公开(公告)号：US4942303A

公开(公告)日：1990-07-17

申请号：US304273

申请日：1989-01-31

Applicant: Zbigniew Kolber ,  Paul Falkowski

Inventor： Zbigniew Kolber ,  Paul Falkowski

IPC: G01N21/63 ,  G01N21/64

CPC classification number: G01N21/645 ,  G01N21/6486 ,  G01N2021/635 ,  G01N2021/6415 ,  G01N2201/0218 ,  G01N2201/0696

Abstract: A computer controlled fluorometer device and method of operating same, said device being made to include a pump flash source and a probe flash source and one or more sample chambers in combination with a light condenser lens system and associated filters and reflectors and collimators, as well as signal conditioning and monitoring means and a programmable computer means and a software programmable source of background irradiance that is operable according to the method of the invention to rapidly, efficiently and accurately measure photosynthetic activity by precisely monitoring and recording changes in fluorescence yield produced by a controlled series of predetermined cycles of probe and pump flashes from the respective probe and pump sources that are controlled by the computer means.

Abstract translation: 计算机控制的荧光计装置及其操作方法，所述装置被制成包括泵闪光源和探针闪光源以及与光聚光透镜系统以及相关联的滤光器和反射器和准直器组合的一个或多个样本室 作为信号调节和监测装置以及根据本发明的方法可操作的可编程计算机装置和软件可编程的背景辐照源，通过精确地监测和记录由a产生的荧光产率的变化来快速，有效和准确地测量光合作用活性 探针和泵的预定循环的受控系列从由计算机装置控制的相应探针和泵浦源闪烁。

公开(公告)号：US4839529A

公开(公告)日：1989-06-13

申请号：US86688

申请日：1987-08-18

Applicant: Frank Fruengel

Inventor： Frank Fruengel

IPC: G01N1/22 ,  G01N15/06 ,  G01N21/15 ,  G01N21/51 ,  G01N21/53

CPC classification number: G01N21/53 ,  G01N15/06 ,  G01N2001/225 ,  G01N2015/0693 ,  G01N2021/151 ,  G01N2021/516 ,  G01N2201/0696

Abstract: An arrangement for in situ determination of the quantity of turbid matter, aerosol and/or dust in flue gas which flows through a flue by measurement of intensity of light irradiated by means of an optical transmitter in the flue, and dispersed on solid or fluid dispersion particles. The dispersion light is detected by a detector which is arranged outside of the bundle of rays of the transmitter and provided with a wide angle focusing optic. A woodsche horn absorbs the not dispersed part of the bundle of rays of the transmitter. The light source of the transmitter is formed as a xenon spark discharger with intensity maximum in the region of 350-600 nm, the detector signal is evaluated by an evaluating electronic circuit. The arrangement determines extremely low quantities of harmful matter.

Abstract translation: 用于通过测量通过烟道中的光学发射器照射的光的强度并且分散在固体或流体分散体上来原位测定流过烟道的烟道气中的混浊物质，气溶胶和/或灰尘的量的装置 粒子。 分散光由布置在发射器的光束外侧并具有广角聚焦光学器件的检测器检测。 一个木工角吸收发射器束的不分散部分。 发射器的光源形成为具有350-600nm范围内的最大强度的氙气火花放电器，检测器信号由评估电子电路评估。 这种安排确定极少量的有害物质。

公开(公告)号：US4838698A

公开(公告)日：1989-06-13

申请号：US33065

申请日：1987-03-31

Applicant: Hiromitsu Ishii ,  Takashi Ono

Inventor： Hiromitsu Ishii ,  Takashi Ono

IPC: G01N21/59 ,  G01J1/16 ,  G01J1/46 ,  G01N21/53 ,  G01R19/10 ,  G08B17/10 ,  G08B17/103

CPC classification number: G01N21/534 ,  G08B17/103 ,  G01J1/46 ,  G01J2001/1636 ,  G01N2021/1751 ,  G01N2201/0621 ,  G01N2201/0696 ,  G08B17/113

Abstract: An extinct type detector which detects and determines a concentration or density of a gas or vapor in a space on the basis of an attenuation of light due to the gas or vapor present within the space.The detector of this feature of the invention operates in such a way that the light emitting device is periodically driven to effect light emission, the first and the second photodetector devices receive the light from said light emitting device, the first and second storage means corresponding to the first and the second photodetector devices, respectively, cumulatively store the outputs from the respective photodetector devices, a difference in cumulative storage values between the first and the second storage means is detected to determine a concentration and density of the gas or vapor within the detecting space based on the detected difference.

Abstract translation: 一种灭绝型检测器，其基于由空气中存在的气体或蒸气引起的光的衰减来检测并确定空间中的气体或蒸汽的浓度或密度。 本发明的这个特征的检测器以这样的方式工作，使得发光器件被周期性地驱动以实现光发射，第一和第二光电检测器件接收来自所述发光器件的光，第一和第二存储装置对应于 第一和第二光电检测器装置分别累积地存储来自各个光检测器件的输出，检测第一和第二存储装置之间的累积存储值的差异，以确定检测中的气体或蒸气的浓度和密度 基于检测到的差异空间。

公开(公告)号：US4770530A

公开(公告)日：1988-09-13

申请号：US855168

申请日：1986-04-23

Applicant: Harold Van Aken ,  William L. Weber

Inventor： Harold Van Aken ,  William L. Weber

IPC: G01J3/28 ,  G01J3/36 ,  G01J3/42 ,  G01N21/47

CPC classification number: G01N21/474 ,  G01J3/0254 ,  G01J2003/2866 ,  G01J2003/425 ,  G01J3/28 ,  G01J3/36 ,  G01N2021/1793 ,  G01N2201/065 ,  G01N2201/0696 ,  G01N2201/0806 ,  G01N2201/126

Abstract: A spectrophotometer (10) is provided having the capability to accurately measure spectral reflectance at relatively long sample distances. A first illumination optics arrangement (14) assures uniform illumination to a portion of the sample and a second optical arrangement (20) focuses the reflected image of part of the illuminated sample onto a polychromator (22). Reference beam means are provided so that the polychromator sequentially measures the spectral characteristics of the reference beam and the sample. Continuous monitoring of the illumination at select wavelengths provides illumination normalization data so that a microprocessor (40) can normalize the illumination and compare the reference beam and sample measurements to accurately determine the spectral reflectance characteristics of the sample. Angular and raster scanning capability is also provided.

Abstract translation: 提供分光光度计（10），其具有在相对长的取样距离下精确地测量光谱反射率的能力。 第一照明光学装置（14）确保对样品的一部分的均匀照明，并且第二光学装置（20）将被照射样品的一部分的反射图像聚焦到多色淀粉（22）上。 提供参考光束装置，使得多色板顺序测量参考光束和样品的光谱特性。 对选择波长的照明的连续监测提供照明归一化数据，使得微处理器（40）可以对照明进行标准化，并比较参考光束和样品测量值，以准确地确定样品的光谱反射特性。 还提供角度和光栅扫描功能。

公开(公告)号：US4726684A

公开(公告)日：1988-02-23

申请号：US946520

申请日：1986-12-24

Applicant: Syokichi Tokumaru

Inventor： Syokichi Tokumaru

IPC: G01J1/16 ,  G01N21/21 ,  G01N21/53 ,  G01N21/59 ,  G02B27/10

CPC classification number: G01N21/534 ,  G01J1/1626 ,  G01J2001/1668 ,  G01N21/21 ,  G01N21/59 ,  G01N2201/066 ,  G01N2201/0696

Abstract: An optical transmission factor is measured by using mutual measuring technology having a pair of identical units (44, 50) located on opposite sides of an object (A). Each of said units (44, 50) comprises a pair of beam splitters (47, 48), a light source means (45, 46) for illuminating an object (A) through a first beam splitter (47) and providing offset beam (56) from said first beam splitter (47), a photo-detector (49) for converting optical power from the other unit (50) and said offset beam (56), wherein each of said beam splitters (47, 48) is substantially in parallelogram shape with two pairs of confronting planes (24, 25; and 22, 23), first pairs of planes (24, 25) are not perpendicular to the second pair of planes (22, 23), one of first pair of planes (24) is mirror coated for reflecting the inside beam, so that split beams (29, 31) from single beam (27) share a common point (200) on the plane ( 23). Thus, a dust/soil free measurement with no mechanically moving means is accomplished.

Abstract translation: 通过使用具有位于物体（A）的相对侧上的一对相同单元（44,50））的相互测量技术来测量光学透射率。 每个所述单元（44,450）包括一对分束器（47,48），用于通过第一分束器（47）照射物体（A）的光源装置（45,46）并且提供偏移波束 56），用于转换来自另一单元（50）和所述偏移光束（56）的光功率的光检测器（49），其中每个所述分束器（47,48）基本上 在具有两对面对面（24,25;和22,23）的平行四边形中，第一对平面（24,25）不垂直于第二对平面（22,23），第一对平面 （24）被镜面涂覆以反射内侧光束，使得来自单个光束（27）的分束（29,31）在平面（23）上共享公共点（200）。 因此，实现了无机械移动装置的无灰尘/无土壤测量。

公开(公告)号：US4695734A

公开(公告)日：1987-09-22

申请号：US703385

申请日：1985-02-20

Applicant: Hiroshi Honma ,  Junichi Narumiya

Inventor： Hiroshi Honma ,  Junichi Narumiya

IPC: H02H1/06 ,  A62C37/36 ,  A62C37/50 ,  G01N21/27 ,  G01N21/53 ,  G08B17/10 ,  G08B17/103 ,  G08B29/24 ,  G01N15/06

CPC classification number: G08B17/103 ,  G01N21/274 ,  G08B29/24 ,  G01N21/534 ,  G01N2201/0696

Abstract: A light emitting unit and a photo sensing unit are separately arranged to face with each other, and a pulse light is emitted from the light emitting unit at every constant period, and the photo sensing unit receives the pulse light attenuated by a smoke, thereby detecting a fire. When a power source is turned on, a microcomputer in the photo sensing unit stores the first photo sensing data as an initial photo sensing data in a memory. The initial photo sensing data is fixedly stored and held and is not erased due to a temporary cut off of the power source. The photo sensing data is converted to correction photo sensing data using a correction ratio to perform the fouling correction and the fire is discriminated on the basis of the correction photo sensing data. The correction ratio is corrected when the correction period reaches 50 minutes. A correction amount of a single correction ratio is suppressed to a microvalue. In correction of the correction ratio, it is increased or decreased by only a microvalue at every correction period until the photo sensing data coincides with the initial photo sensing data.

Abstract translation: 发光单元和感光单元分别布置成彼此面对，并且每个恒定周期从发光单元发射脉冲光，并且光感测单元接收被烟雾衰减的脉冲光，从而检测 一阵火 当电源接通时，感光单元中的微计算机将第一感光数据作为初始感光数据存储在存储器中。 初始的感光数据被固定地存储和保持，并且由于暂时切断电源而不被擦除。 使用校正比率将感光数据转换为校正光感测数据，以执行结垢校正，并且基于校正光感测数据来识别火焰。 当校正周期达到50分钟时校正比率被校正。 单个校正比率的校正量被抑制到微小值。 在校正比率的校正中，在每个校正周期仅增加或减小微值，直到感光数据与初始感光数据一致。

公开(公告)号：US4643571A

公开(公告)日：1987-02-17

申请号：US651191

申请日：1984-09-14

Applicant: Alan C. Ferber ,  Morteza M. Chamran, deceased

Inventor： Alan C. Ferber ,  Morteza M. Chamran, deceased

IPC: G01J3/10 ,  H05B41/18 ,  H05B41/34

CPC classification number: H05B41/34 ,  G01J3/10 ,  H05B41/18 ,  G01N21/6408 ,  G01N2201/0696

Abstract: It has been shown that the use of a shutter to cut off the light beam entering the optical system of a fluoresence spectrophotometer will reduce UV deterioration of the components in the optical system. This invention discloses how control of the output of the light source by lowering its arc current when the shutter is closed can add significant improvement to the functioning of such a shutter system.

Abstract translation: 已经表明，使用快门来切断进入荧光分光光度计的光学系统的光束将减少光学系统中部件的紫外线劣化。 本发明公开了如何通过在快门关闭时降低其电弧电流来控制光源的输出，这可以显着改善这种快门系统的功能。

公开(公告)号：US4336459A

公开(公告)日：1982-06-22

申请号：US158642

申请日：1980-06-11

Applicant: Homer Fay

Inventor： Homer Fay

IPC: G02C1/00 ,  F21V9/16 ,  G01J1/42 ,  G01J3/02 ,  G01J3/10 ,  G01J3/44 ,  G01N21/64

CPC classification number: G01J3/10 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/4406 ,  G01N21/6447 ,  G01J2001/4242 ,  G01N2021/1793 ,  G01N2201/0221 ,  G01N2201/0696

Abstract: Fluorescent materials such as certain metal ores are detected under ambient light conditions by observing the material through a gated aperture which is opened at predetermined intervals for periods of predetermined duration while simultaneously exposing the material to periodic pulses of fluorescent stimulating light. The frequency of the light pulse is synchronized with the frequency of the opening of the gated aperture so that the aperture is open for at least a portion of the period during which fluorescence is produced by the stimulating light pulse. Electro-optic goggles are a preferred type of gated aperture.

Abstract translation: 在环境光条件下通过观察材料通过门控孔径来检测诸如某些金属矿石的荧光材料，所述门控孔在预定时间段内以预定间隔打开，同时将材料暴露于荧光刺激光的周期性脉冲。 光脉冲的频率与门控孔的开度的频率同步，使得孔径在通过刺激光脉冲产生荧光的期间的至少一部分是开放的。 电光镜是门控孔的优选类型。

公开(公告)号：US4055768A

公开(公告)日：1977-10-25

申请号：US721065

申请日：1976-09-07

Applicant: Nathan S. Bromberg

Inventor： Nathan S. Bromberg

IPC: G01N21/64 ,  G01N21/38

CPC classification number: G01N21/6486 ,  G01N21/645 ,  G01N2021/1738 ,  G01N2201/0696

Abstract: Apparatus usable as a fluorometer for measuring the concentration of fluorescent material in a specimen employs a flashing lamp to illuminate the specimen with excitation radiation. The intensity of the fluorescence emitted by the specimen is therefore modulated at the flash rate. That modulated fluorescence is converted by a photodetector to an electrical signal. The electrical signal is amplified and is passed through a phase sensitive detector to an integrator. The phase sensitive detector is regulated to operate at a rate related to the flash rate whereby an appropriately rectified signal is fed to the integrator. When the specimen has been subjected to a selected amount of excitation radiation, a signal is generated which marks the end of the integration interval. The accumulated signal in the integrator is then measured to obtain a measurement of the quantity of fluorescent material in the specimen. The apparatus is also usable as a nephelometer to measure the light scattering properties of a specimen illuminated by the flashing lamp.

Abstract translation: 可用作测量样品中荧光材料浓度的荧光计的装置使用闪光灯以激发辐射照射样品。 因此，样品发射的荧光的强度以闪光速率调制。 该调制荧光由光电检测器转换为电信号。 电信号被放大并通过相位敏感检测器到达积分器。 相敏检测器被调节以与闪速率相关的速率操作，由此将适当整流的信号馈送到积分器。 当样本已经受到选定量的激发辐射时，产生标记积分间隔结束的信号。 然后测量积分器中的累积信号，以获得样品中荧光材料的量的测量。 该装置还可用作浊度计来测量由闪光灯照射的样品的光散射性质。

公开(公告)号：US20240280479A1

公开(公告)日：2024-08-22

申请号：US18441815

申请日：2024-02-14

Applicant: Lightsense Technology, Inc.

Inventor： John Coates ,  Wade Poteet ,  Terje Skotheim

IPC: G01N21/3504 ,  G01N21/01 ,  G01N21/35

CPC classification number: G01N21/3504 ,  G01N2021/0106 ,  G01N2021/3595 ,  G01N2201/0696 ,  G01N2201/1056

Abstract: An optical spectral sensing system that provides a full-range mid-IR FTIR based measurement for gases and vapors. The system features a small interferometer module which is integrated with a sample cell and solid-state source, that has an optimized optical path matched to the intended concentration ranges for the gas/vapor measurements. The concentration ranges targeted are from % level for high targeted gas concentrations, as provided by short-pathlength gas cells, to parts-per-million (ppm) and for certain gases high parts-per-billion (ppb) for low trace targeted gas concentrations, provided by long-pathlength gas cells. The optics and opto-mechanical components selected are able to provide a spectral range of 400 cm−1 to 5000 cm−1, with nominal spectral resolutions of 4 cm−1 to 16 cm−1, with the potential to extend the resolution from 2 cm−1 out to 32 cm−1. The electronics are optimized to support both the range and spectral resolution based the use of a “universal” mid-IR detector.