公开(公告)号：US20040240517A1

公开(公告)日：2004-12-02

申请号：US10492889

申请日：2004-04-16

Inventor： John Howard

IPC: G01J005/00

CPC classification number: G01J5/58 ,  G01J3/45 ,  G01J5/00 ,  G01J5/0834 ,  G01J2005/583 ,  G01J2005/586

Abstract: Remote sensing of the temperature of a greybody or blackbody radiator is effected by passing its radiation (24) through a modulated infrared filter spectrometer. The infrared filter comprises, in sequence, a band pass filter (20), a first polariser (21) which polarises the radiation, an electro-optical element (22) which splits the polarised radiation into two orthogonally polarised components, and a second polariser (23). A lens (28) images the radiation leaving the second polariser onto a detector (27). The electrical signal from the detector (27) is input to a numerical analyser. The electro-optical element (22), typically comprising a birefringent crystal assembly (25) and a birefringent trim plate (26), is configured so that the net optical delay of the orthogonally polarised components passed through it is such that the recombined components are at or near a peak or trough in their interferogram. A sinusoidally varying voltage is applied to the electro-optical element to modulate the net delay of the components passed through the electro-optical element. The numerical analyser is programmed to compute the harmonic amplitude ratio (the ratio of signal amplitudes at the fundamental and second harmonic of the frequency of the modulating voltage) of the signal that it receives from the detector (27). The harmonic amplitude ratio is a function of the temperature of the radiator, which can be estimated by reference to a calibration look-up table.

Abstract translation: 通过使其辐射（24）通过调制的红外滤光器光谱仪来实现对灰体或黑体辐射体的温度的遥感。 红外滤光器依次包括带通滤波器（20），偏振辐射的第一偏振器（21），将偏振辐射分成两个正交极化分量的电光元件（22）和第二偏振器 （23）。 透镜（28）将离开第二偏振器的辐射图像到检测器（27）上。 来自检测器（27）的电信号被输入到数字分析器。 通常包括双折射晶体组件（25）和双折射装饰板（26）的电光元件（22）被配置为使得通过它的正交极化分量的净光学延迟使得重组组分为 在它们的干涉图中的峰或谷附近。 将正弦变化的电压施加到电光元件以调节通过电光元件的部件的净延迟。 数字分析仪被编程为计算其从检测器（27）接收的信号的谐波振幅比（在调制电压的频率的基波和二次谐波处的信号幅度的比率）。 谐波振幅比是散热器的温度的函数，可以通过参考校准查找表来估计。

公开(公告)号：US20040233968A1

公开(公告)日：2004-11-25

申请号：US10875682

申请日：2004-06-25

Applicant: Omron Corporation

Inventor： Makoto Tabata ,  Hiroyuki Ota ,  Yoshihide Onishi ,  Yoshihiko Ogura ,  Tetsuya Sato ,  Taiga Sato

IPC: G01J005/00

CPC classification number: G01J5/02 ,  A61B5/01 ,  G01J5/021 ,  G01J5/025 ,  G01J5/026 ,  G01J5/04 ,  G01J5/045 ,  G01J5/049 ,  G01J5/12 ,  G01J5/16 ,  G01J5/522 ,  G01J2005/068

Abstract: A first thermistor 8 and a second thermistor 9 are arranged forwardly and rearwardly of a thermopile sensor 5. A thermopile chip 55 is arranged and interposed between the first thermistor 8 and an integrated thermistor 57. A sensor cover is mounted in contact with front and side portions of a can portion 59 of a thermopile casing 56. A temperature or a radiant quantity of infrared rays on the front portion of the can portion is estimated from a temperature change of the integrated thermistor per second.

公开(公告)号：US20040232336A1

公开(公告)日：2004-11-25

申请号：US10443086

申请日：2003-05-22

Inventor： A. Wayne Antesberger

IPC: G01J005/00

CPC classification number: G01J5/02 ,  G01J5/023 ,  G01J5/20

Abstract: An infrared (IR) imaging system in accordance with the present invention includes a substrate, a plurality of disc-shaped microbolometer pixels that combined to define a Focal Plane Array. Each pixel is electrically connected to the substrate with a pair of opposing helical isolation legs. One end of the isolation leg is attached to the pixels periphery while the other is fixed to that substrate so that the FPA and a plane containing the substrate have a parallel, spaced-apart relationship. In this manner, the isolation leg(s) provides an electrical communication path from each pixel to the substrate as each pixel undergoes an internal change in resistance due to absorption of IR energy. At the same time, the legs separate the pixels from the substrate so that there is no heat transfer between the pixel and the substrate due to direct contact. The disc shape arrangement allows for a staggered arrangement of adjacent rows in the array, thereby increasing the fill factor for the FPA of the device.

Abstract translation: 根据本发明的红外（IR）成像系统包括基板，组合以限定焦平面阵列的多个盘形微热辐射计像素。 每个像素与一对相对的螺旋隔离支路电连接到基板。 隔离腿的一端附接到像素周边，而另一端固定到该基板，使得FPA和包含基板的平面具有平行的间隔关系。 以这种方式，当每个像素由于IR能量的吸收而经历内部的电阻变化时，隔离支路提供从每个像素到衬底的电通信路径。 同时，腿部与基板分开，使得由于直接接触，像素和基板之间不存在热传递。 盘形布置允许阵列中相邻行的交错排列，从而增加了装置的FPA的填充因子。

公开(公告)号：US20040200961A1

公开(公告)日：2004-10-14

申请号：US10761769

申请日：2004-01-20

Inventor： William J. Parrish ,  Naseem Y. Aziz ,  Eric A. Kurth ,  John D. Schlesselmann

IPC: G01J005/00

CPC classification number: G01J5/22 ,  G01J5/02 ,  G01J5/023 ,  G01J5/20 ,  G01J5/522 ,  H04N5/33 ,  H04N5/361 ,  H04N5/365

Abstract: Systems and methods for microbolometer focal plane arrays are disclosed. For example, in accordance with an embodiment of the present invention, microbolometer focal plane array circuitry is disclosed for a microbolometer array having shared contacts between adjacent microbolometers. Various techniques may be applied to compensate for non-uniformities, such as for example, to allow operation over a calibrated temperature range.

Abstract translation: 公开了用于微测光计焦平面阵列的系统和方法。 例如，根据本发明的实施例，公开了一种具有在相邻的微测热计之间具有共享触点的微热辐射计阵列的微测热计焦平面阵列电路。 可以应用各种技术来补偿不均匀性，例如允许在校准的温度范围上进行操作。

公开(公告)号：US20040188615A1

公开(公告)日：2004-09-30

申请号：US10400261

申请日：2003-03-28

Inventor： Michael DeFlumere

IPC: G01J005/00

CPC classification number: G01J5/02 ,  G01J5/0245 ,  G01J5/10 ,  G01J5/20 ,  H01L2224/48091 ,  H01L2224/48145 ,  H01L2924/00014 ,  H01L2924/00012

Abstract: An IR detector for use in an array of detectors is provided with better thermal resolution resulting in increased range and increased contrast for a standard 30 frame per second frame rate includes a support structure for the detector made from thermoelectric material supports which transports heat away from the detecting material during each readout cycle just after the instantaneous reading has been made. By removing heat thermoelectrically from the detector, detector sensitivity is improved, higher frame rates are achievable and an improved fill factor is the result of being able to more closely pack the detector elements.

Abstract translation: 提供用于检测器阵列中的IR检测器具有更好的热分辨率，导致标准的30帧/秒帧速率的增加的范围和增加的对比度包括用于由热电材料支撑器制成的检测器的支撑结构，该支架结构将热量从 在进行瞬时读取之后的每个读出周期期间检测材料。 通过从检测器中热电离除热，检测器灵敏度得到改善，可实现更高的帧速率，改进的填充因子是能够更紧密地包装检测器元件的结果。

公开(公告)号：US20040169144A1

公开(公告)日：2004-09-02

申请号：US10483249

申请日：2004-01-09

Inventor： Katsumi Shibayama

IPC: G01J005/00

CPC classification number: G01J5/12 ,  G01J5/16

Abstract: In an infrared detector array according to the present invention, on a thin film with a periphery portion supported by a frame, three or more infrared detecting pixels are arranged in an array pattern so that the hot junctions of thermocouples are arranged above a concave portion and the cold junctions thereof are arranged above the frame. Compensation means is provided which compensates for a difference between the detection sensitivity of the infrared detecting pixel arranged in a peripheral end portion and the detection sensitivity of the infrared detecting pixel arranged in an intermediate portion based on a correlation between electromotive force extracted when the infrared detecting pixel is illuminated with infrared radiation and its position. Owing to this configuration, a plurality of infrared detecting pixels can be integrated and the sensitivity thereof can be made sufficiently high and uniform.

Abstract translation: 在根据本发明的红外检测器阵列中，在具有由框架支撑的周边部分的薄膜上，三个或更多个红外检测像素以阵列图案布置，使得热电偶的热接点布置在凹部的上方， 其冷连接点设置在框架的上方。 提供补偿装置，其补偿布置在外围端部的红外线检测像素的检测灵敏度与布置在中间部分中的红外线检测像素的检测灵敏度之间的差异，基于当红外检测时提取的电动势之间的相关性 像素被红外线照射及其位置。 由于这种结构，可以将多个红外线检测像素整合起来，并且可以使其灵敏度足够高和均匀。

公开(公告)号：US20040159788A1

公开(公告)日：2004-08-19

申请号：US10753386

申请日：2004-01-09

Inventor： Keitaro Shigenaka ,  Yoshinori Iida

IPC: G01J005/00

CPC classification number: G01J5/24 ,  H04N5/33

Abstract: An infrared image sensor comprises, a substrate having an image area on which infrared radiation is made incident and an non-image area out of the image area, plural first heat-sensitive parts arranged in rows and columns on the image area, plural second heat-sensitive parts provided in the non-image area so as to correspond to the respective rows of the first heat-sensitive parts in the image area with the same thermoelectric conversion function as that of the first heat-sensitive parts, a bias current supply circuit supplying a bias current to the first heat-sensitive parts and second heat-sensitive parts, an output circuit outputting an electric signal of the first heat-sensitive parts, and a bias current control circuit controlling the bias current to be fed to the first heat-sensitive parts, according to an electric signal of the second heat-sensitive parts.

Abstract translation: 红外图像传感器包括具有入射红外线的图像区域和图像区域中的非图像区域的基板，在图像区域上排列成行和列的多个第一热敏部件，多个第二热量 设置在所述非图像区域中的与所述图像区域中的所述第一热敏部件的各行对应的感光部件具有与所述第一热敏部件相同的热电转换功能，偏置电流供给电路 向第一热敏部件和第二热敏部件提供偏置电流;输出电路，输出第一热敏部件的电信号;以及偏置电流控制电路，控制要馈送到第一热敏部件的第一热量 敏感部件，根据第二热敏部件的电信号。

公开(公告)号：US20040149910A1

公开(公告)日：2004-08-05

申请号：US10486836

申请日：2004-04-08

Inventor： Teruki Hatatani ,  Suguru Fukui

IPC: G01J005/00

CPC classification number: G01J5/10 ,  G01J5/34

Abstract: An infrared detecting circuit is provided with a current-to-voltage converting circuit including a capacitor connected with an inverting input terminal and an output terminal of an operational amplifier and a resistance circuit element connected in parallel with the capacitor, an inverting amplifying circuit connected with an output side of the current-to-voltage converting circuit, a band-pass filter circuit connected with an output side of the voltage amplifying circuit, and an output circuit connected with an output side of the band-pass filter circuit. The infrared detecting circuit and an infrared detector including this circuit can be miniaturized.

Abstract translation: 红外线检测电路具备电流 - 电压转换电路，该电流 - 电压转换电路包括与反相输入端子连接的电容器和与电容器并联连接的运算放大器和电阻电路元件的输出端子，反相放大电路与 电压 - 电压转换电路的输出侧，与电压放大电路的输出侧连接的带通滤波器电路，以及与带通滤波器电路的输出侧连接的输出电路。 可以使红外线检测电路和包含该电路的红外线检测器小型化。

公开(公告)号：US20040129883A1

公开(公告)日：2004-07-08

申请号：US10338531

申请日：2003-01-08

Applicant: Home Data Source

Inventor： Brian C. Dougherty ,  Robert M. Bunch ,  Rachel E. Lukens ,  James Nagel ,  Christopher L. Wolfe

IPC: G01J005/00

CPC classification number: G08B13/191 ,  G01J5/34 ,  Y10S250/01

Abstract: A passive low power device for detection of boundary crossings includes a dual element pyro-electric infrared (PIR) sensor. The sensor is designed with a lens that provides a very narrow field of view and two pyro-electric elements that produce a waveform with two voltage swings of opposite polarity when a warm object moves past the sensor. The waveform is filtered and amplified before it is passed on to a comparator. The comparator triggers off the extremes of each waveform. The comparator includes two outputs that are normally high, but go low when a change in infrared radiation is detected. A processor makes an approximation of the zero crossing time based on the rising edge of the first comparator output. This approximate zero crossing time serves as an estimate of the boundary crossing time.

Abstract translation: 用于检测边界交叉的无源低功率设备包括双元件热电红外（PIR）传感器。 传感器设计有一个提供非常窄的视野的透镜和两个热电元件，当暖物体移动通过传感器时，产生具有相反极性的两个电压摆幅的波形。 波形在通过比较器之前被滤波和放大。 比较器触发每个波形的极值。 比较器包括通常为高的两个输出，但是当检测到红外辐射的变化时，该输出变低。 处理器基于第一比较器输出的上升沿来近似于过零时间。 这个近似的零交叉时间作为边界交叉时间的估计。

公开(公告)号：US20040114662A1

公开(公告)日：2004-06-17

申请号：US10475500

申请日：2003-10-22

Inventor： Andreas Messler

IPC: G01J005/00

CPC classification number: B29C65/1661 ,  B23K26/032 ,  B23K26/034 ,  B29C65/1616 ,  B29C65/1635 ,  B29C65/1658 ,  B29C65/1674 ,  B29C65/8284 ,  B29C66/1122 ,  B29C66/41 ,  B29C66/7332 ,  B29C66/73361 ,  B29C66/73365 ,  B29C66/73771 ,  B29C66/73773 ,  B29C66/73921 ,  B29C66/836 ,  B29C66/91216 ,  B29C66/91221 ,  B29C66/91411 ,  B29C66/9161 ,  B29C66/961 ,  B29K2995/0027 ,  B29K2995/0072 ,  G01N21/88 ,  G01N21/958 ,  B29C65/00

Abstract: The invention relates to an inspection method for inspecting the quality of a weld seam (15) during which a material, which is transparent to electromagnetic radiation (30) of a defined frequency, is used in a workpiece (10) consisting of two plastic parts (11, 12). In order to be able to reliably inspect the weld seam, the invention provides that an electromagnetic inspection radiation (30) is irradiated inside the workpiece (10). The resulting reflections between the boundary surfaces in the workpiece (10) and the portions of inspection radiation (30, 30null) exiting from the workpiece (10) are affected by the quality of the produced weld seam (15). By measuring the exiting radiation (33, 33null), it can be clearly determined whether the workpiece (10) has a defective or a tolerable seam (15).

Abstract translation: 本发明涉及一种用于检查焊缝质量的检查方法，其中在由两个塑料部件组成的工件（10）中使用对具有限定频率的电磁辐射（30）透明的材料 （11,12）。 为了能够可靠地检查焊缝，本发明提供了在工件（10）内照射电磁检查辐射（30）。 工件（10）的边界面与从工件（10）出射的检查辐射部分（30,30'）之间产生的反射受到生产的焊缝（15）的质量的影响。 通过测量出射辐射（33,33'），可以清楚地确定工件（10）是否具有缺陷或可容许的接缝（15）。