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120 条记录 (耗时 0.031 秒)

    Passive and active infrared analysis gas sensors and applicable multichannel detector assembles
    61.
    发明授权
    Passive and active infrared analysis gas sensors and applicable multichannel detector assembles 失效

    公开(公告)号：US5721430A

    公开(公告)日：1998-02-24

    申请号：US583993

    申请日：1996-01-11

    申请人： Jacob Y. Wong

    发明人： Jacob Y. Wong

    IPC分类号： G01J3/10 ,  G01J1/08 ,  G01N21/35 ,  G01N21/61

    CPC分类号： G01N21/3518 ,  G01N21/3504

    摘要： Multichannel infrared detector assemblies for use in the detection and monitoring of gas concentrations are provided. The detector assemblies include a detector housing having a port for receiving infrared radiation therethrough; a substrate mounted within the detector housing, the substrate having three apertures therein to transmit radiation entering the detector assembly therethrough; a first, a second and a third thermopile detector fabricated on the bottom side of the substrate, the hot junctions of each thermopile detector positioned over one of the apertures in the substrate so as to receive radiation transmitted through the aperture, and the cold junctions of each thermopile detector positioned over the substrate; a first interference bandpass filter mounted on the top side of the substrate so that the first filter covers the aperture above the first detector and the first filter is interposed between the port and the first detector, the first interference bandpass filter designed to pass incident radiation at a first spectral band; a second interference bandpass filter mounted on the top side of the substrate so that the second filter covers the aperture above the second detector and the second filter is interposed between the port and the second detector, the second interference bandpass filter designed to pass radiation at a second spectral band; and a third interference bandpass filter mounted on the top side of the substrate so that the third filter covers the aperture above the third detector and the third filter is interposed between the port and the third detector, the third interference bandpass filter designed to pass radiation at a third spectral band. The disclosed infrared detector assemblies can be used in traditional NDIR gas sensors having an active source or in passive infrared analysis gas sensors which use a passive infrared temperature source and the space between the detector assembly and the source as the sample chamber.

    Non-invasive quantification of glucose control, aging, and advanced maillard products by stimulated fluorescence
    62.
    发明授权
    Non-invasive quantification of glucose control, aging, and advanced maillard products by stimulated fluorescence 失效
    通过刺激荧光对葡萄糖控制，衰老和晚期美拉德产品进行非侵入性定量

    公开(公告)号：US5601079A

    公开(公告)日：1997-02-11

    申请号：US307125

    申请日：1994-09-16

    申请人： Jacob Y. Wong ,  Bent Formby ,  Charles M. Peterson

    发明人： Jacob Y. Wong ,  Bent Formby ,  Charles M. Peterson

    IPC分类号： A61B5/145 ,  A61B5/00 ,  A61B5/1455 ,  A61B5/1495 ,  G01N21/27 ,  A61B6/00

    CPC分类号： A61B5/14532 ,  A61B5/1455 ,  A61B5/6826

    摘要： An apparatus for measuring the concentration of selected solute in a solution. This apparatus is particulary suitable for measuring the concentration of blood components, such as blood late Maillard products. A beam of exposing light is imaged through a wall of a containment vessel onto a region of the sample adjacent to this wall to induce from said selected solute emission of light that includes at least one emission peak that can be used to calculate the concentration of this solute. At least one detector is positioned to maximize the strength of detected signal, if other components of this solution strongly absorb the emitted light. The exposing light is directed such that the detected signal is maximized as a function of the path of this exposing light. A particular embodiment is a low-cost, non-invasive blood Maillard products concentration detector. In this embodiment, the containment vessel is preferably one of the patient's fingers. At least two additional detected signals are monitored and processed at wavenumbers suitable for eliminating temperatures and pressure effects on the calculated blood glucose levels.

    摘要翻译： 一种用于测量溶液中所选溶质浓度的装置。 该装置特别适用于测量血液成分的浓度，如血后期美拉德产品。 将曝光光束通过容纳容器的壁成像到与该壁相邻的样品的区域上，以诱导所述选定的溶质发射光，其包括至少一个可用于计算该浓度的发射峰 溶质。 如果该解决方案的其他组件强烈地吸收发射的光，则至少设置一个检测器以使检测到的信号的强度最大化。 引导曝光光使得检测到的信号被最大化为该曝光光的路径的函数。 一个特定的实施方案是低成本，无创血液美拉德产品浓度检测器。 在该实施例中，容纳容器优选为患者手指之一。 在适于消除对计算出的血糖水平的温度和压力影响的波数下监测和处理至少两个附加的检测信号。

    Laser assisted quasi-blackbody radiation source
    63.
    发明授权
    Laser assisted quasi-blackbody radiation source 失效
    激光辅助准黑体辐射源

    公开(公告)号：US5408101A

    公开(公告)日：1995-04-18

    申请号：US909253

    申请日：1992-07-06

    申请人： Jacob Y. Wong

    发明人： Jacob Y. Wong

    IPC分类号： G01J3/10 ,  G01J5/52 ,  G01J1/00

    CPC分类号： G01J3/10 ,  G01J5/522 ,  G01J3/108

    摘要： A radiation source is presented that exhibits an improved efficiency of converting input energy into a quasi-blackbody output beam. A wavelength selective element can be included to transit one or more narrow bands of this radiation for use in spectroscopy. The intensity of the output beam can be varied quickly, thereby decreasing measurement times and enabling synchronous detection techniques to be implemented at reasonable frequencies. A feedback mechanism can be integrated into this device to enable accurate control of the blackbody temperature. This radiation source can be manufactured by conventional integrated circuit manufacturing techniques, thereby producing an inexpensive quasi-blackbody source of accurately and repeatably controlled performance.

    摘要翻译： 提出了一种辐射源，其表现出将输入能量转换成准黑体输出光束的改进的效率。 可以包括波长选择元件以过渡该辐射的一个或多个窄带以用于光谱学。 输出光束的强度可以快速变化，从而减少测量时间，并能够以合理的频率实现同步检测技术。 可以将反馈机构集成到该装置中，以便能够准确控制黑体温度。 该辐射源可以通过传统的集成电路制造技术制造，从而产生准确且可重复控制的性能的便宜的准黑体源。

    Adaptive fire detector
    64.
    发明授权
    Adaptive fire detector 失效
    自适应火灾探测器

    公开(公告)号：US5369397A

    公开(公告)日：1994-11-29

    申请号：US874394

    申请日：1992-04-27

    申请人： Jacob Y. Wong

    发明人： Jacob Y. Wong

    IPC分类号： G01J1/16 ,  G01J1/18 ,  G01N21/25 ,  G01N21/31 ,  G01N21/35 ,  G08B17/117 ,  G08B29/20 ,  G08B17/10

    CPC分类号： G01N21/255 ,  G01N21/3504 ,  G08B17/117 ,  G08B29/20 ,  G01J2001/161 ,  G01J2001/182 ,  G01N21/314 ,  G01N2201/0228 ,  G01N2201/06186 ,  G01N2201/0696

    摘要： The fire detector includes a carbon dioxide sensor and a microcomputer. When the rate of increase of the concentration of carbon dioxide at the sensor exceeds a threshold, an alarm is produced. The threshold is set at one of three possible levels by the microcomputer in response to the state of the atmosphere at the sensor as determined by the microcomputer based on several variables that are derived from the sensed concentration of carbon dioxide. The derived variables include the average concentration of carbon dioxide, the average rate of change of carbon dioxide concentration, the monotonicity of the increase or decrease of the carbon dioxide concentration and the range of concentrations sensed in each cycle of operation. The threshold setting is determined every ten seconds. In this way, the setting of the rate threshold is responsive to variations in the carbon dioxide level at the sensor that are caused by entities other than a fire, such as the presence or absence of people in a closed room.

    摘要翻译： 火灾探测器包括二氧化碳传感器和微型计算机。 当传感器中二氧化碳浓度增加的速度超过阈值时，会产生报警。 由微型计算机响应于由微型计算机确定的气氛状态，根据从感测到的二氧化碳浓度导出的几个变量，阈值被设置在三个可能的水平之一。 衍生变量包括二氧化碳的平均浓度，二氧化碳浓度的平均变化率，二氧化碳浓度的增加或减少的单调性以及在每个操作周期中感测到的浓度范围。 阈值设置每10秒钟确定一次。 以这种方式，速率阈值的设置响应于由火焰以外的实体引起的传感器处的二氧化碳水平的变化，例如在封闭房间中存在或不存在人。

    Catheter system for controlled removal by radiant energy of biological obstructions
    66.
    发明授权
    Catheter system for controlled removal by radiant energy of biological obstructions 失效
    导管系统，用于通过生物障碍物的辐射能控制去除

    公开(公告)号：US4817601A

    公开(公告)日：1989-04-04

    申请号：US47430

    申请日：1987-05-06

    申请人： Laurence A. Roth ,  Stephen J. Herman ,  Carl R. Turnquist ,  Edward L. Sinofsky ,  Jacob Y. Wong

    发明人： Laurence A. Roth ,  Stephen J. Herman ,  Carl R. Turnquist ,  Edward L. Sinofsky ,  Jacob Y. Wong

    IPC分类号： A61B18/24 ,  A61B19/00 ,  G02B6/42 ,  A61B17/36

    CPC分类号： A61B18/245 ,  G02B6/4296 ,  A61B90/39

    摘要： A catheter for delivering radiant energy, such as a laser beam, is used in a technique to controllably apply the radiant energy in a patient's body, such as in a blood vessel. The radiant energy is applied in a manner which erodes biological material and may be used to drill through vascular obstructions. The catheter emits the radiant energy from its distal end in a pattern which defines a relatively small working region in which the energy density level is sufficiently high to remove the biological material. The energy distribution is substantially uniform across the beam. Distally beyond the working region, the energy density of the beam decays sharply so that biological material beyond the working region is not removed.

    摘要翻译： 用于传递辐射能的导管（例如激光束）用于可控制地将辐射能施加在患者身体（例如血管）中的技术中。 辐射能以侵蚀生物材料的方式施加，并可用于穿过血管障碍物。 导管从其远端以限定相对小的工作区域的图案发射辐射能，其中能量密度水平足够高以去除生物材料。 能量分布在横梁上基本均匀。 远离工作区域，光束的能量密度急剧衰减，使得超出工作区域的生物材料不被去除。

    Oxygen measurement using visible radiation
    67.
    发明授权
    Oxygen measurement using visible radiation 失效
    使用可见光辐射的氧气测量

    公开(公告)号：US4730112A

    公开(公告)日：1988-03-08

    申请号：US863315

    申请日：1986-05-15

    申请人： Jacob Y. Wong

    发明人： Jacob Y. Wong

    IPC分类号： G01N21/05 ,  G01N21/39 ,  H01S5/062 ,  G01N21/61

    CPC分类号： G01J3/4338 ,  G01N21/39 ,  H01S5/0622 ,  G01N2021/052

    摘要： Apparatus for measuring the absorption of a gaseous sample and particularly suitable for measuring the concentration of gaseous oxygen makes use of a diode laser whose emission wavelength is adjacent to but spaced from the wavelength of a distinct absorption line. The diode drive current is altered to cause the junction temperature of the laser to change, thereby changing the wavelength of the emitted radiation and in effect scanning it through a range of wavelengths that includes the absorption line. The absorption is determined by a ratio technique and therefore is independent of changes in the laser output power level and drifts and changes in other parts of the optical system.

    摘要翻译： 用于测量气态样品的吸收并且特别适合于测量气态氧浓度的装置利用二极管激光器，其发射波长与不同吸收线的波长相邻但间隔开。 改变二极管驱动电流以使激光器的结温度发生变化，从而改变发射的辐射的波长并且实际上将其扫描通过包括吸收线的波长范围。 吸收由比例技术确定，因此与激光输出功率电平的变化和光学系统其他部分的漂移和变化无关。

    Self-calibrating carbon dioxide analyzer
    69.
    发明授权
    Self-calibrating carbon dioxide analyzer 失效
    自校准二氧化碳分析仪

    公开(公告)号：US4578762A

    公开(公告)日：1986-03-25

    申请号：US509920

    申请日：1983-07-01

    申请人： Jacob Y. Wong

    发明人： Jacob Y. Wong

    IPC分类号： G01J1/36 ,  G01N21/27 ,  G01N21/35 ,  G01N33/00 ,  G06F17/40 ,  G06F15/46

    CPC分类号： G01J1/36 ,  G01N21/274 ,  G01N33/0006 ,  G01N21/3504 ,  G01N2201/12723

    摘要： A carbon dioxide analyzer for medical purposes is rendered self-calibrating by continuously measuring pairs of two or three each of several components as follows:1st pair: vacuum cell, open hole and sample cell reference cell, open hole and sample cell2nd pair: vacuum cell, standard cell reference cell, standard cell3rd pair: vacuum cell, open hole reference cell, open hole4th pair: vacuum cell, standard cell, sample cell reference cell, standard cell, sample cellThe ratios of these measurement pairs are treated mathematically in a computer or microprocessor to obtain a reading for CO.sub.2 and to correct other readings and to monitor the integrity of the standard cell. A novel two-wheel chopper and mirror arrangement facilitates the measurements.

    摘要翻译： 用于医疗目的的二氧化碳分析仪通过连续地测量几个组分中的两个或三个对的对来进行自校准，如下所述：第一对：真空室，开孔和样品池参比池，开孔和样品池第二对：真空 细胞，标准细胞参考细胞，标准细胞第3对：真空细胞，露天参照细胞，开孔第4对：真空细胞，标准细胞，样品细胞参比细胞，标准细胞，样品细胞这些测定对的比例用数学方法处理 在计算机或微处理器中获得二氧化碳的读数并校正其他读数并监测标准单元的完整性。 一种新颖的两轮斩波器和镜子布置便于测量。