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    Reflection densitometer
    12.
    发明授权
    Reflection densitometer 失效
    反射密度计

    公开(公告)号：US5173750A

    公开(公告)日：1992-12-22

    申请号：US475575

    申请日：1990-02-06

    Applicant: Joseph F. Laukaitis

    Inventor： Joseph F. Laukaitis

    IPC: G01J1/16 ,  G01J1/18 ,  G01J1/44 ,  G01N21/27

    CPC classification number: G01J1/16 ,  G01N21/27 ,  G01J2001/1694 ,  G01J2001/184 ,  G01J2001/4433 ,  G01N21/4738 ,  G01N2201/0621

    Abstract: A reflection densitometer includes a light source and a photodetector having an output which has a signal component characteristic of the amount of reflected light received from a surface to be measured and a noise component. The noise component of the output is isolated in time by switching the light source on and off so as to create alternating first and second time periods during which the output of the photodetector is characteristic of only the noise component and in which the output of the photodetector is characteristic of both the signal component plus the noise component, respectively. The output of the photodetector during the second time period is subtracted from the output during the first time period to obtain a signal characteristic of only the output of the photodetector characteristic of relected light received. The signal is held constant during the first and second periods by a sample and hold circuit adapted to sample the signal during the second periods and to hold the sampled signal during the first periods.

    Abstract translation: 反射光密度计包括光源和具有输出的光电检测器，该输出具有从被测量表面接收的反射光的信号分量特性和噪声分量。 通过切换光源来输出的噪声分量在时间上是隔离的，以便产生交替的第一和第二时间段，在该时间段期间，光电检测器的输出仅具有噪声分量，并且其中光电检测器的输出 分别是信号分量加噪声分量的特征。 在第一时间段期间，从第二时间段的光电检测器的输出中减去输出，以获得仅接收的所选择的光的光检测器特性的输出的信号特性。 信号在第一和第二周期期间由采样和保持电路保持恒定，该采样和保持电路适于在第二周期期间对信号进行采样并且在第一周期期间保持采样信号。

    Apparatus for determining the concentration of a light-absorbing material in blood
    13.
    发明授权
    Apparatus for determining the concentration of a light-absorbing material in blood 失效
    用于测定血液中吸光材料浓度的装置

    公开(公告)号：US4832484A

    公开(公告)日：1989-05-23

    申请号：US113969

    申请日：1987-10-29

    Applicant: Takuo Aoyagi ,  Nobutaka Kobayashi ,  Tadashi Sasaki

    Inventor： Takuo Aoyagi ,  Nobutaka Kobayashi ,  Tadashi Sasaki

    IPC: A61B5/145 ,  A61B5/00 ,  A61B5/1455 ,  A61B5/1495 ,  G01J1/44 ,  G01N21/31

    CPC classification number: A61B5/14551 ,  G01N21/314 ,  G01J2001/4433 ,  G01N2021/3144

    Abstract: An apparatus for determining the concentration of a light-absorbing material contained in blood flowing through a tissue which minimizes the amount of error caused by noise and which ensures highly precise results at all times. The apparatus operates according the principle that light beams of different wavelengths are absorbed by different amounts when passing through the tissue at different portions of the blood pulsation cycle. A plurality of points are detected that fall in the vicinity of the peak and trough of a cycle of a light detection signal. For each wavelength of light, the values of the detection signals produced at each of these points in time is stored. The concentration of the light-absorbing material is computed in response to the stored detection signals.

    Abstract translation: 一种用于确定流过组织的血液中所含的吸光材料的浓度的装置，其使由噪声引起的误差量最小化并且始终确保高度精确的结果。 该装置根据以下原理工作：当在血液脉动周期的不同部分通过组织时，不同波长的光束被不同的量吸收。 检测到落在光检测信号的周期的峰值和谷值附近的多个点。 对于每个波长的光，存储在这些时间点中的每一个处产生的检测信号的值。 响应于所存储的检测信号计算光吸收材料的浓度。

    Process and apparatus for measurement of light-absorbable components dissolved in liquids
    14.
    发明授权
    Process and apparatus for measurement of light-absorbable components dissolved in liquids 失效
    用于测量溶解在液体中的吸光组分的方法和设备

    公开(公告)号：US4775794A

    公开(公告)日：1988-10-04

    申请号：US115314

    申请日：1987-11-02

    Applicant: Henry Behmann

    Inventor： Henry Behmann

    IPC: G01J1/16 ,  G01J1/44 ,  G01N21/31 ,  G01N21/33 ,  G01N33/18 ,  G01J1/42

    CPC classification number: G01N33/1826 ,  G01N21/33 ,  G01J2001/1636 ,  G01J2001/4433 ,  G01N2021/3155 ,  G01N2021/3166 ,  G01N2201/0696 ,  G01N2201/0806

    Abstract: The invention provides a new method and apparatus for measuring the concentration of ultra-violet light absorbing organic materials liquids, particularly in pure or ultra-pure water, the speed and convenience being such that it is possible to take successive readings with periods as short as ten seconds. The apparatus can be mounted directly in or as a by-pass to a process stream, giving the capability of constant monitoring with virtually instant microprocessor-controlled response to measurements outside a pre-set range. The water to be measured passes upwards in a cylindrical opaque-walled sample cell at the upper end of which is mounted an intense light source, preferably a Xenon flash tube, and at the lower end of which is mounted two transmission photodetectors, which have in front of them respective narrow-band optical transmission filters in the ultra-violet and visible regions. The light source sits on the upper end of a quartz rod which extends into the cell at or below the water inlet and is coaxial with the cell longitudinal axis, the rod serving to direct the light toward the transmission photodetectors. The output from the "visible" photodetector is used to correct the output from the "ultraviolet" photodetector for transmission losses caused by particulates, element fouling and bubbles in the stream. Two reference photodetectors employing two similar transmission filters are disposed close to the flash tube outlet window and their signals are used to correct for variation in the flash tube output.

    Abstract translation: 本发明提供了一种用于测量紫外光吸收有机材料液体的浓度的新方法和装置，特别是在纯净或超纯水中，其速度和方便性使得可以连续读数， 十秒钟。 该设备可以直接安装在旁路旁边或作为旁路安装到过程流中，从而能够以预定范围外的测量实际上对微处理器控制的响应进行持续监控。 要测量的水在圆柱形不透明壁样品池中向上通过，其上端安装有强光源，优选氙闪光管，并且其下端安装有两个透射光电检测器，其具有 在它们的前面分别在紫外和可见区域的窄带光传输滤波器。 光源位于石英棒的上端，该石英棒在水入口处或其下方延伸到电池中，并且与电池纵向轴线同轴，该杆用于将光引向透射光电检测器。 来自“可见”光电探测器的输出用于校正“紫外”光电检测器的输出，用于由流中的微粒，元素结垢和气泡引起的传输损失。 使用两个类似的透射滤光器的两个参考光电检测器设置在闪光管出口窗口附近，并且它们的信号用于校正闪光管输出的变化。

    LIGHT DETECTION METHOD
    15.
    发明公开
    LIGHT DETECTION METHOD 审中-公开

    公开(公告)号：US20240192050A1

    公开(公告)日：2024-06-13

    申请号：US18502096

    申请日：2023-11-06

    Applicant: InnoCare Optoelectronics Corporation

    Inventor： Yi-Hung Chiang

    IPC: G01J1/02 ,  G01J1/04 ,  G01J1/44

    CPC classification number: G01J1/0238 ,  G01J1/0403 ,  G01J1/44 ,  G01J2001/4433

    Abstract: A light detection method for a light detection device is provided. The light detection device includes multiple scan lines and multiple light sensing elements. Each of the light sensing elements is coupled to a corresponding one of the scan lines. The light detection method includes: in a detection mode, sequentially scanning a first scan line to a (N+1)th scan line among the scan lines, wherein a Nth scan line is not adjacent to at least one of a (N−1)th scan line and the (N+1)th scan line; reading signals of the light sensing elements coupled to the first scan line to the (N+1)th scan line; determining whether the signals meet an exposure standard; and controlling the light detection device to enter a value reading mode when the signals meet the exposure standard.

    INFRARED DETECTION DEVICE AND INFRARED DETECTION METHOD
    19.
    发明申请
    INFRARED DETECTION DEVICE AND INFRARED DETECTION METHOD 审中-公开
    红外检测装置和红外检测方法

    公开(公告)号：US20150204726A1

    公开(公告)日：2015-07-23

    申请号：US14416686

    申请日：2013-03-04

    Applicant: NEC Corporation

    Inventor： Junichiro Mataga ,  Yasuhiro Sasaki ,  Masatake Takahashi

    IPC: G01J5/00 ,  G01J5/10

    CPC classification number: G01J5/0025 ,  G01J5/026 ,  G01J5/0806 ,  G01J5/0862 ,  G01J5/10 ,  G01J5/34 ,  G01J2001/4433 ,  G01J2005/106 ,  G01V8/00

    Abstract: An infrared detection device that can detect movement, a temperature, and a stationary state of a detection object with a simple configuration is provided.The infrared detection device includes a pyroelectric infrared sensor (11), peak detecting means (12) for an electric signal waveform, peak inclination amount detecting means (13) for an electric signal waveform, peak value holding means (14) for an electrical signal waveform, and determining means (15), the sensor (11) outputs an electric signal depending on change in an infrared ray resulting from a detection object, the peak detecting means (12) detects a peak of a temporal waveform of an electric signal output by the sensor (11), the peak inclination amount detecting means (13) detects an inclination amount of a peak detected by the peak detecting means (12), the peak value holding means (14) holds an initial peak value when the detection object enters a detection region of the sensor (11), for a peak detected by the peak detecting means (12), and the determining means (15) determines entry of the detection object to and exit of the detection object from the detection region, a movement speed and a temperature of the detection object, and movement and motionlessness of the detection object in the detection region.

    Abstract translation: 提供了能够以简单的结构检测检测对象的移动，温度和静止状态的红外线检测装置。 红外线检测装置包括热电式红外线传感器（11），用于电信号波形的峰值检测装置（12），用于电信号波形的峰值倾斜量检测装置（13），用于电信号的峰值保持装置 波形和确定装置（15），传感器（11）根据检测对象产生的红外线的变化输出电信号，峰值检测装置（12）检测电信号输出的时间波形的峰值 通过传感器（11），峰值倾斜量检测装置（13）检测由峰值检测装置（12）检测的峰值的倾斜量，峰值保持装置（14）保持检测对象 进入传感器（11）的检测区域，以检测由峰值检测装置（12）检测到的峰值，并且确定装置（15）确定检测对象从检测区域进入和退出检测对象， mov 检测对象的检测对象的速度和温度，检测对象的移动和静止。

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