ELECTRIC GATED INTEGRATOR DETECTION METHOD & DEVICE THEREOF
    31.
    发明申请
    ELECTRIC GATED INTEGRATOR DETECTION METHOD & DEVICE THEREOF 有权
    电门式集成电路检测方法及其装置

    公开(公告)号:US20090273785A1

    公开(公告)日:2009-11-05

    申请号:US12434685

    申请日:2009-05-04

    Abstract: A cavity ring down system is optimized to precisely measure trace gases or particles in an air sample by using time sampling detection and multiple-sample averaging resulting in a high signal-to-noise ratio. In one embodiment, a cavity ring down system is programmed to measure the rise time and the fall time of the light level in an optical cavity. The cavity ring down system is programmed to integrate a plurality of sample portions during a rise time and a plurality of sample portions during a fall time (in alternate intervals) to obtain a time constant with no sample present and a time constant with sample present. The measurements are used to calculate trace gases in the air sample.

    Abstract translation: 通过使用时间采样检测和多采样平均得到高的信噪比,空腔回缩系统被优化以精确测量空气样品中的微量气体或颗粒。 在一个实施例中,空腔下降系统被编程为测量光腔中的光级的上升时间和下降时间。 空腔退避系统被编程为在上升时间期间的多个样本部分和多个样本部分在下降时间(以交替的间隔)内积分,以获得不存在样本的时间常数,并且样本存在时间常数。 测量用于计算空气样品中的痕量气体。

    INTEGRATED PULSE OXIMETRY SENSOR
    32.
    发明申请
    INTEGRATED PULSE OXIMETRY SENSOR 有权
    集成脉冲OXIMETRY传感器

    公开(公告)号:US20090240125A1

    公开(公告)日:2009-09-24

    申请号:US11720887

    申请日:2005-12-05

    Abstract: In a medical pulse oximetry sensor (10) at least two light emitting diodes (16, 18) are disposed to emit red light and infrared light through a portion of a subject's anatomy with a typically high oxygenated blood throughput. Typically, this area is also relatively narrow, to allow the light to pass through the area with acceptable attenuation, such as a finger or an earlobe. Light emitted from the LEDs (16, 18) is incumbent upon an integrated circuit (22) printed from a single CMOS substrate (21). The integrated circuit (22) includes all preprocessing and post-processing elements needed to convert the detected light signals into a pulse oximetry measurement. These elements include a photodetector (20), a photo pre-amplifier (40), a sampler/holder (42), an analog to digital converter (44), a microprocessor (46) a rangefinder (48), a timing control circuit (50) and an LED control circuit (52). By integrating all pre and post processing functions into the carriage housing (12), the system becomes more efficient, less expensive to manufacture, and more robust to ambient light and x-ray radiation.

    Abstract translation: 在医疗脉搏血氧饱和度传感器(10)中,设置至少两个发光二极管(16,18)以通过具有典型高氧合血液吞吐量的受试者解剖结构的一部分发射红光和红外光。 通常,该区域也相对较窄,以允许光以可接受的衰减(例如手指或耳垂)穿过该区域。 从LED(16,18)发射的光在由单个CMOS衬底(21)印刷的集成电路(22)上。 集成电路(22)包括将检测到的光信号转换成脉搏血氧测量测量所需的所有预处理和后处理元件。 这些元件包括光电检测器(20),光前置放大器(40),采样器/保持器(42),模数转换器(44),微处理器(46)测距仪(48),定时控制电路 (50)和LED控制电路(52)。 通过将所有前后处理功能集成到滑架壳体(12)中,系统变得更加高效,制造成本更低,并且对环境光和x射线辐射更加坚固。

    Inspection of eggs in the presence of blood
    33.
    发明授权
    Inspection of eggs in the presence of blood 有权
    在有血液的情况下检查鸡蛋

    公开(公告)号:US07545487B2

    公开(公告)日:2009-06-09

    申请号:US11575125

    申请日:2005-09-05

    Abstract: The invention relates to a device for inspecting eggs for the presence of blood. The device comprises a light source in order to pass light at a first wavelength which is not selectively absorbed by blood and light at a second wavelength which is selectively absorbed by blood through an egg to be inspected. Furthermore, the device comprises detection means for converting the light transmission through the egg to be inspected for each of the two wavelengths into corresponding signals, each of the said signals being representative of the light transmission at the relevant wavelength. The device also comprises signal-processing means which are transmission associated with the first wavelength and the light transmission associated with the second wavelength based on the signals emanating from the detection means and to emit a decision signal which is representative of the decision whether or not an egg contains blood on the basis of this ratio. According to the invention, the light source comprises one or more identical LED's (Light Emitting Diode) for generating light which passes through the egg. In use the one or more LED's emit light within a certain narrow spectrum, which spectrum comprises both the first and the second wavelength.

    Abstract translation: 本发明涉及一种用于检查卵存在血液的装置。 该装置包括光源,以便以不被血液选择性地吸收的第一波长的光和通过待检查的卵选择性地被血液吸收的第二波长的光通过。 此外,该装置包括检测装置,用于将通过要检测的两个波长中的每一个的卵的光透射转换成相应的信号,所述信号中的每一个代表在相关波长处的光透射。 该装置还包括基于从检测装置发出的信号而与第一波长相关联的传输和与第二波长相关的光传输的信号处理装置,并且发出代表该决定的决定信号 在这个比例的基础上,鸡蛋含有血液。 根据本发明,光源包括用于产生通过蛋的光的一个或多个相同的LED(发光二极管)。 在使用中,一个或多个LED在特定窄谱内发光,该光谱包括第一和第二波长。

    Particulate detector
    40.
    发明授权
    Particulate detector 有权
    颗粒检测器

    公开(公告)号:US08559006B2

    公开(公告)日:2013-10-15

    申请号:US13121467

    申请日:2009-10-01

    Abstract: A particulate detector (10) comprises a radiation source (12) arranged to emit radiation in at least first and second predetermined wavebands towards a sampling region (18) suspected of containing particulates, and a detection element (14), shielded from the radiation source (12), and arranged to detect radiation from the sampling region (18) at least first and second instances. The radiation source (12) is such that the emissions in the wavebands temporarily overlap. The detector is such that, at the instances at which the radiation is detected, the relative contributions from the emissions in each predetermined waveband are distinguishable, thereby allowing characteristics of the particulates to be determined. The radiation source (12) may comprise a light emitting diode (24).

    Abstract translation: 微粒检测器(10)包括辐射源(12),辐射源(12)被布置成在至少第一和第二预定波段中向被怀疑含有微粒的采样区域(18)发射辐射;以及检测元件(14),其与辐射源 (12),并且被布置成在至少第一和第二实例中检测来自采样区域(18)的辐射。 辐射源(12)使得波段中的发射暂时重叠。 检测器使得在检测到辐射的情况下,来自每个预定波段中的发射的相对贡献是可区分的,从而允许确定微粒的特性。 辐射源(12)可以包括发光二极管(24)。

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