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1. 发明授权

US4856317A Vacuum calibration system and method for fiberoptic pressure transducer 失效
标题翻译：光纤压力传感器的真空校准系统和方法
公开(公告)号：US4856317A
公开(公告)日：1989-08-15
申请号：US189333
申请日：1988-05-02
申请人： John Pidorenko , Alan R. Hoffman , Robert F. Hodge , Wei-Min Wang
发明人： John Pidorenko , Alan R. Hoffman , Robert F. Hodge , Wei-Min Wang
IPC分类号： G01L27/00
CPC分类号： G01L27/002
摘要： A system and method for initializing and calibrating a fiber optic pressure transducer so that a measured intensity of light which varies as a function of pressure can be accurately translated to the value of pressure which produces that value of light intensity. The transducer includes an enclosed sensor tip having a diaphragm which is exposed to atmospheric pressure on the inside and the pressure to be determined on the outside as measurements are taken, the resulting pressure differential producing a related attenuation in light intensity. Calibration according to the present invention is performed by exposing the diaphragm to atmospheric pressure on the outside and sub-atmospheric pressure on the inside while transmitting light through the fiber in the usual manner. The sub-atmospheric pressure is changed gradually as simultaneous measurements are made of the intensity of light returned through the fiber and the actual value of the sub-atmospheric pressure at a number of discrete times. The paired values are stored in a look-up table which is subsequently used to determine unknown pressures from matched values of measured light intensity.
摘要翻译：用于初始化和校准光纤压力传感器的系统和方法，使得可以将测量的作为压力函数变化的光强度转化为产生该光强值的压力值。换能器包括封闭的传感器尖端，其具有在测量时暴露于内部的大气压力和要在外部确定的压力的隔膜，所得到的压力差产生光强度中的相关衰减。根据本发明的校准是通过将隔膜暴露在外部的大气压力和内部的副大气压力下进行的，同时以通常的方式透过光纤。随着同时测量通过光纤返回的光的强度和多个离散时间的次大气压力的实际值，副大气压逐渐变化。成对值存储在查找表中，随后用于从测量的光强度的匹配值确定未知压力。

2. 发明授权

US5713974A Insulation microspheres and method of manufacture 失效
标题翻译：绝缘微球及其制造方法
公开(公告)号：US5713974A
公开(公告)日：1998-02-03
申请号：US619835
申请日：1996-03-19
申请人： Alfred J. Martin , John Pidorenko
发明人： Alfred J. Martin , John Pidorenko
IPC分类号： F16L59/02 , B01J13/04 , B29C70/66 , B32B5/16 , B32B17/06 , B32B27/20 , C03B19/10 , C09D5/00 , C09D7/12 , C23C14/34 , F16L59/065 , C03B8/02
CPC分类号： B29C70/66 , B01J13/04 , C09D5/00 , C09D7/1291 , F16L59/065 , C08K3/28 , Y10S65/11
摘要： Evacuated microspheres, insulating materials constructed from such microspheres, and methods of manufacturing same provide insulation and reduce heat transfer through radiation, conduction and convection. Additionally, an infrared reflective coating is provided on a microsphere surface to reduce radiant heat transfer. A protective exterior coating is also provided to protect an exteriorly applied infrared reflective coating on such a microsphere. Furthermore, the spheroidal geometry of such microspheres restricts heat transfer to point-to-point conduction therebetween. Finally, evacuated microspheres further reduce through-heat transfer within a shell. One embodiment utilizes such evacuated microspheres in constructing an elastomeric roof coating which appreciably reduces cooling and air conditioning power costs for a building. An alternative embodiment utilizes such an elastomeric coating in constructing an exterior paint for a building. A method of evacuating such microspheres involves in-permeation of selected gases within a microsphere which reacts under sufficiently high temperatures with residual gases within the microsphere to produce by-product gases which out-permeate from within the sphere under sufficiently high temperatures. Furthermore, a method of constructing suitable glass microspheres which are suitable for evacuating via out-permeation is also described.
摘要翻译：抽出的微球，由这种微球构成的绝缘材料及其制造方法提供绝缘并减少通过辐射，传导和对流的传热。此外，在微球表面上提供红外反射涂层以减少辐射热传递。还提供保护性外部涂层以保护在这种微球上的外部应用的红外反射涂层。此外，这种微球的球形几何形状限制了热传递到它们之间的点对点传导。最后，抽真空的微球进一步减少壳内的传热。一个实施例利用这种抽空的微球体来构建弹性体屋顶涂层，其明显降低了建筑物的冷却和空调功率成本。替代实施例利用这种弹性体涂层来构建用于建筑物的外部涂料。抽空这种微球的方法涉及在微球体内的选定气体的渗透，所述微球体在足够高的温度下与微球体内的残余气体反应，以产生在足够高的温度下从球体内渗出的副产物气体。此外，还描述了适合于通过渗透抽真空的合适的玻璃微球的方法。

3. 发明授权

US4787396A Fiberoptic pressure transducer 失效
标题翻译：光纤压力传感器
公开(公告)号：US4787396A
公开(公告)日：1988-11-29
申请号：US63411
申请日：1987-06-18
申请人： John Pidorenko
发明人： John Pidorenko
IPC分类号： A61B5/0215 , G01L9/00 , A61B5/02
CPC分类号： G01L9/0077 , A61B5/02154 , A61B5/02156
摘要： A miniaturized pressure transducer, particularly suited for intravascular blood pressure measurement, utilizing a single optical fiber for transmitting light both to and from a flexible diaphragm having a light-reflecting surface on one side, the opposite side being exposed to and deflected in accordance with the pressure being measured. The end of the fiber through which light is transmitted to and reflected light received from the diaphragm is ground to form a spherical lens integral with the fiber, whereby light passing through the end of the fiber is focused at a predetermined focal point. The fiber is axially positioned so that the center of the diaphragm, which coincides with the lens axis, is at the focal point when the diaphragm is at maximum deflection, i.e., when its opposite surface is exposed to a predetermined, maximum anticipated pressure.
摘要翻译：特别适用于血管内血压测量的小型压力传感器，利用单个光纤将一个光反射表面的一个柔性膜片的光传输到一个或多个柔性膜片上，相对侧面根据测量压力。将光传输到的光纤的端部和从光阑接收的反射光被研磨以形成与光纤成一体的球面透镜，由此通过光纤的端部的光聚焦在预定的焦点处。光纤被轴向定位，使得当光阑处于最大偏转时，即当其相对表面暴露于预定的最大预期压力时，与透镜轴线重合的光阑的中心在焦点处。

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