Imaging Performance Evaluation Method of Wide-View Underwater Acoustic Lens by Geometrical Skew Ray Analysis

スポンサーリンク

概要

• 論文の詳細を見る

• In the image formation performance of an underwater acoustic lens, the use of geometrical skew ray analysis for usually use in optical lens design field was examined. We measured acoustic pressure fields through a single lens, from which the acoustic energy distribution was obtained by using encircled energy. On the other hand, the analyzed acoustic energy distribution was evaluated by geometrical skew ray analysis under the measurement condition including the apodization of the source and effect of water temperature. We compared the measured and analyzed convergence positions, which the diameter of 80% of total amount of acoustic energy is the minimum. Then the both convergence positions correspond. As a result, it was shown that the image performance evaluation of a wide-view acoustic lens by geometrical skew ray analysis is useful.

• 2010-07-25

著者

• TAKEYAMA Norihide

  Genesia Corporation

• TSUCHIYA Takenobu

  Faculty of Engineering, Kanagawa University

• Endoh Nobuyuki

  Facullty Of Engineering Kanagawa University

• Matsumoto Sayuri

  Port and Airport Research Institute, 3-1-1 Nagase, Yokosuka, Kanagawa 239-0826, Japan

• Endoh Nobuyuki

  Faculty of Engineering, Kanagawa University, 3-27-1 Rokkakubashi, Yokohama, Kanagawa 221-8686, Japan

• Takeyama Norihide

  Genesia, Co., Ltd., 601-3-38-4 Shimorenjaku, Mitaka, Tokyo 181-0013, Japan

• Tsuchiya Takenobu

  Faculty of Engineering, Kanagawa Univ.

• MATSUMOTO Sayuri

  Port and Airport Research Institute

関連論文

• Near-Infrared and Mid-Infrared Spectroscopy with the Infrared Camera (IRC) for AKARI
• The Infrared Camera (IRC) for AKARI - Design and Imaging Performance
• Simultaneous Imaging of Multiple Fluorescent Probes in Bio-Cells
• Spectroscopic Observations of Split Comet C/2001 A2 (LINEAR)
• Abundances in Comet 19P/Borrelly at the Time of the Spacecraft Encounters
• A New Imaging System of the Corona at Norikura
• Numerical Analysis of Underwater Acoustic Lens Using Wide-Angle Parabolic Equation Method
• Electromagnetic Transducer with Convex Copper Vibration Membrane by DC Diode Sputtering Technique : Ultrasonic Transduction
• Radiation of Ultrasonic Impulse by Pseudo-Inverse Filtering in DFT Domain : Ultrasonic Transduction
• Initial observations of auroras by the multi-spectral auroral camera on board the Reimei satellite
• Imaging Performance Evaluation Method of Wide-View Underwater Acoustic Lens by Geometrical Skew Ray Analysis
• Comparison of Sound Pressure Distribution Determined by Numerical Analysis and Scaled-Up Experiment for Small Ultrasonic Probe with Lens
• Study of Reflection and Connection Materials Used for Transmitting and Condensing Scintillation Light by Means of Optical Fiber
• 3D-Simulation for temperature rise in tissue mimicking phantom with bone
• Development of Non-contact Thickness Gauging Equipment for Underwater Steel Structure

もっと見る 閉じる

スポンサーリンク