公开(公告)号：US5151748A

公开(公告)日：1992-09-29

申请号：US563762

申请日：1990-08-07

申请人： Anthony J. Bur ,  Robert E. Lowry ,  Steven C. Roth ,  Charles L. Thomas ,  Francis W. Wang

发明人： Anthony J. Bur ,  Robert E. Lowry ,  Steven C. Roth ,  Charles L. Thomas ,  Francis W. Wang

IPC分类号： G01N1/30 ,  G01N11/00 ,  G01N21/64 ,  G01N33/44

CPC分类号： G01N21/6445 ,  G01N11/00 ,  G01N1/30 ,  G01N2021/6439 ,  G01N33/44

摘要： A method of measuring fluid properties of a polymer melt, undergoing shear and/or extensional flow which utilizes fluorescent anisotropy. The method utilizes a polymeric chromophore which includes a bifunctional anthracene that is covalently bonded to polybutadiene. The invention also involves an optical probe which is designed to be inserted into existing temperature and/or pressure probe ports in processing equipment. The probe includes a rotatable polarizer and emission collection fibers.

摘要翻译： 测量聚合物熔体的流体性质的方法，其经历使用荧光各向异性的剪切和/或拉伸流动。 该方法使用包含共价键合到聚丁二烯的双功能蒽的聚合物发色团。 本发明还涉及一种光学探针，其被设计成插入到处理设备中的现有温度和/或压力探测端口中。 探头包括可旋转的偏振器和排出物收集纤维。

公开(公告)号：US5384079A

公开(公告)日：1995-01-24

申请号：US1728

申请日：1993-01-06

申请人： Anthony J. Bur ,  Francis W. Wang ,  Charles L. Thomas ,  Joseph L. Rose

发明人： Anthony J. Bur ,  Francis W. Wang ,  Charles L. Thomas ,  Joseph L. Rose

IPC分类号： B29C45/76 ,  G01N21/64

CPC分类号： G01N21/643 ,  B29C45/76

摘要： A method is provided for measuring the onset of polymer solidification, i phase transitions from liquid to crystal or liquid to glass, during injection molding to detect characteristic fluorescence radiation from a dye which has been doped into the polymer at very low concentration. The method involves the use of a calibration relationship between the fluorescence intensity and temperature of the doped polymer in order to determine distinct features which characterize the onset of solidification.

摘要翻译： 提供了一种用于测量聚合物固化的开始的方法，即在注射模塑期间从液体到晶体或液体到玻璃的相变，以检测以非常低的浓度掺杂到聚合物中的染料的特征性荧光辐射。 该方法涉及使用掺杂聚合物的荧光强度和温度之间的校准关系，以确定表征固化开始的不同特征。

公开(公告)号：USH1843H

公开(公告)日：2000-03-07

申请号：US953288

申请日：1997-10-17

申请人： Anthony J. Bur ,  Steven C. Roth

发明人： Anthony J. Bur ,  Steven C. Roth

IPC分类号： G01N21/64 ,  F21V9/16 ,  G01N33/48

CPC分类号： G01N21/6445 ,  G01N2021/6439

摘要： An optical sensor containing polarizing optical components measures fluorescence anisotropy of fluorescent dyes. The measurement involves the detection of vertical and horizontal components of fluorescent light. Using Glan-Taylor and Wollaston calcite polarizers, both vertical and horizontal components are collected by separate optical fibers and measured simultaneously using a two-channel photon counter. One application of this sensor is the measurement of molecular orientation during polymer processing. Two sensor head designs are described, one of which fits into the 1/2 inch instrumentation port in polymer processing machines. To carry out process monitoring, a fluorescent dye is mixed with a polymer resin at approximately 10 ppm by weight concentration. Dyes which have geometrical asymmetry in their molecular structure or are covalently bonded to the polymer molecule are usually used. The anisotropy measurement yields information about the orientation of the dye molecule in an oriented medium. Anisotropy measurements of fluorescent dyes in media other than polymers can also be obtained using this sensor.

摘要翻译： 含有偏振光学元件的光学传感器测量荧光染料的荧光各向异性。 该测量包括检测荧光灯的垂直和水平分量。 使用Glan-Taylor和Wollaston方解石偏振器，垂直和水平分量都由分开的光纤收集，并使用双通道光子计数器同时测量。 该传感器的一个应用是聚合物处理期间分子取向的测量。 描述了两个传感器头设计，其中之一适合于聚合物加工机中的+ E，fra 1/2 + EE英寸仪表端口。 为了进行过程监测，将荧光染料与聚合物树脂以约10ppm重量浓度混合。 通常使用具有分子结构几何不对称性或与聚合物分子共价结合的染料。 各向异性测量产生关于染料分子在取向介质中的取向的信息。 使用该传感器也可以获得聚合物以外的介质中的荧光染料的各向异性测量。

公开(公告)号：US4577510A

公开(公告)日：1986-03-25

申请号：US647782

申请日：1984-09-06

申请人： Anthony J. Bur ,  Steven C. Roth

发明人： Anthony J. Bur ,  Steven C. Roth

IPC分类号： G01L9/00 ,  G01L9/08 ,  G01K7/10

CPC分类号： G01L9/0001 ,  G01L9/085 ,  Y10S73/04

摘要： Accurate dynamic pressure data in a changing thermal environment is obtained through the use of a pressure gage formed from polyvinylidene fluoride (PVDF) polymer material. The temperature compensation pressure gage has three major elements: an active PVDF transducer which obtains remote pressure readings which are uncorrected for thermal effects; a thermocouple having a short rise time allowing an output thermal signal which dynamically responds to changing thermal conditions; and a compensation amplifier circuit receiving the uncorrected pressure readings and the dynamic thermal signal and producing an output signal representing accurate pressure data which is corrected for changing thermal conditions. Also disclosed are the details of making an active PVDF transducer.

摘要翻译： 通过使用由聚偏二氟乙烯（PVDF）聚合物材料形成的压力表获得在变化的热环境中的精确动态压力数据。 温度补偿压力表有三个主要元素：主动PVDF传感器，获得未校正的热效应的远程压力读数; 具有短的上升时间的热电偶，允许动态地响应于变化的热条件的输出热信号; 以及补偿放大器电路，其接收未校正的压力读数和动态热信号，并产生表示精确压力数据的输出信号，该数据被校正以改变热条件。 还公开了制造活性PVDF传感器的细节。

公开(公告)号：US5519211A

公开(公告)日：1996-05-21

申请号：US260379

申请日：1994-06-14

申请人： Anthony J. Bur ,  Charles L. Thomas

发明人： Anthony J. Bur ,  Charles L. Thomas

IPC分类号： B29C35/02 ,  B29C35/16 ,  B29C45/76 ,  G01B11/16 ,  G01N29/20

CPC分类号： G01B11/161 ,  B29C35/0288 ,  B29C45/76 ,  B29C2037/903 ,  B29C35/16 ,  B29K2995/0041

摘要： A method and apparatus for monitoring the crystallinity and shrinkage of aolymeric resin during molding in which light is introduced into the mold cavity, from an optical fiber through a light permeable window, transmitted through the resin in the mold, reflected from the opposite side of the mold, collected again by the optical fiber sensor, and the attenuation of the light is analyzed to detect mold filling, the onset of polymer crystallization, and separation of the polymeric material from the mold wall due to shrinkage, which separation also produces the geometry of an interferometer which can be used to detect shrinkage and to measure the rate of shrinkage by counting the minima of interference fringes.

摘要翻译： 一种用于监测聚合树脂在模制过程中的结晶度和收缩率的方法和装置，其中光从光纤通过透光窗口引入到模具腔中，透光窗通过模具中的树脂，从相反的一侧反射 模具，由光纤传感器再次收集，并且分析光的衰减以检测模具填充，聚合物结晶的开始以及由于收缩而使聚合物材料与模具壁分离，该分离也产生几何形状 的干涉仪，其可用于检测收缩并通过计数干涉条纹的最小值来测量收缩率。

公开(公告)号：US5788374A

公开(公告)日：1998-08-04

申请号：US662030

申请日：1996-06-12

申请人： Anthony J. Bur ,  Kalman Migler

发明人： Anthony J. Bur ,  Kalman Migler

IPC分类号： G01K11/20

CPC分类号： G01K11/20

摘要： A method and apparatus for measuring the temperature of a liquid medium are disclosed. In accordance with the present invention, a liquid medium containing a fluorescent dye is provided. The fluorescent dye is chosen to exhibit a first fluorescence intensity at a first wavelength and a second fluorescence intensity at a second wavelength, wherein the temperature of the liquid medium may be determined in accordance with a predetermined temperature function of the first fluorescence intensity and the second fluorescence intensity. The method of the invention comprises the steps of measuring the fluorescence intensities at the first and second wavelengths; and determining the temperature of the liquid medium in accordance with the predetermined temperature function. The apparatus comprises means for measuring the first and second fluorescence intensities, and means for determining the temperature of the liquid medium in accordance with the predetermined temperature function. The apparatus preferably is a confocal optical measuring device, and preferably is capable of determining a temperature profile within the liquid medium.

摘要翻译： 公开了一种用于测量液体介质的温度的方法和装置。 根据本发明，提供了含有荧光染料的液体介质。 选择荧光染料以在第一波长处显示第一荧光强度和在第二波长处显示第二荧光强度，其中液体介质的温度可以根据第一荧光强度的预定温度函数确定，第二荧光强度的第二荧光强度 荧光强度。 本发明的方法包括以下步骤：测量第一和第二波长处的荧光强度; 以及根据预定温度函数确定液体介质的温度。 该装置包括用于测量第一和第二荧光强度的装置，以及用于根据预定温度函数确定液体介质的温度的装置。 该装置优选是共焦光学测量装置，并且优选地能够确定液体介质内的温度分布。

公开(公告)号：US07143637B1

公开(公告)日：2006-12-05

申请号：US10820956

申请日：2004-04-08

申请人： Michael McBrearty ,  Anthony J. Bur

发明人： Michael McBrearty ,  Anthony J. Bur

IPC分类号： G01N11/00

CPC分类号： G01N27/221 ,  G01N2011/006

摘要： The dielectric slit die is an instrument that is designed to measure electrical, rheological, ultrasonics, optical and other properties of a flowing liquid. In one application, it is connected to the exit of an extruder, pump or mixing machine that passes liquefied material such as molten plastic, solvents, slurries, colloidal suspensions, and foodstuffs into the sensing region of the slit shaped die. Dielectric sensing is the primary element of the slit die, but in addition to the dielectric sensor, the die contains other sensing devices such as pressure, optical fiber, and ultrasonic sensors that simultaneously yield an array of materials property data. The slit die has a flexible design that permits interchangeability among sensors and sensor positions. The design also allows for the placement of additional sensors and instrumentation ports that expand the potential data package obtained.

摘要翻译： 电介质狭缝模具是设计用于测量流动液体的电学，流变学，超声波，光学和其它性质的仪器。 在一个应用中，其连接到挤出机，泵或混合机的出口，该挤出机，泵或混合机将诸如熔融塑料，溶剂，浆料，胶体悬浮液和食品的液化材料进入狭缝状模具的感测区域。 电介质感测是狭缝模头的主要元件，但是除了电介质传感器之外，芯片还包含其他感测装置，例如压力，光纤和超声波传感器，同时产生一系列材料属性数据。 狭缝模具具有灵活的设计，允许传感器和传感器位置之间的互换性。 该设计还允许放置附加的传感器和仪器端口，从而扩展获得的潜在数据包。