公开(公告)号：US5387791A

公开(公告)日：1995-02-07

申请号：US83223

申请日：1993-06-29

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01M11/08 ,  G01L23/08 ,  G01T1/115

CPC classification number: G01M11/083

Abstract: A shock, detonation, and damage location sensor providing continuous fiber-optic means of measuring shock speed and damage location, and could be designed through proper cabling to have virtually any desired crush pressure. The sensor has one or a plurality of parallel multimode optical fibers, or a singlemode fiber core, surrounded by an elongated cladding, doped along their entire length with impurities to fluoresce in response to light at a different wavelength entering one end of the fiber(s). The length of a fiber would be continuously shorted as it is progressively destroyed by a shock wave traveling parallel to its axis. The resulting backscattered and shifted light would eventually enter a detector and be converted into a proportional electrical signals which would be evaluated to determine shock velocity and damage location. The corresponding reduction in output, because of the shortening of the optical fibers, is used as it is received to determine the velocity and position of the shock front as a function of time. As a damage location sensor the sensor fiber cracks along with the structure to which it is mounted. The size of the resulting drop in detector output is indicative of the location of the crack.

Abstract translation: 震动，爆震和损坏位置传感器提供测量冲击速度和损坏位置的连续光纤装置，并且可以通过适当的布线设计，几乎具有任何所需的压碎压力。 该传感器具有一个或多个平行的多模光纤，或由细长的包层围绕的单模光纤芯，沿着其整个长度掺杂杂质，以响应于进入光纤一端的不同波长的光而发出荧光 ）。 纤维的长度会随着平行于其轴线的冲击波逐渐破坏而持续短路。 所产生的反向散射和偏移的光将最终进入检测器并被转换成比例电信号，该信号将被评估以确定冲击速度和损坏位置。 使用由于光纤的缩短而导致的输出的相应减小，因为它被接收以确定作为时间的函数的冲击前沿的速度和位置。 作为损伤位置传感器，传感器纤维与其安装的结构一起裂开。 检测器输出中产生的下降的大小表示裂纹的位置。

公开(公告)号：US07763009B1

公开(公告)日：2010-07-27

申请号：US12034142

申请日：2008-02-20

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: A61M31/00

CPC classification number: A61B5/02152 ,  A61B5/6848 ,  A61B2562/0247 ,  A61F9/007

Abstract: A tri-functional cannula combines the functions of tissue Plasminogen Activator (tPA) solution delivery, illumination and venous pressure measurement. The cannula utilizes a tapered hollow-core optical fiber having an inlet for tPA solution, an attached fiber optic splitter configured to receive illumination light from an optical source such and a LED. A window in the cannula transmits the light to and from a central retinal vein. The return light is coupled to an optical detector to measure the pressure within the vein and determine whether an occlusion has been removed.

Abstract translation: 三功能插管结合组织纤溶酶原激活物（tPA）溶液递送，照明和静脉压测量的功能。 套管使用具有用于tPA溶液的入口的锥形中空芯光纤，被配置为接收来自光源的照明光和LED的附接光纤分离器。 套管中的一个窗口将光传送到视网膜中央静脉和/或从中央视网膜静脉。 返回光耦合到光学检测器以测量静脉内的压力并确定是否已经去除了闭塞。

公开(公告)号：US07329857B1

公开(公告)日：2008-02-12

申请号：US11389660

申请日：2006-03-24

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01J1/04 ,  G01J1/42 ,  G01J5/08 ,  G02B6/00

CPC classification number: G01J1/04 ,  G01F23/2925 ,  G01J1/0425 ,  G01J1/4228 ,  G02B6/001 ,  G02B6/4214

Abstract: A side-emitting fiber optic position sensor and method of determining an unknown position of an object by using the sensor. In one embodiment, a concentrated beam of light source illuminates the side of a side-emitting fiber optic at an unknown axial position along the fiber's length. Some of this side-illuminated light is in-scattered into the fiber and captured. As the captured light is guided down the fiber, its intensity decreases due to loss from side-emission away from the fiber and from bulk absorption within the fiber. By measuring the intensity of light emitted from one (or both) ends of the fiber with a photodetector(s), the axial position of the light source is determined by comparing the photodetector's signal to a calibrated response curve, look-up table, or by using a mathematical model. Alternatively, the side-emitting fiber is illuminated at one end, while a photodetector measures the intensity of light emitted from the side of the fiber, at an unknown position. As the photodetector moves further away from the illuminated end, the detector's signal strength decreases due to loss from side-emission and/or bulk absorption. As before, the detector's signal is correlated to a unique position along the fiber.

Abstract translation: 一种侧面发射光纤位置传感器，以及通过使用传感器来确定物体的未知位置的方法。 在一个实施例中，集中的光源束沿着光纤的长度在未知的轴向位置照射侧发射光纤的侧面。 一些这种侧面照明的光被散射到纤维中并被捕获。 当捕获的光沿着纤维向下引导时，其强度由于侧向发射从纤维的损失和纤维内的体积吸收而降低。 通过用光电检测器测量从一个（或两个）端部发射的光的强度，通过将光电检测器的信号与校准的响应曲线，查找表或 通过使用数学模型。 或者，侧发射光纤在一端被照射，而光电检测器测量在未知位置处从光纤侧发射的光的强度。 当光电检测器远离照明端移动时，检测器的信号强度由于侧发射和/或体积吸收的损失而降低。 如前所述，检测器的信号与沿着光纤的唯一位置相关。

公开(公告)号：US06853798B1

公开(公告)日：2005-02-08

申请号：US10104216

申请日：2002-03-22

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01D5/353 ,  G01K11/32 ,  G02B6/00

CPC classification number: G01K11/32 ,  G01D5/35358 ,  G02B6/0288

Abstract: A new class of optical fiber based thermal sensors has been invented. The new sensors comprise hydrogen-resistant optical fibers which are able to withstand a hot, hydrogen-containing environment as is often found in the downhole well environment.

Abstract translation: 已经发明了一类新型的基于光纤的热传感器。 新的传感器包括能耐受在井下环境中常见的热含氢环境的耐氢光纤。

公开(公告)号：US5419636A

公开(公告)日：1995-05-30

申请号：US105991

申请日：1993-08-12

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01K5/52 ,  G01K11/00 ,  G01K5/62

CPC classification number: G01K5/52

Abstract: A temperature sensor is made of optical fiber into which quasi-sinusoidal microbends have been permanently introduced. In particular, the present invention includes a graded-index optical fiber directing steady light through a section of the optical fiber containing a plurality of permanent microbends. The microbend section of the optical fiber is contained in a thermally expansive sheath, attached to a thermally expansive structure, or attached to a bimetallic element undergoing temperature changes and being monitored. The microbend section is secured to the thermally expansive sheath which allows the amplitude of the microbends to decrease with temperature. The resultant increase in the optical fiber's transmission thus allows temperature to be measured. The plural microbend section of the optical fiber is secured to the thermally expansive structure only at its ends and the microbends themselves are completely unconstrained laterally by any bonding agent to obtain maximum longitudinal temperature sensitivity. Although the permanent microbends reduce the transmission capabilities of fiber optics, the present invention utilizes this phenomenon as a transduction mechanism which is optimized to measure temperature.

Abstract translation: 温度传感器由光纤制成，准正弦微型元件已被永久引入。 特别地，本发明包括通过包含多个永久微弯曲的光纤的一部分引导稳定光的渐变折射率光纤。 光纤的微弯曲部分包含在热膨胀鞘中，附着到热膨胀结构，或者附着到经历温度变化并被监测的双金属元件。 微弯曲部分固定到热膨胀鞘，其允许微弯曲的振幅随着温度而降低。 因此，光纤传输的最终增加允许测量温度。 光纤的多个微弯曲部分仅在其端部固定到热膨胀结构，并且微弯曲本身由任何粘合剂完全不受约束，以获得最大的纵向温度敏感度。 虽然永久性微弯曲减少了光纤的传输能力，但是本发明将这种现象用作优化以测量温度的转导机制。

公开(公告)号：US5132529A

公开(公告)日：1992-07-21

申请号：US571358

申请日：1990-08-23

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01B11/16 ,  G01L1/24

CPC classification number: G01L1/245 ,  G01B11/18

Abstract: A strain gauge is made of an optical fiber into which quasi-sinusoidal microbends have been permanently introduced. The permanent microbends cause a reduction in the fiber's optical transmission, but, when the gauge is attached to a substrate that is subsequently strained, the amplitude of the deformations will diminish and the optical transmission through the fiber will increase. An apparatus and process for manufacturing these microbends into the optical fiber through a heat-set process is employed; this apparatus and process includes a testing and calibration system.

Abstract translation: 应变计由其中永久引入准正弦微弯的光纤制成。 永久性微弯导致纤维光学传输的减少，但是当将测量仪附着到随后应变的基底上时，变形的幅度将减小，并且通过光纤的光学传输将增加。 采用通过热定形方法将这些微弯曲制造成光纤的装置和方法; 该设备和过程包括测试和校准系统。