公开(公告)号：US4912319A

公开(公告)日：1990-03-27

申请号：US160632

申请日：1988-02-26

Applicant: Shigeru Miyata ,  Yoshihiro Matsubara ,  Kiyotaka Ohno

Inventor： Shigeru Miyata ,  Yoshihiro Matsubara ,  Kiyotaka Ohno

IPC: G01N21/41 ,  G01J1/16 ,  G01J1/44 ,  G01N21/43 ,  G01N21/85

CPC classification number: G01N21/43 ,  G01J2001/1636 ,  G01J2001/444 ,  G01N21/85 ,  G01N2201/0621 ,  Y10S250/903

Abstract: A detector device for mixing ratio for gasoline and alcohol include an optically permeable column, one end of which is coated with a light-reflective layer. The circumferential surface of the column is at least partly immersed in mixing liquid of gasoline and alcohol.The light beams enter the column to be incident on said circumferential surface of the column and reflect from the circumferential surface to be incident on said light reflective-layer to reflect therefrom. The reflected light beams impinge on a photo diode which outputs in accordance with the intensity of the light beams impinged.The diametrical and lengthwise dimension of the column being determined such as to provide incidence angles of the reflected light beams changing from a minimum angle corresponding to the critical angle when the mixing liquid ratio is at the lower limit of the predetermined range to a maximum angle corresponding to the critical angle when the mixing liquid ratio is at the upper limit of the predetermined range.

Abstract translation: 用于汽油和醇的混合比的检测器装置包括光学透析柱，其一端涂覆有光反射层。 柱的圆周表面至少部分浸没在汽油和酒精的混合液体中。 光束进入柱入射到柱的所述圆周表面上并从圆周表面反射入射到所述光反射层上以从其反射。 反射光束照射到根据照射的光束的强度输出的光电二极管。 确定柱的直径和纵向尺寸，以便当混合液比在预定范围的下限至对应的最大角度时，提供从与临界角对应的最小角度改变的反射光束的入射角 当混合液体比例在预定范围的上限时达到临界角。

公开(公告)号：US4832491A

公开(公告)日：1989-05-23

申请号：US61239

申请日：1987-06-10

Applicant: Michael R. Sharpe ,  Stephen J. Cooke

Inventor： Michael R. Sharpe ,  Stephen J. Cooke

IPC: G01J1/44 ,  G01J3/28 ,  G01J3/42 ,  G01N21/27 ,  G01N21/59

CPC classification number: G01N21/274 ,  G01J2001/444 ,  G01J2003/2873 ,  G01J2003/421 ,  G01N21/59 ,  G01N2201/12753

Abstract: A single beam wavelength scanning spectrophotometer comprises means for passing radiation from a radiation source (1) to a radiation detector (4) over a defined path which includes a monochromator (2) capable of being scanned across a selected wavelength range, means (7) for storing a first set of signals representative of the radiation falling on the radiation detector, the first set of signals being spread across the selected wavelength range to form a first spectral response, means for inserting a sample (3) in the defined path, means for producing a second set of signals representative of the radiation falling on the radiation detector when the sample (3) is inserted in the defined path, the second set of signals being spread across a selected wavelength range to form a second spectral response, and means (7) for calculating the transmittance or absorbance of the sample at desired wavelengths from the first and second spectral responses. The ambient temperature in the region of the radiation detector (5) is monitored (6) and the first and/or second sets of signals are modified in dependence on the ambient temperature when the first and second set of signals are produced.

Abstract translation: 单波长波长扫描分光光度计包括用于将辐射从辐射源（1）传递到辐射探测器（4）的装置，该装置包括能够在选定波长范围内扫描的单色仪（2）的限定路径，装置（7） 用于存储表示落在辐射检测器上的辐射的第一组信号，所述第一组信号在所选择的波长范围内扩展以形成第一光谱响应，用于将样品（3）插入所述限定的路径中的装置 用于当样本（3）插入所述确定的路径中时产生表示落在所述辐射检测器上的辐射的第二组信号，所述第二组信号在所选择的波长范围内扩展以形成第二光谱响应， （7），用于从第一和第二光谱响应计算所需波长处的样品的透射率或吸光度。 监测辐射检测器（5）区域中的环境温度（6），并且当产生第一和第二组信号时，第一组信号和/或第二组信号根据环境温度进行修改。

公开(公告)号：US4804266A

公开(公告)日：1989-02-14

申请号：US8544

申请日：1987-01-29

Applicant: Yoav Barshad

Inventor： Yoav Barshad

IPC: G01J3/02 ,  G01J1/44 ,  G01J3/04 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28 ,  G01J3/42

CPC classification number: G01J3/06 ,  G01J3/2889 ,  G01J2001/444 ,  G01J2003/062 ,  G01J2003/066 ,  G01J2003/2866 ,  G01J3/1838

Abstract: A system for rapid-scan spectral analysis comprising a concave holographic diffraction grating continuously rotated at a substantially constant angular velocity to provide a rapid scanning monochromator (a monochromator is used to transfer nominal regions of wavelengths out of the continuous light source). The unique sampling circuitry uses an optical shaft encoder. The angular velocity and angular acceleration of the grating are calculated from time measurements, just before the first wavelength of interest falls on the detector. This information is used to control the Analog to Digital converter sampling rate across the region of interest. The samples as a function of time are stored in a memory buffer so that each data point corresponds to a wavelength.

Abstract translation: 一种用于快速扫描光谱分析的系统，包括以基本上恒定的角速度连续旋转的凹面全息衍射光栅，以提供快速扫描单色仪（使用单色仪将标称的波长区域转移出连续光源）。 独特的采样电路采用光轴编码器。 光栅的角速度和角加速度由时间测量计算，就在感兴趣的第一波长落在检测器之前。 该信息用于控制整个感兴趣区域的模数转换器采样率。 作为时间的函数的样本被存储在存储器缓冲器中，使得每个数据点对应于波长。

公开(公告)号：US4770129A

公开(公告)日：1988-09-13

申请号：US45072

申请日：1987-05-01

Applicant: Shigeru Miyata ,  Yoshihiro Matsubara

Inventor： Shigeru Miyata ,  Yoshihiro Matsubara

IPC: G01N21/43 ,  F02B1/02 ,  F02B77/08 ,  F02D41/14 ,  G01J1/16 ,  G01J1/44 ,  G01N21/85 ,  G01N33/28 ,  F02B75/00

CPC classification number: F02B1/02 ,  F02B77/08 ,  F02D41/1451 ,  G01N21/85 ,  G01N33/2852 ,  F02F2007/0092 ,  G01J2001/1647 ,  G01J2001/444 ,  G01N2201/0621

Abstract: A sensor for mixing ratio of gasoline and alcohol comprising: a transparent column, both ends of which are supported by grips; the surface of the column is positioned in direct contact with a mixing liquid of gasoline and alcohol; a light emitting diode disposed so that light beams therefrom are incident on one end of said transparent column and the mixing liquid, said beams incident on said boundary at less than a critical angle being totally refracted, while said beams incident on said boundary at more than the critical angle being totally reflected to pass within said column so as to go out from the other end thereof, said critical angle depending upon a mixing degree of said liquid; a photo diode placed to receive the light beams reflected from the boundary so as to generate an output in accordance with the quantity of the light beams received; and the column being substantially determined its lengthwise and diametrical dimension such that the light beams incident upon the boundary at a critical angle, are allowed to totally reflect only once to enter the photo diode with the mixing ratio of alcohol and gasoline ranging from 100:0 to 0:100.

Abstract translation: 一种用于汽油和醇的混合比的传感器，包括：透明柱，其两端由夹具支撑; 柱的表面与汽油和酒精的混合液体直接接触; 发光二极管被设置成使得其光束入射在所述透明柱的一端和混合液体上，所述入射在所述边界上的所述光束以小于临界角度被全部折射，同时所述光束在所述边界上入射超过 所述临界角被全反射以在所述柱内通过以从其另一端出去，所述临界角取决于所述液体的混合程度; 放置以接收从边界反射的光束的光电二极管，以便根据所接收的光束的量产生输出; 并且柱基本上确定其长度和直径尺寸，使得以临界角入射到边界的光束仅允许完全反射一次以使酒精和汽油的混合比为100：0 至0：100。

公开(公告)号：US3963351A

公开(公告)日：1976-06-15

申请号：US567946

申请日：1975-04-14

Applicant: Britton Chance ,  Victor Legallais ,  John R. Sorge ,  Norman C. Graham, Jr.

Inventor： Britton Chance ,  Victor Legallais ,  John R. Sorge ,  Norman C. Graham, Jr.

IPC: G01J1/44 ,  G01J3/12 ,  G01N21/31 ,  G01J3/30 ,  G01J3/48

CPC classification number: G01N21/314 ,  G01J2001/444 ,  G01J2003/123 ,  G01N2021/3162 ,  G01N2021/3174 ,  G01N2021/4742 ,  G01N2021/6421 ,  G01N21/6408 ,  G01N2201/0621 ,  G01N2201/0806

Abstract: A multi-wavelength time-sharing apparatus usable in various different configurations of optical measuring equipment to provide a plurality of time-shared optical channels and including appropriate circuitry. The apparatus employs a turbine-driven filter wheel having a shaft position-encoding arrangement consisting of a hollow shaft portion which is internally illuminated. The hollow shaft portion has two sets of spaced apertures cyclically communicating with respective angularly spaced pairs of externally fixedly mounted phototransistors which are sequentially illuminated as the shaft portion rotates and which produce timing pulses which drive Schmitt triggers, which, in a typical embodiment, in turn produce pulses compatible with a logic circuit employed to decode the phototransistor signals into triggers for driving a 4-channel switched gain equalizer, a dark current clamp, and detector gates. Appropriate selection of the signals enables the instrument to function as a fluorometer or a spectrophotometer.

Abstract translation: 一种可用于各种不同配置的光学测量设备以提供多个时间共享的光学信道并且包括适当的电路的多波长时间共享装置。 该装置采用具有轴位置编码装置的涡轮驱动滤光轮，该轴位置编码装置由内部照明的中空轴部分组成。 空心轴部分具有两组间隔开的孔，这些孔与相应的有角度地间隔开的外部固定安装的光电晶体管对循环连通，随着轴部分旋转，该光电晶体管依次被照亮，并且产生驱动施密特触发器的定时脉冲，在典型的实施例中， 产生与用于将光电晶体管信号解码为用于驱动4通道开关增益均衡器，暗电流钳和检测器门的触发器的逻辑电路兼容的脉冲。 信号的适当选择使得仪器能够用作荧光计或分光光度计。

公开(公告)号：US20240348768A1

公开(公告)日：2024-10-17

申请号：US18681781

申请日：2021-08-31

Applicant: Siemens Industry Software Inc.

Inventor： Gajinder PANESAR ,  Marcin HLOND

IPC: H04N17/00 ,  G01J1/44

CPC classification number: H04N17/002 ,  G01J1/44 ,  G01J2001/444

Abstract: A method of monitoring messages from a sensor using an integrated circuit is provided, wherein the messages include data measured by that sensor. The method includes reading a first message from interconnect circuitry of the integrated circuit, the interconnect circuitry connecting the sensor to one or more core devices configured to process the message. The method further includes calculating a first hash value for the first message and comparing the first hash value to one or more prior hash values stored in a hash store, wherein each prior hash value corresponds to a message that was read from the interconnect circuitry prior to the first message. The method further includes performing a corrective action when the difference between the first hash value and at least one of the prior hash values stored in the hash store is above a predetermined threshold.

公开(公告)号：US20240337527A1

公开(公告)日：2024-10-10

申请号：US18746643

申请日：2024-06-18

Applicant: Lutron Technology Company LLC

Inventor： Kuo-Lih Chang ,  Mickey Malone ,  Horace C. Ho

IPC: G01J1/02 ,  G01J1/32 ,  G01J1/42 ,  G01J1/44 ,  G01J3/02 ,  G01J3/46 ,  G01J3/50 ,  H05B45/20 ,  H05B45/46 ,  H05B47/19 ,  H05B47/195

CPC classification number: G01J1/0252 ,  G01J1/32 ,  G01J3/0286 ,  G01J3/465 ,  G01J3/502 ,  G01J3/505 ,  H05B45/20 ,  H05B45/46 ,  H05B47/19 ,  G01J2001/4252 ,  G01J2001/444 ,  H05B47/195

Abstract: An illumination device comprises one or more emitter modules having improved thermal and electrical characteristics. According to one embodiment, each emitter module comprises a plurality of light emitting diodes (LEDs) configured for producing illumination for the illumination device, one or more photodetectors configured for detecting the illumination produced by the plurality of LEDs, a substrate upon which the plurality of LEDs and the one or more photodetectors are mounted, wherein the substrate is configured to provide a relatively high thermal impedance in the lateral direction, and a relatively low thermal impedance in the vertical direction, and a primary optics structure coupled to the substrate for encapsulating the plurality of LEDs and the one or more photodetectors within the primary optics structure.

公开(公告)号：US20240328853A1

公开(公告)日：2024-10-03

申请号：US18507115

申请日：2023-11-13

Applicant: ELITE SEMICONDUCTOR MICROELECTRONICS TECHNOLOGY INC.

Inventor： DAR-CHANG JUANG

IPC: G01J1/44 ,  G01J1/02 ,  H03F3/08

CPC classification number: G01J1/44 ,  G01J1/0228 ,  H03F3/087 ,  G01J2001/444 ,  H03G3/3084

Abstract: An active clamp photoelectric sensing device includes an input terminal, a first output terminal, a current-to-voltage conversion circuit, and an active clamp circuit. The input terminal receives an input current. The first output terminal outputs a first output voltage. The current-to-voltage conversion circuit is coupled between the input terminal and the first output terminal, and is used to discharge and lower potentials of the input terminal and the first output terminal to a first set voltage according to the state of a reset signal, or is used to gradually increase the first output voltage to a second set voltage. The active clamping circuit is coupled to the current-to-voltage conversion circuit, and is used to clamp the upper limit of the first output voltage to the second set voltage.

公开(公告)号：US12078531B2

公开(公告)日：2024-09-03

申请号：US17729593

申请日：2022-04-26

Applicant: HI LLC

Inventor： Michael Henninger ,  Isai Olvera ,  Han Yong Ban ,  Ryan Field

IPC: G01J1/04 ,  G01J1/16 ,  G01J1/44

CPC classification number: G01J1/0474 ,  G01J1/0422 ,  G01J2001/1668 ,  G01J2001/444

Abstract: An illustrative calibration member made from a material that scatters light may be used to perform a calibration operation with respect to an optical measurement device having a plurality of light sources and a plurality of detectors distributed among a plurality of modules. The calibration member may form an exterior surface configured to support the optical measurement device and scatter photons of light emitted by the optical measurement device. The calibration operation may be performed based on arrival times of the scattered photons detected by the optical measurement device.

公开(公告)号：US12072239B1

公开(公告)日：2024-08-27

申请号：US18128948

申请日：2023-03-30

Applicant: XILINX, INC.

Inventor： Zhaowen Wang ,  Mayank Raj ,  Chuan Xie ,  Sandeep Kumar ,  Muqseed Mohammad ,  Sukruth Pattanagiri Giriyappa ,  Stanley Y. Chen ,  Parag Upadhyaya ,  Yohan Frans

IPC: G01J1/44 ,  G01J1/02 ,  H03F3/45

CPC classification number: G01J1/44 ,  G01J1/0252 ,  H03F3/45076 ,  G01J2001/444 ,  G01J2001/446

Abstract: An integrated circuit (IC) device includes a controller circuitry having an input coupled to a photodiode of an optoelectronic circuitry and an output coupled to a heater of the optoelectronic circuitry, the controller circuitry configured to determine a center frequency of the optoelectronic circuitry based on a shape of an input signal received from the photodiode, and provide a heater signal to the heater based on the shape of the input signal and the center frequency of the optoelectronic circuitry.