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hydrophone
相关语句
  水听器
    The Study of Minisize Vector Hydrophone
    微型矢量水听器研究
短句来源
    Dual Sleeve Type PVDF Film Hydrophone
    双套筒式PVDF聚合物薄膜水听器
短句来源
    A PVDF film hydrophone by pour forming
    灌注成型PVDF薄膜水听器
短句来源
    THEORETICAL ANALYSIS OF ACOUSTIC SENSITIVITY OF FIBER-OPTIC HYDROPHONE
    光纤水听器声灵敏度的理论分析
短句来源
    Low acceleration-sensitivity hydrophone
    低加速度灵敏度水听器
短句来源
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  “hydrophone”译为未确定词的双语例句
    The average sensitivity from 1500Hz to 5000Hz is -151.50dB,the max value is-147.43dB,the min value is 153.40dB,with a±3dB fluctuation,while the theoretical value is-151dB.The results of the experiment prove that both the model of the extended hydrophone sensing sound signal and the theoretical analyze based on the model are right.
    在1500Hz~5000Hz范围内,测得其灵敏度平均值-151.50dB,最大值-147.43dB,最小值-153.40dB,波动±3dB,与理论值-151dB符合。
短句来源
    The sensitivity of the hydrophone can be controlled by adjusting a loadresistance in the preamplifier, the range of adjustable sensitivity is -190 dB——175 dB(re 1 V/μPa), and the frequency response is 100 Hz - 16kHz.
    灵敏度变化范围为-190dB——175dB,频率响应100Hz-16kHz。
短句来源
    This task designed a software by using VC++ to realize the three road output detections of Fiber Optic Hydrophone.
    本文采用VC++实现光纤水昕器的三路输出检测方案。
短句来源
    The results show that a cylinder hydrophone with higher sensitivity to-202.3 dB ref·1V/μPa can be developed by using 0-3 PZT/P(VDF-TFE) piezocomposites.
    研究结果表明,利用0-3型PZT/P(VDF-TFE)压电复合材料可制作出灵敏度高达-202.3 dB ref.
短句来源
    Initial study of measured pulse ultrasound field using miniature hydrophone
    微型探头测量脉冲超声场参量的初步研究
短句来源
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  hydrophone
The complex consists of a shore-based system of laser strain meters, laser nanobarograph, bottom station with a hydrophone and a temperature-sensitive element, weather station, and seismoacoustic radiator.
      
The noise emitted by a towed source is received by a drifting hydrophone with a high excess of the signal over the ambient noise, which results in a stable interference pattern of high contrast.
      
The technique reconstructs the hydrophone transfer coefficients, the array profile, and its position relative to the surface and the bottom.
      
The axial and focal distributions of sound pressure in the incident and conjugated beams were measured using a broadband PVDF membrane hydrophone.
      
The ultrasonic field is scanned by a needle hydrophone, which is moved by a micropositioner.
      
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Various fiber-optic acoustic sensors are constantly emerging recently,but most of them are aimed at application in hydroacou- stic and used for hydrophone. this report presents a fiberoptic acoustic sensor with boundary condition of the fiber clamped-free, This sensor may be used for the air-borne sound inspecting. The design of this sensor and the formulas for sensitivity calculation are presented. The results calculated by for- mulas suggested by this paper and got from the experiment. are comparable...

Various fiber-optic acoustic sensors are constantly emerging recently,but most of them are aimed at application in hydroacou- stic and used for hydrophone. this report presents a fiberoptic acoustic sensor with boundary condition of the fiber clamped-free, This sensor may be used for the air-borne sound inspecting. The design of this sensor and the formulas for sensitivity calculation are presented. The results calculated by for- mulas suggested by this paper and got from the experiment. are comparable with each other in quality. With this designed sensor, the measurable miniumn acoustic pressure is low to 1×10-4 pa. (in 100 Hz) in laboratory.

光纤声传感器种类很多,但大多着眼于水声,作水听器用。现在本文提出一种可用于空气声检测的悬臂梁式光纤声传感器。本文给出了该种传感器的实验装置,谐振频率,灵敏度的计算,同时给出了它们的实验值。用这种传感器在实验室内可测到最低声正为1×10-4Pa(100Hz时)

A dual sleeve type PVDF film hydrophone was developed by the authors. Using static analysis method, a low freguency electro-acoustic sensitivity formula was derived. Experimental hydrophone of this type with its measuring data shows bright prospect of its application.

本文提出一种采用PVDF聚合物薄膜作为压电材料的双套筒式水听器结构,并通过静态分析方法给出了水听器的低频电声灵敏度公式。理论优化值及一例该结构式水听器的实测结果均表明,这种结构具有乐观的应用前景。

By analyzing the radial-longitudinal coupling vibration of the hydrophone's back structure, the vibrating equation of the back structure has been established.From the solution and with the boundary conditions, the displacement, strain and the stress distribution of the structure have also been derived.Based on these, according to the piezoelectric equation and to the continuity condition of the strain at the contact surface between the PVDF P polymer film and the back structure, the axial acceleration...

By analyzing the radial-longitudinal coupling vibration of the hydrophone's back structure, the vibrating equation of the back structure has been established.From the solution and with the boundary conditions, the displacement, strain and the stress distribution of the structure have also been derived.Based on these, according to the piezoelectric equation and to the continuity condition of the strain at the contact surface between the PVDF P polymer film and the back structure, the axial acceleration response of the cylindrical PVDF hydrophone has been developed mathematically.Experimental data are shown to support the numerical study.

本文从分析水听器基衬的径长、耦合振动入手,建立基衬的运动方程.然后根据边界条件求得基衬的位移、应变和应力.最后由PVDF与基衬粘接处应变连续条件和压电方程导出圆管型PVDF水听器的轴向加速度响应的数学表达式,并进行了数值计算和实验验证.理论计算与实验测试结果相吻合,

 
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