ultrasonic phased array
Design of Polyphase Cascaded Integrator Comb Interpolator Filter for Ultrasonic Phased Array Time Delays
... gate array (FPGA), which can offer fast real-time processing in parallel, mainly consists of the AND and OR gates, and thus FPGA is very suitable for implementation of a CIC filter containing shifters and ...the ...
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Application of the factorisation method to limited aperture ultrasonic phased array data
... of ultrasonic phased array transducers (which are capable of simultaneously trans- mitting and receiving ultrasound signals across multiple array elements) has surged in the last ten years ...
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An analytical approach to objectively sizing cracks using ultrasonic phased array data
... of ultrasonic phased array inspections have been created in the finite element package PZFlex (Weidlinger Associates, CA) and the results are discussed in Section ...
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Ultrasonic phased array inspection of wire + arc additive manufacture samples using conventional and total focusing method imaging approaches
... using ultrasonic phased array ...conventional ultrasonic transducer ...and ultrasonic phased arrays were employed ...a phased array aperture of 32 elements was used ...
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Two dimensional flexural ultrasonic phased array for flow measurement
... of array elements is measured by an impedance analyser (Agilent ...an array element before the backplate is bonded to the baffle, whilst figure 4 (b) shows these plots after the backplate is ...the ...
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FPGA-Based Control System of an Ultrasonic Phased Array
... During the transmission, the acquisition unit sends a trigger signal to the control system, which converts this signal into a high voltage pulse with a time delay and width programmed according to the focal law. Each ...
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Ultrasonic phased array testing in the power generation industry : novel wedge development for the inspection of steam turbine blades roots
... pulse-echo ultrasonic techniques which are required to cover wide zones from very limited probe positions; added to this, the amount of manipulation required to perform a sensitive inspection and the need to ...
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Ultrasonic Scattered Field Distribution of One and Two Cylindrical Solids with Phased Array Technique
... Ultrasonic phased array inspection technology can detect complex geometric components using ultrasonic ...a phased array are normally generated with a time delay, which ensures a ...
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Laser induced phased arrays for remote ultrasonic imaging of additive manufactured components
... Induced Phased Arrays (LIPAs) use laser ultrasonics to generate and detect ultrasound, synthesising an ultrasonic phased array in post ...
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Flow measurement based on two dimensional flexural ultrasonic phased arrays
... the ultrasonic technology introduces fewer disturbances to the velocity profile of the flow compared with the mechanical meter, and therefore the average flow velocities measured at the two flow meters are ...the ...
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Progress in the Reliable Inspection of Cast Stainless Steel Reactor Piping Components
... of ultrasonic testing (UT) and eddy current testing (ET) inspection techniques as related to the inservice ultrasonic inspection of primary piping components in pressurized water reactors ...including ...
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Study Comparative of Parabolic and Phased Array Antenna
... The first maximum occurs at β = 0, and is denoted as the main lobe. Other maxima are called grating lobes that are undesirable and must be suppressed. By the calculations and showing in the Fig.(6a, b, c), d < λ. The ...
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Microwave integrated phased array transmitters in silicon
... a phased-array or a MIMO system depending on the ...digital array of 8 receivers where each has a 8 bit analog-to-digital converter that samples the signal with a 100MHz channel bandwidth at twice ...
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Adaptive Beam Synthesis for Phased Array Antenna
... The user has to enter relevant data in the edit boxes based on his requirement of the array antenna as shown in Fig 5.1. Click the arrow of the pop-up menu to see the list of choices of Distribution type or click ...
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Phased Array Calibration by Binary Compressed Sensing
... During the calibration process, the extracted antenna correction coefficients are evaluated for all the array channels and for each specified angular direction. The number of measurements is minimized by using a ...
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Microwave integrated phased array receivers in silicon
... an array is obtained by multiplying the received pattern of a single antenna element by an array factor, assuming identical current distribution in each antenna ...The array factor for a linear ...
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An Active Phased Array Radar Transmitter Design
... active phased array radar transmitter design using Injection-locking ...each array element is obtained by electronic tuning through injection-locking technique, and the beam- scanning capability is ...
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Development of an Ultrasonic Linear Phased Array System for Real-time Quality Monitoring of Resistance Spot Welds
... linear phased array system is able to detect voids within spot weld but is limited to only detecting voids along the path the linear phased array can ...linear phased array ...
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A 63 element 1.75 dimensional ultrasound phased array for the treatment of benign prostatic hyperplasia
... the array if the target volume extends beyond the ...the array described here was designed to accompany an ...With phased arrays a focal pat- tern can be arranged such that there is enough time for ...
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Directivity Investigation of two Annular Phased Array Transducers
... As a continuation of two previous papers ([2] [3]), it was thought to be necessary to investigate the beam directivity of annular phased array transducers. As discussed previously, annular probes are not ...
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