公开(公告)号：US20020017607A1

公开(公告)日：2002-02-14

申请号：US09849959

申请日：2001-05-04

Inventor： John Henry Lehman ,  John Andrew Aust

IPC: G01J005/00

CPC classification number: G01J5/34

Abstract: Disclosed is a pyroelectric detector with significantly reduced microphonic noise sensitivity that includes a pyroelectric detector element constructed from a z-cut LiNbO3 or LiTaO3 electret. Selective domain reversal is accomplished in the electret by applying an electric field. Electrodes are attached to either surface of the electret spanning the domain reversed region and a portion of the original domain region to create areas of equal and opposite sensitivity. The detector is mounted in an electrically grounded container or housing. The detector may also be constructed having multiple detector regions to accommodate resonant acoustic frequencies of the electret, to function as a position sensor, or both. In other words, the position sensor has multiple domain regions that also accommodate acoustic frequencies. The detector may also be constructed having domain reversed regions placed on the electret in a periodic pattern having a geometry and spacing that is related to the acoustic impulse response of the electret. Needle domains may also be interspersed in portions or throughout the electret to scatter acoustic waves and thereby reduce acoustic noise. Multiple detectors can be produced in a simple and inexpensive manner using shadow masking techniques.

Abstract translation: 公开了一种具有显着降低的麦克风噪声灵敏度的热电检测器，其包括由z切LiNbO 3或LiTaO 3驻极体构成的热电探测器元件。 通过施加电场在驻极体中实现选择性域反转。 电极附着在跨越域反转区域的驻极体的任一表面和原始区域区域的一部分以产生相等和相反灵敏度的区域。 检测器安装在电接地的容器或外壳中。 检测器还可以被构造成具有多个检测器区域以适应驻极体的谐振声频，用作位置传感器，或两者兼有。 换句话说，位置传感器具有也容纳声频的多个域区域。 检测器还可以被构造成具有以驻极体的周期性图案放置在驻极体上的畴反转区域，其具有与驻极体的声脉冲响应相关的几何形状和间隔。 针状畴也可以分散在整个驻极体中以散射声波，从而降低声学噪声。 可以使用阴影掩蔽技术以简单且廉价的方式产生多个检测器。

公开(公告)号：US20010042825A1

公开(公告)日：2001-11-22

申请号：US09785833

申请日：2001-02-16

Inventor： Ching-ju J. Young

IPC: G01J005/00

CPC classification number: H04N5/217 ,  H04N5/2176 ,  H04N5/33 ,  H04N5/3656

Abstract: A non-dither spatio-temporal low pass filter method for compensating non-uniformity of the responses of detector elements of an infrared detector array. The methods can be used for one-dimensional scanning arrays and for two-dimensional staring arrays. (FIGS. 3 and 6). First it is determined whether the scene and the detector array have sufficient relative motion for use of a spatio-temporal low pass filter type non-uniformity compensation (NUC) algorithm. If so the NUC algorithm is applied, which recursively uses both spatial and temporal information from near neighbors as a basis to correct fixed pattern noise on the detector array.

Abstract translation: 用于补偿红外检测器阵列的检测器元件的响应的不均匀性的非抖动时空低通滤波器方法。 该方法可用于一维扫描阵列和二维凝视阵列。 （图3和图6）。 首先，确定场景和检测器阵列是否具有足够的相对运动以使用时空低通滤波器类型不均匀性补偿（NUC）算法。 如果是，则应用NUC算法，其递归地使用来自近邻的空间和时间信息作为校正检测器阵列上的固定模式噪声的基础。

公开(公告)号：US20040258128A1

公开(公告)日：2004-12-23

申请号：US10870828

申请日：2004-06-17

Inventor： Blaine D. Johs ,  Miroslav Micovic

IPC: G01J005/00

CPC classification number: G01K11/125

Abstract: A method for tracking change in Temperature of Uniaxial or Biaxial Anisotropic Samples utilizing polarized electromagnetic radiation.

Abstract translation: 利用极化电磁辐射跟踪单轴或双轴各向异性样品的温度变化的方法。

公开(公告)号：US20040252749A1

公开(公告)日：2004-12-16

申请号：US10631049

申请日：2003-07-28

Inventor： Christoph Stefan Randazzo

IPC: G01J005/00

CPC classification number: G01J5/22

Abstract: An apparatus (20) for performing a temperature measurement function is proposed. It comprises a first circuit (11) and a second circuit (12). The first circuit (11) has a transistor (M1), a resistor (Rtemp), and a parallel arrangement of n diodes (B1-Bn). The second circuit (12) comprises a transistor (M2) and a parallel arrangement of m diodes (C2). An operational amplifier (13) is on the input side being connected to the first circuit (11) and the second circuit (12). This operational amplifier (13) provides a gate voltage for the transistors (M1, M2). There is an output stage with p output transistors (N1-Np), and an output resistor (r*Rtemp). The output stage performs a current to output voltage conversion in order to provide an output voltage (Vtempout) that depends on the actual temperature (T).

Abstract translation: 提出了一种用于执行温度测量功能的装置（20）。 它包括第一电路（11）和第二电路（12）。 第一电路（11）具有晶体管（M1），电阻器（Rtemp）和n个二极管（B1-Bn）的并联布置。 第二电路（12）包括晶体管（M2）和m个二极管（C2）的并联布置。 输入侧的运算放大器（13）连接到第一电路（11）和第二电路（12）。 该运算放大器（13）为晶体管（M1，M2）提供栅极电压。 存在具有p个输出晶体管（N1-Np）和输出电阻器（r * Rtemp）的输出级。 输出级执行电流输出电压转换，以提供取决于实际温度（T）的输出电压（Vtempout）。

公开(公告)号：US20040240518A1

公开(公告)日：2004-12-02

申请号：US10491817

申请日：2004-04-06

Inventor： Francesso Memoli ,  Volkwin Werner Koster

IPC: G01J005/00 ,  G01K001/12

CPC classification number: G01J5/02 ,  G01J5/004 ,  G01J5/0044 ,  G01J5/029 ,  G01J5/041

Abstract: A device (10) for continuous measurement of the temperature of molten metal in a furnace or recipient for its production and treatment comprises a heat analysis instrument (14) placed in a lance (12) which blows inert gas and/or high-pressure compressed air against a surface of metal slag (18) of a furnace or recipient (20).

Abstract translation: 用于连续测量炉子或接收器中的熔融金属温度用于生产和处理的装置（10）包括放置在喷枪（12）中的热分析仪器（14），其将惰性气体和/或高压压缩 空气抵靠熔炉或接收器（20）的金属渣（18）的表面。

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。