Method of measuring ambient temperature and a temperature measurement arrangement
    31.
    发明申请
    Method of measuring ambient temperature and a temperature measurement arrangement 失效
    测量环境温度和温度测量装置的方法

    公开(公告)号:US20040013159A1

    公开(公告)日:2004-01-22

    申请号:US10369722

    申请日:2003-02-21

    CPC classification number: G01K13/06 G01J5/0022 G01J5/524

    Abstract: The invention relates to a method and an arrangement for measuring the ambient temperature in barely accessible or hazardous locations, in particular in the proximity of textile, paper or similar webs or other work pieces or materials being conveyed, of which at least one property is determined by means of a methodical system, which requires at least the direct ambient temperature as a comparative or reference value. According to the invention, a pyrometric radiation meter known per se is used. A thermal radiator in thermal balance with the environment is positioned directly proximate to the material web. Detection of the heat radiation spectrum and hence an indirect determination of the ambient temperature is carried out by means of the pyrometer via said thermal radiator.

    Abstract translation: 本发明涉及一种用于测量在几乎不可接近或危险的位置,特别是在纺织品,纸张或类似的织物或其它工件或被输送的材料附近的环境温度的方法和装置,其中确定了至少一个性质 通过一种有系统的系统,其至少要求直接环境温度作为比较或参考值。 根据本发明,使用本身已知的高温测量辐射计。 与环境热平衡的散热器直接靠近材料网。 通过所述热辐射器通过高温计进行热辐射谱的检测并因此间接测定环境温度。

    Realtime sensitivity correction method and infrared imaging system
    32.
    发明授权
    Realtime sensitivity correction method and infrared imaging system 失效
    实时灵敏度校正方法和红外成像系统

    公开(公告)号:US06230108B1

    公开(公告)日:2001-05-08

    申请号:US09176824

    申请日:1998-10-22

    Inventor: Yuuichi Matsuda

    CPC classification number: H04N5/3651 G01J5/524 G01K11/30 H04N5/33 H04N5/367

    Abstract: A realtime sensitivity correction method for use in an infrared imaging system, which compensates for possible sensitivity variations among a plurality of sensor elements constituting a infrared sensor device. The infrared imaging system comprises: an infrared sensor which accepts infrared rays emanating from a target object through an appropriate optical system, two reference heat sources, a sensitivity correction circuit composed of digital signal processors, RAM, and other components, a sensitivity correction sequence controller, and a video monitor. The system's scanning cycle consists of an effective scanning period and a non-effective scanning period. During a non-effective scanning period, the infrared sensor scans the high-temperature and normal-temperature reference heat sources. By averaging the detected values, high-temperature reference data and normal-temperature reference data are obtained. Sensitivity correction coefficients are then calculated from the high-temperature and normal-temperature reference data. In the subsequent effective scanning period, the infrared sensor scans the target object, and the resultant image data is corrected according to the sensitivity correction coefficients.

    Abstract translation: 一种用于红外成像系统的实时灵敏度校正方法,其补偿构成红外传感器装置的多个传感器元件之间可能的灵敏度变化。 红外成像系统包括:红外传感器,其接收通过适当的光学系统从目标物体发出的红外线,两个参考热源,由数字信号处理器,RAM和其它部件组成的灵敏度校正电路,灵敏度校正序列控制器 和视频监视器。 系统的扫描周期由有效的扫描周期和非有效的扫描周期组成。 在非有效扫描期间,红外传感器扫描高温和常温参考热源。 通过平均检测值,获得高温参考数据和常温参考数据。 然后从高温和常温参考数据计算灵敏度校正系数。 在随后的有效扫描周期中,红外线传感器扫描目标物体,并根据灵敏度校正系数校正所得到的图像数据。

    Method and apparatus for emissivity independent self-calibrating of a
multiwavelength pyrometer
    33.
    发明授权
    Method and apparatus for emissivity independent self-calibrating of a multiwavelength pyrometer 失效
    用于多波长高温计的发射率独立自校准的方法和装置

    公开(公告)号:US5690429A

    公开(公告)日:1997-11-25

    申请号:US783640

    申请日:1997-01-14

    Applicant: Daniel Ng

    Inventor: Daniel Ng

    CPC classification number: G01J5/60 G01J5/522 G01J5/524 G01J2005/0048

    Abstract: Self calibrating a pyrometer includes taking two different temperatures thereby generating two voltage spectra, calculating the spectra ratio R of the two voltage spectra, determining the slope of the plot of the logarithm of the spectrum ratio versus c.sub.2 /.lambda. to arrive at a relationship between T.sub.1 and T.sub.2, solving for T.sub.1 within the spectra ratio, and arriving at a value for T.sub.2 by substituting experimentally measured values for R into the spectra ratio equation. This method is then repeated for the determination of T.sub.2. The pyrometer calibration constant h.sub..lambda. can then be determined by dividing the measured voltage spectra by the planck function at the known temperature (i.e., T.sub.1 or T.sub.2). Measurement of subsequent temperatures can now be determined by measuring the voltage spectra and dividing by the calibration constant h.sub..lambda. which will result in a planck function L.sub..lambda. (T) which can be solved to yield the surface temperature.

    Abstract translation: 自校准高温计包括采取两个不同的温度,从而产生两个电压谱,计算两个电压光谱的光谱比R,确定光谱比对数相对于c2 /λ的对数曲线的斜率,得到T1 和T2,在光谱比内求解T1,并将R的实验测量值代入光谱比方程,达到T2值。 然后重复该方法以确定T2。 然后可以通过将测量的电压谱除以在已知温度(即T1或T2)下的平板功能来确定高温计校准常数hλ。 随后的温度的测量现在可以通过测量电压谱和除以校准常数hλ来确定,这将导致可以解决以产生表面温度的平面函数L lambda(T)。

    Self-calibrating radiometer
    34.
    发明授权
    Self-calibrating radiometer 失效
    自校准辐射计

    公开(公告)号:US4030362A

    公开(公告)日:1977-06-21

    申请号:US643042

    申请日:1975-12-22

    Applicant: John Dimeff

    Inventor: John Dimeff

    CPC classification number: G01J5/524

    Abstract: A self-calibrating radiometer comprising a block having a front surface for receiving incident radiation flux, an identically configured rear surface for receiving internally applied heat and a midportion for thermally insulating the rear surface from the front surface, the front surface being capable of absorbing as heat substantially all radiation flux incident thereupon and capable of reradiating substantially all of the absorbed heat, and the rear surface being capable of radiating substantially all heat applied thereto, a thermocouple configuration for sensing the heat radiated by each of the front and rear surfaces, an indicator for indicating any difference in the sensed heat, a heating element for applying enough heat to the rear surface so that no difference in heat radiated by the front and rear surfaces is indicated by the indicator, and a measuring circuit for measuring the heat applied to the rear surface, such measurement being indicative of the radiant flux incident on the front surface.

    Abstract translation: 一种自校准辐射计,包括具有用于接收入射辐射通量的前表面的块,用于接收内部施加的热的相同配置的后表面和用于将后表面从前表面热绝缘的中间部分,所述前表面能够吸收 基本上加热入射到其上的所有辐射通量并且能够重新辐射基本上所有吸收的热量,并且后表面能够基本上辐射所有施加到其上的热量;热电偶构造,用于感测由前表面和后表面中的每一个辐射的热量, 指示器,用于指示感测到的热量的任何差异;加热元件,用于向后表面施加足够的热量,使得由前表面和后表面辐射的热量没有差异由指示器指示;以及测量电路, 后表面,这种测量表示入射在t上的辐射通量 他的前面。

    Method and system of measuring surface temperature

    公开(公告)号:US09689746B2

    公开(公告)日:2017-06-27

    申请号:US13993468

    申请日:2011-12-09

    Abstract: Provided is a measuring method capable of accurately measuring the surface temperature of a surface to be measured, uninfluenced by the emissivity distribution of the surface to be measured. A surface to be measured having an emissivity distribution, a radiometer that measures a radiance distribution of the surface to be measured, and an auxiliary heat source installed in a specular reflection position from the radiometer with respect to the surface to be measured are prepared, radiances of two places having different emissivities of the surface to be measured are measured at two different auxiliary-heat-source temperatures, a reflectance ratio of the two places having the different emissivities is calculated on the basis of two measured radiances of the two places having the different emissivities, and temperature of the surface to be measured is obtained using reflectance ratio and measured radiances of the two places having different emissivities.

    THERMAL IMAGING CALIBRATION SYSTEM AND METHOD
    38.
    发明申请
    THERMAL IMAGING CALIBRATION SYSTEM AND METHOD 审中-公开
    热成像校准系统和方法

    公开(公告)号:US20160238454A1

    公开(公告)日:2016-08-18

    申请号:US15021571

    申请日:2014-08-12

    Applicant: SELEX ES LTD

    Abstract: A system and method for calibrating an imaging system includes a shutter that is moveable in to the optical path of the imaging system to generate an image of the shutter surface, which is flat and uniform. The shutter can be moved in and out of the optical path between first and second positions. The shutter is heated whilst in the second position and then returned to the first position. Data sets generated at two different temperatures enable the image generated by the imaging system in normal use to be to be adjusted for responsivity and variation in DC offset of the specific pixel array.

    Abstract translation: 用于校准成像系统的系统和方法包括可移动到成​​像系统的光路中的快门,以生成平坦且均匀的快门表面的图像。 快门可以在第一和第二位置之间移动进出光路。 快门在第二位置被加热,然后返回到第一位置。 在两个不同温度下生成的数据集使得正常使用中由成像系统产生的图像将被调整以适应特定像素阵列的DC偏移的响应性和变化。

    Device for Testing a Sensor of Train Undercarriage Temperatures
    39.
    发明申请
    Device for Testing a Sensor of Train Undercarriage Temperatures 审中-公开
    用于测试火车底盘传感器温度的装置

    公开(公告)号:US20150131696A1

    公开(公告)日:2015-05-14

    申请号:US14577799

    申请日:2014-12-19

    CPC classification number: G01J5/522 B61K9/06 G01J5/02 G01J5/524

    Abstract: A test apparatus for testing an IR sensor of train undercarriage temperatures is disclosed. The IR sensor may be used to obtain infrared IR emission data by sensing a wheel or a wheel bearing of a rail vehicle. The test apparatus may comprise a heat emitter for supplying IR emissions at a reference temperature to the IR sensor. A support may support the heat emitter at a position spaced from the passage of the rail vehicle and in an orientation for directing the IR emissions at the IR sensor.

    Abstract translation: 公开了一种用于测试列车起落架温度的IR传感器的测试装置。 IR传感器可用于通过感测轨道车辆的车轮或车轮轴承来获得红外IR发射数据。 测试装置可以包括用于在IR传感器的基准温度下提供IR发射的发热器。 支撑件可以在与轨道车辆的通道间隔开的位置处支撑发热器,并且在用于将IR发射引导到IR传感器的方向上支撑。

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