A tomographic visualization of sound fields using laser diffraction
スポンサーリンク
概要
- 論文の詳細を見る
In this study, we propose a method for non-contact visualization of sound fields, generated by an ultrasonic transducer, with the use of laser diffraction.The fundamental operational principle is based on optical computerized tomography(CT).The reconstructed, two-dimensional images are the amplitude and the phase distributions of the sound fields.In order to acquire this information of the sound fields, we used a laser beam as an optical probe.The laser beam passed through a sound field perpendicular to the sound beam and was detected without any optical system by a photodiode on the opposite side.In our experiment, we used a circular transducer driven at a frequency of 1.412MHz for a sound source.The experimental results were approximately in agreement with the results we obtained by measuring with a hydrophone.
- 社団法人 日本音響学会の論文
著者
-
Nagai Keinosuke
Institute Of Applied Physics University Of Tsukuba
-
YOSHIOKA Masahiro
Institute of Engineering Mechanics and Systems, Universality of Tsukuba
-
Mizutani Koichi
Institute Of Applied Physics University Of Tsukuba
-
Yoshioka Masahiro
Institute of Engineering Mechanics and Systems,University of Tsukuba,Tsukuba-Science City,305-8573 Japan
-
Nagai Keinosuke
Institute of Engineering Mechanics and Systems,University of Tsukuba,Tsukuba-Science City,305-8573 Japan
関連論文
- Artificial Lips for Automatic Trombone Blower(Biomimetics & Innovative Design)
- Experimental Measurement of Transverse Velocities Using a Single Circular Planar Transducer by Doppler-Spectra
- Doppler Measurement of Moving Object Across the Ultrasonic Field Radiated from Circular Planar Tansducer
- Arrangements of Transmitter- and Receiver-Arrays to Collect Acoustic Holographic Data without Redundancy : Ultrasonic Imaging
- Partitioned and Linearly Approximated Impulse Responses for Rapid Calculation of Radiated Sound Fields from Rectangular Transducers
- Optical Measurement of Sound Fields Information Using Mach-Zehnder Interferometer
- Application of Time Slice to and Imaging System Using Acoustic Holography
- Temperature Distribution in Circular Space Reconstructed from Sampling Data at Unequal Intervals in Small Numbers Using Acoustic Computerized Tomography(A-CT)
- Acoustic Measurement of Temperature Distribution in a Room Using a Small Number of Transducers
- Measurement of Fine-Particle-Velocity under Spatial Frequency Domain Using a Fourier Transform Spectrometer
- SH波プレ-トモ-ドデバイスを用いる振幅-位相変調(APM)
- Ultrasonic Probe for Detecting a Three-Dimensional Vibration
- Measurement of Vibration at a Surface Using an Ultrasonic Probe
- Propagation Characteristics of Plate-Mode Waves on Wedge-Shaped Substrate
- Spatial Resolution Improvement for Ultrasonic Imaging of an Object Consisting of Multiple Planes with Level Differences Using Contour Extraction
- Quadratic-Curve Approximation of Impulse Responses to Calculate Radiated Fields from Rectangular Transducers
- Measurement of violin plate vibration by acoustical holography using boundary element method
- Numerical Reconstruction Systems from Acoustic Holograms Using the Backward Propagation Method : Ultrasonic Imaging
- Diffraction Tomography from Data Collected with Transducer and Receiver Scanned Simultaneously : Photoacoustic Spectroscopy and Ultrasonic Imaging
- An Experimental Study of Synthetic Aperture Ultrasonic Imaging by Fourier Domain Reconstruction Method (FDR) : Ultrasonic Imaging and Microscopy
- Analysis of Acoustic Field in Liquid Radiated by Dispersive Surface Acoustic Wave Transducer
- Ultrasonic Measurement of Cylindrical Objects Making Use of Ray Tracing : Ultrasonic Measurement
- Ultrasonic Images Reconstructed from Inverse Scattering Solutions : General Acoustics
- Measurement of Temperature Distribution in Space Using Ultrasound Computerized Tomography
- Rapid calculation to simulate a wind instrument usingphysical model
- An Ultrasonic Imaging System Using a Matrix-Type Transducer Array
- Generation of Bessel Beam from Equiamplitude-Driven Annular Transducer Array Consisting of a Few Elements
- 超音波回折トモグラフィのデ-タ収集用送・受波器アレイの素子間隔
- Transducer Arrays for Rapid Data Acquisition of Ultrasonic Diffraction Tomography
- 3-Dimensional Image Reconstruction of Diffraction Tomography from Data Collected with Compound Scanned Pair of Transducers
- Image Reconstruction of Ultrasonic Diffraction Tomography from Data Acquired with Transmitter and Receiver Arrays
- Imaging Properties of the Diffraction Tomography by Compound-Scanning Transmitter-Receiver Pair Transducers
- Ultrasonic Imaging Reconstructed from the Inclination Angle of a Smooth Surface
- Development of an Electromagnetic Acoustic Transducer with Multi-Wavelength for Lamb Wave
- Measurement of Two-Dimensional Temperature Distribution in Water Using Acoustooptic Interaction
- Special section on acoustic imaging
- Calculation of Acoustic Near Field from Bessel Beam Transducers with Annular Transducer Array
- Tomographic Data Collection of Sonic Fields Using Laser Diffraction
- Sonic Field Measurement Using Light Computerized Tomography
- Network-Controlled Measurement of Mean Spatial Temperature Using a Sound Probe with a Long Baseline
- Analysis of Current Estimation along Sound-Channel Axis in Central Pacific
- Visualization of Ultrasonic Beam Using Michelson Interferometer
- Temperature Distribution in a Rectangular Space Measured by a Small Number of Transducers and Reconstructed from Reflected Sounds
- Optical Measurement of Sound Fields Information Using Mach-Zehnder Interferometer
- Temperature Measurement Using a Dual Frequency Acoustic Delay Line Oscillator
- Optical Measurement of Sound Fields with Diffraction-Effect Using Mach–Zehnder Interferometer
- A tomographic visualization of sound fields using laser diffraction
- Temperature Distribution in Circular Space Reconstructed from Sampling Data at Unequal Intervals in Small Numbers Using Acoustic Computerized Tomography (A-CT)