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1. 发明授权

US5796003A Acoustic imaging systems 失效
标题翻译：声像成像系统
公开(公告)号：US5796003A
公开(公告)日：1998-08-18
申请号：US594040
申请日：1996-01-30
申请人： Jaswinder S. Sandhu , Witold J. Popek , Honghui Wang
发明人： Jaswinder S. Sandhu , Witold J. Popek , Honghui Wang
IPC分类号： G01N29/06 , G01N29/28
CPC分类号： G01N29/0627 , G01N29/28 , G01N2291/048
摘要： An ultrasonic inspection system for inspecting a test object and producing substantially artifact-free images, which system includes (1) a sound source for emitting ultrasonic energy toward a test object, (2) a liquid crystal detector for detecting emitted ultrasonic energy and displaying an image, and (3) a coupling medium for sonically coupling the sound source, the test object and the detector. The ultrasonic energy is emitted at each of a plurality of frequencies within a predetermined range. It has been determined that the ultrasonic energy insonifing the object can be caused to scan the object and be angularly varied with respect thereto. Moreover, the rate of frequency scanning is substantially less that the detector image decay so as to produce a substantially flicker-free image. The angular variation is performed by rocking the sound source through a small angle, such as 2.degree. to 6.degree. relative to the liquid crystal detector. Desirably the pivot axis about which the sound source is rocked falls within the body of the sound source or locus of points through which the sound source is moved. This rocking action minimizes disturbance of the coupling medium.
摘要翻译：一种用于检查测试对象并产生基本上无伪影图像的超声波检查系统，该系统包括（1）用于向被测物体发射超声能量的声源，（2）用于检测发射的超声能量并显示图像和（3）用于声音耦合声源，测试对象和检测器的耦合介质。在预定范围内的多个频率中的每一个发射超声波能量。已经确定能够使对象的超声波能量扫描物体并且相对于其成角度地变化。此外，频率扫描的速率显着小于检测器图像衰减，以便产生基本上无闪烁的图像。角度变化通过使声源相对于液晶检测器相对于2度至6度的小角度摇动而进行。理想地，声源摇动的枢转轴落在声源的主体内或者声源被移动的点的轨迹上。这种摆动动作使耦合介质的干扰最小化。

2. 发明授权

US06321023B1 Serial imager for birefringent detector acoustic imaging systems 有权
标题翻译：用于双折射检测器声学成像系统的串行成像仪
公开(公告)号：US06321023B1
公开(公告)日：2001-11-20
申请号：US09597649
申请日：2000-06-20
申请人： Honghui Wang , Jaswinder S. Sandhu , Witold J. Popek
发明人： Honghui Wang , Jaswinder S. Sandhu , Witold J. Popek
IPC分类号： G02F111
CPC分类号： G02F1/116
摘要： A computer-readable signal bearing medium (10) has components (11, 21, 31) which act via a data processor (86) in an imaging system having an acoustic energy source (81) and a birefringent detector (84, 70) to record first data (14) from a first portion (61) of an object (60), the first portion attenuating first acoustic energy (12) at least part way to a first attenuation maximum (13, 43) along a first acousto-optic response (41) of the birefringent detector; to record second data (24) from a second portion (62) of the object, the second portion attenuating second acoustic energy (22) at least part way to a second attenuation maximum (23, 53) along a second acousto-optic response (51) of the birefringent detector; combines the data (32), and outputs a result.
摘要翻译：计算机可读信号承载介质（10）具有在具有声能源（81）和双折射检测器（84,70）的成像系统中经由数据处理器（86）作用的部件（11,21,31），从对象（60）的第一部分（61）记录第一数据（14），所述第一部分至少部分地将第一声能（12）衰减到沿着第一声光的第一衰减最大值（13,43）双折射检测器的响应（41）; 从物体的第二部分（62）记录第二数据（24），第二部分至少部分地沿第二声光响应（23,53）衰减第二声能（22）至第二衰减最大值（23,53） 51）双折射检测器; 组合数据（32），并输出结果。

3. 发明授权

US6049411A Optical imager for birefringent detector acoustic imaging systems 有权
标题翻译：用于双折射检测器声像成像系统的光学成像仪
公开(公告)号：US6049411A
公开(公告)日：2000-04-11
申请号：US172347
申请日：1998-10-14
申请人： Jaswinder S. Sandhu , Witold J. Popek , Hongui Wang
发明人： Jaswinder S. Sandhu , Witold J. Popek , Hongui Wang
IPC分类号： G01H9/00 , G02F1/11
CPC分类号： G01H9/002
摘要： Light from a collimated light source which is incident on a birefringent detector at a predetermined optimum angle interacts with the birefringent detector and is viewed by an imaging transducer in order to produce an image which shows changes in the birefringence of the birefringent detector caused by acoustic energy which has interacted with an object, the image thus showing heterogeneities in the object.
摘要翻译：以预定的最佳角度入射在双折射检测器上的准直光源的光与双折射检测器相互作用，并由成像传感器观察，以产生显示由声能引起的双折射检测器双折射变化的图像其与对象相互作用，因此图像显示对象中的异质性。

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