Supplier: ASTM International
Description: Monitoring Crack Extension in Fracture Toughness Tests by Ultrasonics Volume 4, Issue 6 (November 1976) An ultrasonic method was used to observe the onset of crack extension and to monitor continued crack growth in fracture toughness specimens during three-point bend tests. A 20-MHz transducer
Supplier: Trans-Tek, Inc.
Description: or 4-20 mA output versions also available.
- Form Factor: Stand Alone
- DC Voltage Input: Yes
- DC Current Input: Yes
- Voltage Output: Yes
Supplier: Measurement Specialties, Inc.
Description: The EPIH is a subminiature pressure sensor, specifically designed for Dynamic and High Frequency measurements with resonant frequency up to 1.7 MHz. Available with many various housings, EPIH is one of the smallest pressure sensors in the world. The EPIH is offered in pressure ranges from 0-5
- Working Pressure Range: 5 to 300 psi
- Device Category: Transducer
- Pressure Reading: Absolute, Gauge, Sealed
- Operating Temperature: -40 to 248 F
Standards and Technical Documents - Ultrasonics - Physiotherapy systems - Field specifications and methods of measurement in the frequency range 0,5 MHz to 5 MHz -- IEC 61689 ed3.0
Description: IEC 61689:2013 is applicable to ultrasonic equipment designed for physiotherapy containing an ultrasonic transducer generating continuous or quasi-continuous wave ultrasound in the frequency range 0,5 MHz to 5 MHz. This standard only relates to ultrasonic physiotherapy equipment employing a single
Supplier: American 3B Scientific (A3BS)
Description: The Amrex SynchroSonic U/20 Portable Ultrasound provides therapeutic ultrasound in an economical package. Like the U/50, it features a lightweight transducer that is sealed for underwater therapy. Features: • Lightweight standard transducer • Optional QuickConnectTM transducer &bull
Supplier: Steiner & Martins, Inc.
Description: Piezo Ceramic Transducer For Mist Generation Part Number: SMIST20F17SAN -- SIMILAR PRODUCTS Piezoelectric ceramic transducer for mist generation application. Piezo Material: SM112 Dimensions: 20mm diameter Resonant frequency fr: 1.70 MHz±50 KHz
- Diameter or Height: 20000 µm
Supplier: Ohmic Instruments Co.
Description: . They are tested and calibrated using NIST traceable standards. UPM-DT-10AV - Electronic ULTRASOUND POWER METER. Resolution 20 mW or 15 mW in grams mode. Range 0 to 30 Watts at a frequency of 0.5 to 10 MHZ. DIgital display, RS-232 interface. Carrying case.
- Form Factor: Portable / Hand Held / Mobile
- Technology: Ultrasonic
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amplifier. Priamus System Technologies AG, Bahnhofstr. 36, Schaffhausen CH-8200, Switzerland. Ultrasonic transducers High-performance ultrasonic transducers are based on piezocomposite technology. The units are available in a frequency range of 200 kHz to 20 MHz, as single elements and annular
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Quantifying Atherosclerosis: IVUS Imaging For Lumen Border Detection And Plaque Characterization
Comparing IVUS ultrasound probes, the lumen border is better depicted in images acquired with a 64-element phased-array 20 MHz transducer in comparison with those acquired with a single element mechanically rotating 45 MHz transducer.
20 MHz/40 MHz dual element transducers for high frequency harmonic imaging
...imaging can be separated into two categories: anterior segment imaging and posterior segment imaging. currently available commercial ultrasonic biomicroscopy (Ubm) systems use 35 to 50 mHz transducers for anterior segment imaging , whereas 10 to 20 mHz transducers are used for imaging...
A highly efficient 20 MHz piezo-composite transducer for nondestructive characterization of multilayer plastics
Measurement of thin barrier layer samples using the 20MHz composite transducer demonstrated consistent results for a thickness of 0.084 mm, while the standard 20 MHz transducers are only able to resolve thickness above 0.100 mm.
World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany
For the detection of the optoacoustic signals, a 7,5 MHz and a 20 MHz transducer were used.
Nonlinear ultrasound propagation through layered liquid and tissue-equivalent media: computational and experimental results at high frequency
Simulation results for beam propagation in water, tissue-mimicking phantom and water from the circular focused 20 MHz transducer .
Synthetic aperture imaging with a virtual source element
The 20 MHz transducer has a 0.25 inch diameter circular aperture and a 0.5 inch focal distance giving it .
Anisotropy in bovine skeletal muscle in vitro: frequency dependent attenuation and backscatter coefficient over a wide range of frequencies
...over the range 2 to 30 MHz and the slope of attenuation was observed to be highly anisotropic (mean values were 3.1 dB/cm.MHz for propagation along the fibers with the 5 and the 20 MHz transducers and 0.9 dB/cm...
An investigation of backscatter power spectra from cells, cell pellets and microspheres
Of note the specular reflection on the pellet surface using the 20MHz transducer , absent for the 40MHz transducer.
2-2 PZT-polymer composites for high frequency (>20 MHz) ultrasound transducers
A 20 MHz transducer was constructed to compare the technology to results from the literature.
High-Frequency Ultrasound Assessment of Antimicrobial Photodynamic Therapy In Vitro
The backscatter spectra are shown for the frequency ranges corresponding to the 6 dB bandwidths of each transducer employed (approximately 10–30 MHz for the 20 MHz transducer and 20–50 MHz for the 40 MHz transducer).
Mechanoluminescent Film Sensor for Visualizing Ultrasonic Power Distribution
Voltage and current pulse waveforms of individual pulse of the 20 MHz transducer . .
Multiple-bandwidth photoacoustic tomography
The diameters of the active areas are 10 mm for the 3.5 MHz transducer, 2 mm for the 10 MHz transducer and 3 mm for the 20 MHz transducer , respectively.
Iterative Self-Organizing Atherosclerotic Tissue Labeling in Intravascular Ultrasound Images and Comparison With Virtual Histology
We have performed our algorithm on in vitro and in vivo images ac- quired with single-element 40 MHz and 64-elements phased array 20 MHz transducers , respectively.
P6C-4 Extended System Transfer Compensation for Parametric Imaging in Ultrasonic Response Assessment of Anti-Cancer Therapies
The 20 MHz transducer had a f-number of 2.35, a relative bandwidth of 100% and an aperture diameter of 8.5mm.