing includes both dynamical focus and providing a dynamic aperture on receive, both of which compensate for refraction of the beam at the component/standoff interface. A single-turn inspection method includes: (a) positioning the array facing the component, (b) exciting the transducers, (c) generating a number of echo signals, (d) changing the relative angular orientation of the array and the component around an axis and repeating steps (b) and (c), and (e) processing the echo signals to form at least one processed echo signal.

Abstract: A method for inspecting a component includes exciting a number of transducers forming an array to produce an ultrasonic transmission beam (beam) focused into the component. The array and the component are separated by a standoff. A number of echo signals are generated using the transducers, and the echo signals are processed in a number of channels. The processing includes both dynamical focus and providing a dynamic aperture on receive, both of which compensate for refraction of the beam at the component/standoff interface. A single-turn inspection method includes: (a) positioning the array facing the component, (b) exciting the transducers, (c) generating a number of echo signals, (d) changing the relative angular orientation of the array and the component around an axis and repeating steps (b) and (c), and (e) processing the echo signals to form at least one processed echo signal.

Abstract: A filling-level measuring device, specifically a filling-level radar system, comprises a transmitter (1), a receiver (2) for an echo of a signal emitted by the transmitter (1), and an evaluation circuit (3) for estimating the filling level. The transmitter (1) and the receiver (2) are suitable for operation with a plurality of frequencies on the part of the emitted signal and the echo.

Abstract: A method for acoustic imaging by angle beam, which includes generating a sound wave, coupling the wave at an angle to a first surface of a test piece via a physically continuous path. The test piece also has a second surface. The angle being such that the wave progresses along a vectors at an angle to the first surface and the second surface and along the test piece via a plurality of sound reflections reflecting between the first surface and the second surface at points progressing away from the transducer location. The angle also being such that the sound reflections at the first surface produce energy at the first surface such that a first part of every reflection of the wave continues through the first surface in the form of wave through a media toward a CCD acoustic imaging camera, while a second part of the reflection continues along in the test piece.

Abstract: A method and apparatus for ultrasonic flaw detection of line focus type suitable for detection of flaws in nonmetallic materials included in an object. Ultrasonic transmitter and receiver elements of line focus type are opposed at a distance (L) with an object under test placed between them, and a maximum ultrasonic echo is obtained at a distance Lp expressed by: Lp=0.75(FT+FR)−{(CS/CW)−1}t where FT (mm) is the focal length in the medium of the ultrasonic transmitter element of line focus type, FR (mm) is the focal length in the medium of the ultrasonic receiver element line focus type, CS (m/sec) is the speed of ultrasound in an object under test, CW (m/sec) is the speed of ultrasound in the medium, and t (mm) is the thickness of the object under test.

Abstract: A method and system are disclosed for monitoring vacuum integrity in a vacuum interrupter. The method includes injecting sonic signals into a body and detecting sonic signals reflected from the body. A composite value is calculated from the reflected sonic signals and a determination made based on the composite value as to whether the vacuum is acceptable. The system includes the following components: a transducer for sending sonic signals into a body; a receiver for receiving sonic signals reflected from the body; a signal processor for calculating a composite value from the sonic signals reflected from the body; and a processing unit for determining from the composite value whether the body has an acceptable vacuum therein.

Abstract: Method and equipment for the detection and identification of particles in a suspension with the aid of acoustic signals, directed at at least one measurement volume within the suspension, via reception of acoustic reflection signals, conversion of the acoustic reflection signals into electrical reflection signals, counting the number of electrical reflection signals which have an amplitude in excess of a predetermined value and converting the count into numbers of particles which are larger than a certain size, at least one curve being composed on the basis of a cumulative count of the number of reflection signals which have an amplitude in excess of a specific value as a function of the amplitude and the at least one curve being compared with predetermined standard cumulative count curves and material properties, particle concentration, particle size distribution and/or particle characteristics, such as particle shape, particle size and standard deviation thereof, are deduced from the comparison.

Abstract: An ultra high resolution wave focusing method and apparatus is disclosed. The invention provides a focusing system having an effective numerical aperture greater than that possible using known conventional focusing techniques. By the method and apparatus of the invention, a wave of arbitrary wavefront profile and wavelength .lambda. is focused to a region of high amplitude having a spot size that approaches the fundamental limit of 0.25.lambda.. Imaging and patterning systems employing such a wave focusing method and apparatus provide ultra high resolution and ultra small feature sizes beyond the capabilities of systems utilizing conventional focusing elements.

Abstract: A method and apparatus for ultrasonic imaging which includes scanning a test specimen located in a test fixture in a predetermined scan pattern. Propagating and receiving reflected pulses of ultrasonic energy from an ultrasonic transducer directed to a surface of the test specimen. Detecting and generating data of both the amplitude and the depth of a defect in the test specimen from the pulses received from the test specimen. Merging the data of the amplitude and the data of the depth of the defect into composite data and then displaying the composite data in a three dimensional image whereby a mesh of both amplitude and depth data of the defect is displayed in a single image of the defect.

Abstract: 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 an ultrasonic transmit-receive unit (1) is A/D-converted at a high sampling frequency (f.sub.S) in only a predetermined measurement time interval (T.sub.M) in a repetitive period (T.sub.O) of an ultrasonic pulse (a) and is temporarily stored in a storage unit (12). Thereafter, the sampling data is read out at a read frequency (f.sub.R) lower than the sampling frequency (f.sub.S). A digital signal process for noise reduction using a first digital filter (18) or a synchronous adding/averaging circuit (27) is performed to only data in the measurement time interval (T.sub.M). As a result, noise included in the echo signal (b) is considerably reduced while on-line inspection is kept performed.

Abstract: The present invention is directed toward a method and apparatus for the ncontact inspection of workpieces having a plate-like portion of the first part joined via an inertia weld to the end of a second part extending away from the plate-like portion. The apparatus and method are particularly apt for the non-contact inspection of driver inflator igniter canisters for airbag applications, such canisters having a spool-shaped structure with outer walls which restrict access to the internal inertia welds for inspection. To achieve non-contact inspection, the invention comprises electromagnetic acoustic transducer means which generate a pulsed inspection signal and a detection signal. In one embodiment, the inspection signal comprises shear acoustic waves which are polarized parallel to the outer surface of the second member (e.g., the central web member of an inflator igniter canister), and a pulse/echo detection approach is employed.

Abstract: An apparatus and method are disclosed for producing acoustical reflected images from selected planes within an integrated circuit package to detect flaws within the package.

Abstract: An apparatus which measures a thickness of a layer using transverse waves of ultrasonic waves, and includes: a sensor unit having a probe for obliquely transmitting and receiving to and from the surface of a material to be measured having first and second layers with different acoustic impedances in a depth direction: an extractor for extracting, from a wave reception signal representing waves received by the probe, reflected waves from a boundary between the first and the second layers of the material; and a calculator for calculating a distance between the surface of the material and the boundary.

Abstract: An ultrasonic system and method for imaging a surface wherein a C-mode ultrasonic scan is performed over a fixed area of the surface and range gating is applied to that area to a given depth below the surface. For use of the system and method in fingerprint imaging, a live finger is placed upon a sensitive surface, the portion of the finger on the surface is scanned using the ultrasonic energy, and ultrasonic energy returned from the finger portion is received to capture an electronic image of the pattern of ridges and valleys of the fingerprint.

Abstract: An ultrasonic flaw detection device including a transmitting ultrasonic transducer for producing multiple shear wave skips between inner and outer surfaces of a test object, a plurality of receiving transducers positioned ahead of and parallel to at generally the same incident angle as the transmitting ultrasonic transducer, and a processor electrically connected to the receiving transducers so as to produce a humanly perceivable indication of the reflected energy. The receiving transducers serve to receive energy of the shear wave as reflected from discontinuities in the object. Each of the receiving transducers is electronically isolated from the other receiving transducers. The receiving transducers are connected to a single channel of the processor. A fixture is provided having a first opening for detachably receiving the transmitting ultrasonic transducer and a plurality of receiving openers receiving the receiving transducers therein.

Abstract: In an ultrasonic imaging apparatus, an object to be inspected is scanned while being irradiated by a generated ultrasonic beam. Echo signals from the object are received and a plane image and a cross-sectional image formed from the received echo signals are displayed. A marker indicating the focus position of the ultrasonic beam and a marker indicating the setting range of a detection gate are synthesized and displayed on the cross-sectional image. The plane image of the portion assigned by the focus position and the depth range on the cross-sectional image is obtained.

Abstract: An apparatus for performing ultrasonic flaw detection, wherein an ultrasonic transmitter transmits a pulse signal having a designated carrier frequency and a designated cycle count to an ultrasonic probe. An ultrasonic receiver receives the echo signal output from the ultrasonic probe. The peak frequency and the frequency bandwidth of the echo signal received by the ultrasonic receiving unit are detected by a signal analysis unit. A transmission control unit designates the carrier frequency and the cycle count of the pulse signal output from the ultrasonic transmission unit so that the detected peak frequency and the detected frequency bandwidth become a flaw detection condition peak frequency and a flaw detection condition frequency bandwidth, respectively.