公开(公告)号：US06693285B1

公开(公告)日：2004-02-17

申请号：US10102172

申请日：2002-03-20

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01N1506

CPC classification number: G01F23/292

Abstract: A new fluid interface position sensor has been developed, which is capable of optically determining the location of an interface between an upper fluid and a lower fluid, the upper fluid having a larger refractive index than a lower fluid. The sensor functions by measurement, of fluorescence excited by an optical pump beam which is confined within a fluorescent waveguide where that waveguide is in optical contact with the lower fluid, but escapes from the fluorescent waveguide where that waveguide is in optical contact with the upper fluid.

Abstract translation: 已经开发了一种新的流体界面位置传感器，其能够光学地确定上部流体和下部流体之间的界面的位置，上部流体具有比下部流体更大的折射率。 该传感器通过测量激发的荧光，其被限制在荧光波导内的光泵浦光激发，其中该波导与下部流体光学接触，但是从该波导与上部流体光学接触的荧光波导 。

公开(公告)号：US06965709B1

公开(公告)日：2005-11-15

申请号：US10437876

申请日：2003-05-14

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01D5/26 ,  G01D5/353 ,  G01F23/292 ,  G01J1/58 ,  G02B6/00

CPC classification number: G01D5/268 ,  G01D5/35348 ,  G01D5/3538 ,  G01F23/292 ,  G01J1/58

Abstract: A fluorescent optical position sensor and method of operation. A small excitation source side-pumps a localized region of fluorescence at an unknown position along a fluorescent waveguide. As the fluorescent light travels down the waveguide, the intensity of fluorescent light decreases due to absorption. By measuring with one (or two) photodetectors the attenuated intensity of fluorescent light emitted from one (or both) ends of the waveguide, the position of the excitation source relative to the waveguide can be determined by comparing the measured light intensity to a calibrated response curve or mathematical model. Alternatively, excitation light can be pumped into an end of the waveguide, which generates an exponentially-decaying continuous source of fluorescent light along the length of the waveguide. The position of a photodetector oriented to view the side of the waveguide can be uniquely determined by measuring the intensity of the fluorescent light emitted radially at that location.

Abstract translation: 荧光光学位置传感器及其操作方法。 小的激发源侧沿着荧光波导在未知位置泵浦局部荧光区域。 随着荧光灯沿着波导向下传播，荧光的强度由于吸收而降低。 通过用一个（或两个）光电检测器测量，从波导的一个（或两个）端发射的荧光的衰减强度，激发源相对于波导的位置可以通过将测量的光强度与校准的响应进行比较来确定 曲线或数学模型。 或者，激发光可以被泵入波导的一端，其沿着波导的长度产生指数衰减的连续的荧光源。 通过测量在该位置处径向辐射的荧光的强度，可以唯一地确定取向于观察波导侧的光电探测器的位置。

公开(公告)号：US5949219A

公开(公告)日：1999-09-07

申请号：US121975

申请日：1998-07-24

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01N21/31 ,  G01R31/36 ,  H02J7/00 ,  G01N21/41

CPC classification number: G01R31/3668 ,  G01N21/31 ,  H01M10/488 ,  G01R31/3686 ,  H01M10/0525 ,  H01M10/06 ,  Y10S320/21

Abstract: A method and apparatus for determining the instantaneous state-of-charge of a battery in which change in composition with discharge manifests itself as a change in optical absorption. In a lead-acid battery, the sensor comprises a fiber optic system with an absorption cell or, alternatively, an optical fiber woven into an absorbed-glass-mat battery. In a lithium-ion battery, the sensor comprises fiber optics for introducing light into the anode to monitor absorption when lithium ions are introduced.

Abstract translation: 用于确定电池的瞬时充电状态的方法和装置，其中具有放电的组成的变化本身表现为光吸收的变化。 在铅酸电池中，传感器包括具有吸收单元的光纤系统，或者替代地，编织成吸收的玻璃垫电池的光纤。 在锂离子电池中，传感器包括用于将光引入阳极的光纤，以便在引入锂离子时监测吸收。

公开(公告)号：US5594240A

公开(公告)日：1997-01-14

申请号：US407148

申请日：1995-03-20

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01R15/24 ,  G01R31/00

CPC classification number: G01R15/24

Abstract: A voltage monitor which uses the shift in absorption edge of crystalline material to measure strain resulting from electric field-induced deformation of piezoelectric or electrostrictive material, providing a simple and accurate means for measuring voltage applied either by direct contact with the crystalline material or by subjecting the material to an electric field.

Abstract translation: 使用结晶材料的吸收边缘的偏移来测量由压电或电致伸缩材料的电场引起的变形产生的应变的电压监视器，提供用于测量通过与结晶材料直接接触或通过与 材料到电场。

公开(公告)号：US06581445B1

公开(公告)日：2003-06-24

申请号：US09608334

申请日：2000-06-29

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01N502

CPC classification number: G01N33/246 ,  G01N21/65

Abstract: Method and system for monitoring and identifying moisture intrusion in soil such as is contained in landfills housing radioactive and/or hazardous waste. The invention utilizes the principle that moist or wet soil has a higher thermal conductance than dry soil. The invention employs optical time delay reflectometry in connection with a distributed temperature sensing system together with heating means in order to identify discrete areas within a volume of soil wherein temperature is lower. According to the invention an optical element and, optionally, a heating element may be included in a cable or other similar structure and arranged in a serpentine fashion within a volume of soil to achieve efficient temperature detection across a large area or three dimensional volume of soil. Remediation, moisture countermeasures, or other responsive action may then be coordinated based on the assumption that cooler regions within a soil volume may signal moisture intrusion where those regions are located.

Abstract translation: 用于监测和识别土壤中水分侵入的方法和系统，如容纳在容纳放射性和/或危险废物的垃圾填埋场中。 本发明利用湿土或湿土具有比干土更高的导热性的原理。 本发明采用与分布式温度感测系统连同加热装置相结合的光学时间延迟反射测量法，以便识别温度较低的土壤体积内的离散区域。 根据本发明，光学元件和任选的加热元件可以包括在电缆或其它类似结构中并且以蛇形方式布置在一定体积的土壤中以实现跨越大面积或三维体积的土壤的有效温度检测 。 然后可以基于如下假设协调补救措施，水分对策或其他响应动作：土壤容积内的较冷区域可能指示那些区域所在的湿度侵入。

公开(公告)号：US5446278A

公开(公告)日：1995-08-29

申请号：US172304

申请日：1993-12-23

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01H5/00 ,  G01P15/093 ,  H01J5/16

CPC classification number: G01P15/093 ,  G01H5/00

Abstract: A shock velocity and damage location sensor providing a means of measuring shock speed and damage location. The sensor consists of a long series of time-of-arrival "points" constructed with fiber optics. The fiber optic sensor apparatus measures shock velocity as the fiber sensor is progressively crushed as a shock wave proceeds in a direction along the fiber. The light received by a receiving means changes as time-of-arrival points are destroyed as the sensor is disturbed by the shock. The sensor may comprise a transmitting fiber bent into a series of loops and fused to a receiving fiber at various places, time-of-arrival points, along the receiving fibers length. At the "points" of contact, where a portion of the light leaves the transmitting fiber and enters the receiving fiber, the loops would be required to allow the light to travel backwards through the receiving fiber toward a receiving means. The sensor may also comprise a single optical fiber wherein the time-of-arrival points are comprised of reflection planes distributed along the fibers length. In this configuration, as the shock front proceeds along the fiber it destroys one reflector after another. The output received by a receiving means from this sensor may be a series of downward steps produced as the shock wave destroys one time-of-arrival point after another, or a nonsequential pattern of steps in the event time-of-arrival points are destroyed at any point along the sensor.

Abstract translation: 冲击速度和损坏位置传感器提供测量冲击速度和损坏位置的手段。 传感器由一系列由光纤构成的到达时间的“点”组成。 光纤传感器装置测量冲击速度，因为当沿着光纤的方向进行冲击波时，纤维传感器被逐渐压碎。 由于传感器受到冲击的干扰，接收装置接收到的光随着到达时间点的破坏而改变。 传感器可以包括弯曲成一系列环路并沿着接收光纤长度在不同地点，到达时间点融合到接收光纤的传输光纤。 在“接触点”处，其中一部分光离开发射光纤并进入接收光纤，这些环路将需要允许光通过接收光纤朝向接收装置向后传播。 传感器还可以包括单个光纤，其中到达时间点由沿着光纤长度分布的反射平面组成。 在这种结构中，由于冲击前沿沿着纤维进行，因此破坏了一个反射器。 由接收装置从该传感器接收的输出可以是随着冲击波破坏一个接一个到达时间点而产生的一系列向下步骤，或者在到达时刻到达点被破坏的情况下的无序步骤模式 在传感器的任何一点。

公开(公告)号：US5072617A

公开(公告)日：1991-12-17

申请号：US605609

申请日：1990-10-30

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01F23/16

CPC classification number: G01F23/164

Abstract: A fiber-optic liquid level sensor measures the height of a column of liquid through the hydrostatic pressure it produces. The sensor employs a fiber-optic displacement sensor to detect the pressure-induced displacement of the center of a corrugated diaphragm.

Abstract translation: 光纤液位传感器通过其产生的静水压力来测量液体柱的高度。 该传感器采用光纤位移传感器来检测波纹隔膜中心的压力引起的位移。

公开(公告)号：US07049622B1

公开(公告)日：2006-05-23

申请号：US11019841

申请日：2004-12-21

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01N21/49

CPC classification number: G01F23/292 ,  Y10S250/90 ,  Y10S250/904

Abstract: An inexpensive, optical position sensor for measuring a position or length, x, along a one-dimensional curvilinear, coordinate system. The sensor can be used, for example, to determine the position of an interface between a clear and an opaque fluid (such as crude oil and water). In one embodiment, the sensor utilizes the principle of dual-fluorescence, where a primary fiber emits primary fluorescent light and a parallel secondary fiber collects a portion of the primary fluorescent light that is not blocked by the opaque fluid. This, in turn, excites secondary fluorescence in the secondary fiber at a longer wavelength. A light detector measures the intensity of secondary fluorescence emitted from an end of the secondary fiber, which is used to calculate the unknown position or length, x. Side-emitting fibers can be used in place of, or in addition to, fluorescent fibers. The all-optical sensor is attractive for applications involving flammable liquids.

Abstract translation: 一种便宜的光学位置传感器，用于沿一维曲线坐标系测量位置或长度x。 传感器可以用于例如确定透明和不透明流体（如原油和水）之间界面的位置。 在一个实施例中，传感器利用双荧光原理，其中主光纤发射初级荧光，并且平行次级光纤收集未被不透明流体阻挡的一部分初级荧光。 这又反过来激发次级光纤中较长波长的次级荧光。 光检测器测量从次级光纤的端部发射的次级荧光的强度，其用于计算未知位置或长度x。 侧发光纤维可用于代替荧光纤维，也可用于荧光纤维。 全光学传感器对于涉及易燃液体的应用很有吸引力。

公开(公告)号：US06358748B1

公开(公告)日：2002-03-19

申请号：US09677611

申请日：2000-09-28

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01N2164

CPC classification number: G01N21/645 ,  G01N21/7703 ,  G01N2021/7709 ,  G01N2021/7786 ,  G01N2201/088

Abstract: A microbend fiber-optic chemical sensor for detecting chemicals in a sample, and a method for its use, is disclosed. The sensor comprises at least one optical fiber having a microbend section (a section of small undulations in its axis), for transmitting and receiving light. In transmission, light guided through the microbend section scatters out of the fiber core and interacts, either directly or indirectly, with the chemical in the sample, inducing fluorescence radiation. Fluorescence radiation is scattered back into the microbend section and returned to an optical detector for determining characteristics of the fluorescence radiation quantifying the presence of a specific chemical.

Abstract translation: 公开了一种用于检测样品中的化学物质的微弯纤维化学传感器及其使用方法。 该传感器包括至少一个光纤，其具有微弯曲部分（在其轴上具有小的起伏部分），用于发射和接收光。 在透射中，引导穿过微弯曲部分的光从纤维芯中散射出来，直接或间接地与样品中的化学物质相互作用，从而诱导荧光辐射。 荧光辐射被散射回微弯曲部分并返回到光学检测器，以确定定量特定化学物质存在的荧光辐射的特性。

公开(公告)号：US06172377B2

公开(公告)日：2001-01-09

申请号：US09181576

申请日：1998-10-28

Applicant: Jonathan D. Weiss

Inventor： Jonathan D. Weiss

IPC: G01N1506

CPC classification number: G01F23/292 ,  Y10S250/904

Abstract: A liquid level sensor comprising a transparent waveguide containing fluorescent material that is excited by light of a first wavelength and emits at a second, longer wavelength. The upper end of the waveguide is connected to a light source at the first wavelength through a beveled portion of the waveguide such that the input light is totally internally reflected within the waveguide above an air/liquid interface in a tank but is transmitted into the liquid below this interface. Light is emitted from the fluorescent material only in those portions of the waveguide that are above the air/liquid interface, to be collected at the upper end of the waveguide by a detector that is sensitive only to the second wavelength. As the interface moves down in the tank, the signal strength from the detector will increase.

Abstract translation: 一种液位传感器，包括含有由第一波长的光激发并以第二较长波长发射的荧光材料的透明波导。 波导的上端通过波导的斜面部分连接到具有第一波长的光源，使得输入光在波导内全部内反射在罐中的空气/液体界面之上，但被传输到液体 在这个界面下面。 只有在波导的那些在空气/液体界面之上的那些部分中才从荧光材料发射光，通过仅对第二波长敏感的检测器在波导的上端被收集。 当界面在坦克中向下移动时，来自检测器的信号强度将会增加。