Abstract：
:In this paper, an improved touch probe sensor device for higher sensitivity and low contact force is reported. In order to improve the resolution, we have evaluated the sensitivity and fabricated a miniaturized sensor. The sensor transducer was 3 mm long and had higher resonance frequency. The resonance frequency of the vibrator was 937 kHz. Evaluated sensitivity was 1.0 x 10(-1) mV/nm. This value equals five times larger than that of a previous sensor. Miniaturization of the sensor device carried smaller vibration operation and higher sensitivity.
journal_name
Ultrasonicsjournal_title
Ultrasonicsauthors
Kanda T,Kurosawa MK,Higuchi Tdoi
10.1016/s0041-624x(02)00091-4subject
Has Abstractpub_date
2002-05-01 00:00:00pages
61-5issue
1-8eissn
0041-624Xissn
1874-9968pii
S0041-624X(02)00091-4journal_volume
40pub_type
杂志文章相关文献
ULTRASONICS文献大全abstract：:The propagation of non-axisymmetric guided waves in larger diameter pipes is studied in this paper by treating the guided waves as corresponding Lamb waves in an unwrapped plate. This approximation leads to a simpler method for calculating the phase velocities of hollow cylinder guided waves, which reveals a beam focu...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2005.07.002
更新日期：2006-01-01 00:00:00
abstract：:Ultrasonic modes guided along the surface of a concrete block covered by a composite plate are investigated. First of all, the propagation phenomenon is studied by predicting the dispersion curves for various modes supposed to exist in this structure. Then, focus is made on a specific mode expected to be sensitive to ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2004.01.074
更新日期：2004-04-01 00:00:00
abstract：:This paper investigates the use of magnetically active materials in the matching layer of a piezoelectric transducer. This then allows the performance of the device to be dynamically altered by applying an external field. The effect that this new matching layer has on the performance of a typical device is theoretical...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2007.08.002
更新日期：2007-12-01 00:00:00
abstract：:Aluminium sheet thickness has been calculated from ultrasonic data obtained using a send-receive, radially polarised electromagnetic acoustic transducer (EMAT). Sheets in the thickness range between 0.1 and 0.5 mm have been measured using this non-contact approach at a stand-off of up to 1.5 mm. Normal incidence shear...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/s0041-624x(01)00083-x
更新日期：2001-10-01 00:00:00
abstract：:A method for measuring the mechanical quality factor (Q factor) of materials in large-amplitude flexural vibrations was devised on the basis of the original definition of the Q factor. The Q factor, the ratio of the reactive energy to the dissipated energy, was calculated from the vibration velocity distribution. The ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2016.03.012
更新日期：2016-07-01 00:00:00
abstract：:This research paper is the experimental study to investigate the effect of ultrasound sensitivity in the pure methane gas space as the pressure and sensor distance increases. We offer the solution to overcome the low sensitivity characteristics of ultrasonic sensors in the methane gas space. This proposal shows the ph...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2019.105970
更新日期：2019-11-01 00:00:00
abstract：:A numerical study is carried out of the surface acoustic wave generation by a bulk acoustic wave in a half-infinite anisotropic half-space without piezoeffect. The efficient conversion of bulk waves into surface waves occurs due to a grating area created on the surface of the substrate. Our simulations are fully based...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2013.01.007
更新日期：2013-07-01 00:00:00
abstract：:Elasticity assessment based on bulk wave velocity (BWV) measurements is the most popular technique to characterize the anisotropic stiffness tensor in cortical bone. Typically, a cuboid bone specimen is cut with its sides along the different anatomical directions. Then, the velocity of shear and longitudinal waves pro...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2017.05.009
更新日期：2017-09-01 00:00:00
abstract：:This study investigated the effect of LIPUS on fracture healing when fractures were exposed to ultrasound at three axial distances: z=0 mm, 60 mm, and 130 mm. We applied LIPUS to rat fracture at these three axial distances mimicking the exposure condition of human fractures at different depths under the soft tissue. M...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2013.10.013
更新日期：2014-03-01 00:00:00
abstract：:When casting ceramic items in potteries, liquid 'slip' is passed from a settling tank, through overhead pipelines, before being pumped manually into the moulds. It is not uncommon for bubbles to be introduced into the slip as it passes through the complex piping network, and indeed the presence of bubbles is a major s...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2009.07.008
更新日期：2010-01-01 00:00:00
abstract：:Ultrasound image guided brain surgery (UGBS) requires an automatic and fast image segmentation method. The level-set and active contour based algorithms have been found to be useful for obtaining topology-independent boundaries between different image regions. But slow convergence limits their use in online US image s...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2020.106304
更新日期：2021-03-01 00:00:00
abstract：:Our objective was to investigate whether hemorrhage control can be achieved faster when high-intensity focused ultrasound (HIFU) is applied in the presence of ultrasound contrast agents (UCA) as compared to HIFU only application. Incisions (3 cm long and 0.5 cm deep) were produced in the livers of anesthetized rabbits...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2006.07.018
更新日期：2006-12-01 00:00:00
abstract：:Explicit integral representations for the wave fields generated by air-coupled or underwater transducers in an acoustic medium with a submerged elastic (metallic or laminate composite) plate are obtained in the form of path Fourier integrals. Together with the far-field asymptotics for the incident, reflected, transmi...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2018.10.001
更新日期：2019-04-01 00:00:00
abstract：:Ultrasonic flaw classification in weldment is an active area of research and many artificial intelligence approaches have been applied to automate this process. However, in the industrial applications, the ultrasonic flaw signals are not noise free and automatic intelligent defect classification algorithms show relati...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2018.12.001
更新日期：2019-04-01 00:00:00
abstract：:Current medical ultrasonic scanning instrumentation permits the display of fine image detail (speckle) which does not transfer useful information but degrades the apparent low contrast resolution in the image. An adaptive two-dimensional filter has been developed which uses local features of image texture to recognize...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/0041-624x(86)90072-7
更新日期：1986-01-01 00:00:00
abstract：:Shear-Horizontally (SH) polarized, ultrasonic, guided wave modes are considered in order to infer changes in the adhesive properties at several interfaces located within an adhesive bond joining two metallic plates. Specific aluminium lap-joint samples were produced, with different adhesive properties at up to four in...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2014.03.002
更新日期：2014-09-01 00:00:00
abstract：:An experimental ultrasonic sonar for use as a sensory aid with blind children is described. Novel signal processing techniques make the aid relatively simple to construct, yet allow many of its parameters to be changed in the field. In particular, the aid has two features, a variable range code and an automatic level...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/0041-624x(79)90010-6
更新日期：1979-01-01 00:00:00
abstract：:Experimental results of ultrasound of varying frequency (0.8-5.0 MHz) propagating in cold drawn wires of stainless steel and aluminium ranging in diameter from 0.25 to 1.21 mm are in close agreement with theoretical predictions. This agreement is maintained when the coupling medium between the wire and the ultrasound ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/0041-624x(89)90021-8
更新日期：1989-03-01 00:00:00
abstract：:This paper describes a completely non-contact ultrasonic method of gas flow metering using air-coupled leaky Lamb waves. To show proof of principle, a simplified representation of gas flow in a duct, comprising two separated thin isotropic plates with a gas flowing between them, has been modelled and investigated expe...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2018.04.008
更新日期：2018-09-01 00:00:00
abstract：:The purpose of this research was to develop, implement and verify a measurement technique enabling rapid and dependable characterization of ultrasound hydrophone probes beyond 20 MHz. The technique employs focused acoustic sources to optimize signal-to-noise ratio and spatial averaging correction model to account for ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/s0041-624x(02)00166-x
更新日期：2002-05-01 00:00:00
abstract：:In cancellous bone, longitudinal waves often separate into fast and slow waves depending on the alignment of bone trabeculae in the propagation path. This interesting phenomenon becomes an effective tool for the diagnosis of osteoporosis because wave propagation behavior depends on the bone structure. Since the fast w...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2008.04.011
更新日期：2008-11-01 00:00:00
abstract：:Silver epoxy was selected to bond transducer plates on glass substrates. The properties and thickness of the bonding medium affect the electrical input impedance of the transducer. Thus, the thickness of the silver epoxy bonding layer was used as a design parameter to optimize the structure for the transducer input im...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2011.11.010
更新日期：2012-04-01 00:00:00
abstract：:We studied thickness-shear and thickness-twist vibrations of a monolithic, two-pole crystal filter made from a plate of AT-cut quartz. The scalar differential equations derived by Tiersten and Smythe for electroded and unelectroded quartz plates were employed which are valid for both the fundamental and the overtone m...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2015.01.003
更新日期：2015-04-01 00:00:00
abstract：:Ultrasonic studies of the group of halogens of benzene and particularly dependence of acoustic parameters on the structure of organic liquids, demonstrate some interesting regularities in the group of these compounds in gas and liquid states. In this paper results for five cyclic liquids: bromo-, chloro-, fluoro- and ...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2006.05.146
更新日期：2006-12-22 00:00:00
abstract：:Ultrasonic techniques have been used to measure the elastic properties of bone. Eight human tibiae were used to determine and map the elastic properties of cortical and cancellous bone. The present study shows cortical bone to be at least orthotropic in its material symmetry. The mechanical properties of cortical bone...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/s0041-624x(96)00078-9
更新日期：1996-12-01 00:00:00
abstract：:The purpose of this study is to explore the feasibility of time-dependent acoustic impedance measurement by Scanning Acoustic Microscopy (SAM) for analyzing the sodium diffusion. The purpose is motivated by the fact that sodium monitoring is challenging and still in the area of exploratory analysis despite its biologi...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2018.12.013
更新日期：2019-04-01 00:00:00
abstract：:This paper presents a new method of measuring dispersion curves of leaky Lamb waves propagating in a thin plate. The measurement system is based on a lens-less line-focus transducer and its defocusing measurement technique. A new waveform processing method known as V(f, z) method is introduced for analyzing the measur...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/s0041-624x(00)00069-x
更新日期：2001-06-01 00:00:00
abstract：:The study is aimed to perform dynamic modeling of a part feeder powered by piezoelectric actuation. This part feeder consists mainly of a horizontal platform vibrated by a pair of parallel piezoelectric bimorph beams. Owing to intermittent impacts with the platform, the transported part on the platform is able to marc...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2007.02.002
更新日期：2007-06-01 00:00:00
abstract：:The paper deals with the study of the resonances of 1D periodic media composed of N elementary cells formed with two perfectly bonded layers which exhibit a high acoustic impedance contrast. In the case of a periodic bilayer structure constituted of a fluid layer and an elastic plate, it was shown in previous theoreti...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2012.11.011
更新日期：2013-03-01 00:00:00
abstract：:Experimental studies of thermal effects in high-intensity focused ultrasound (HIFU) procedures are often performed with the aid of fine wire thermocouples positioned within tissue phantoms. Thermocouple measurements are subject to several types of error which must be accounted for before reliable inferences can be mad...
journal_title：Ultrasonics
pub_type： 杂志文章
doi：10.1016/j.ultras.2010.07.007
更新日期：2011-02-01 00:00:00
