Optical temperature sensors
    41.
    发明授权
    Optical temperature sensors 失效
    光学温度传感器

    公开(公告)号:US5180227A

    公开(公告)日:1993-01-19

    申请号:US756551

    申请日:1991-09-09

    Abstract: An optical temperature sensor has an outer probe with a sapphire element at its forward end within a stagnation chamber through which hot gas flows and heats a thermally-emissive coating on the element. A lens focusses radiation emitted by the coating onto one end of a fibre-optic cable that extends within the rear of the probe. A gas passage along the probe enables cooling gas to flow from an inlet at the rear end, around the fibre optic cable, lens and through an outlet rearwardly of a transparent thermal barrier which protects the sapphire element from the cooling gas.

    Abstract translation: 光学温度传感器具有外探针,其前端具有蓝宝石元件,位于停滞室内,热气通过其流动并加热元件上的热发射涂层。 透镜将由涂层发射的辐射聚焦到在探头后部延伸的光纤电缆的一端。 沿着探针的气体通道使得冷却气体能够从后端的入口,光纤电缆,透镜周围以及通过保护蓝宝石元件免受冷却气体的透明热障的后面的出口流动。

    Blackbody fired on silica fiber
    42.
    发明授权
    Blackbody fired on silica fiber 失效
    黑色光纤上的黑体

    公开(公告)号:US5164999A

    公开(公告)日:1992-11-17

    申请号:US703003

    申请日:1991-05-20

    Inventor: Peter Shifflett

    Abstract: A precious metal blackbody radiator fired on a silica or sapphire fiber is disclosed for use in an optical fiber thermometer. The fiber can be coated or uncoated. If a coated fiber is used, the fiber can be a silica or sapphire fiber, protected with an outer metallic coating, such as platinum, which may be electroplated over a thin electrically conductive film coated on the fiber. The blackbody radiator may be mounted on a first end of the fiber, and the fiber may have a second end terminating at a receptor apparatus. The blackbody may comprise semisolid platinum paste placed on a coated or uncoated fiber, dried, and fired over a flame or in a high-temperature furnace. The firing step causes strong adhesion of the blackbody to the fiber.

    Fiber optic pyrometry with large dynamic range
    45.
    发明授权
    Fiber optic pyrometry with large dynamic range 失效
    光纤高温测量仪具有较大的动态范围

    公开(公告)号:US4679934A

    公开(公告)日:1987-07-14

    申请号:US763575

    申请日:1985-08-08

    Abstract: Fiber optic probe apparatus usable for measuring temperatures with increased dynamic range and frequency domain response and desirable measurement accuracy. A black body signal source, fiber optic signal coupling, and extension of the transducer dynamic range with optical multiplexing are employed; the instrument operates in the range of 1.6 micrometers of optical energy wavelength and preferably employs recently improved indium gallium arsenide photodiode transducer devices and transducer frequency domain compensation. Use of the instrument in measuring combustion flame transient temperatures is disclosed.

    Abstract translation: 可用于测量温度的光纤探头设备,具有增加的动态范围和频域响应以及所需的测量精度。 采用黑体信号源,光纤信号耦合,以及使用光复用的传感器动态范围的扩展; 仪器工作在1.6微米的光能波长范围内,最好采用最近改进的砷化铟镓光电二极管传感器器件和换能器频域补偿。 公开了使用仪器测量燃烧火焰瞬态温度。

    Temperature measuring arrangement for a cast metal furnace
    46.
    发明授权
    Temperature measuring arrangement for a cast metal furnace 失效
    铸造金属炉的温度测量装置

    公开(公告)号:US4647222A

    公开(公告)日:1987-03-03

    申请号:US771678

    申请日:1985-09-03

    Abstract: A temperature measuring device for a metal caster comprises a radiation pyrometer including an IR diode for measuring the head radiation of the metal melt in the crucible of the metal caster. For this purpose, a graphite body dips into the metal melt. The graphite body is seated coaxially around one end of a hollow tube to whose other end is coupled a glass fiber cable which is connected with the IR evaluation diode. The graphite body which dips into the metal melt and simultaneously serves in a known manner as a closing plug for the crucible, now emits thermal radiation into the interior of the tube, such radiation substantially corresponding to the composition of the thermal radiation of a blackbody having the temperature of the metal melt. This thermal radiation is coupled into the glass fiber cable at the other end of the tube and fed to the IR diode for evaluation. This solution permits a relatively inertia-free and very precise measurement, since the measured thermal radiation no longer depends on the type of metal melt employed and, on the other hand, the IR diode employed for the measurement has a certain distance from the caster and is thus free of radiation influences on the part of the caster which could falsify the measuring result.

    Abstract translation: 用于金属脚轮的温度测量装置包括辐射高温计,其包括用于测量金属脚轮的坩埚中的金属熔体的头部辐射的IR二极管。 为此,石墨体浸入金属熔体中。 石墨体同轴地位于中空管的一端,另一端与IR评估二极管连接的玻璃纤维线连接。 浸入金属熔体中同时以公知的方式用作坩埚的封闭塞的石墨体现在将热辐射发射到管的内部,这种辐射基本上对应于具有黑体的黑体的热辐射的组成, 金属熔体的温度。 该热辐射在管的另一端耦合到玻璃纤维电缆中,并馈送到IR二极管进行评估。 该解决方案允许相对无惯量和非常精确的测量,因为测量的热辐射不再取决于所使用的金属熔体的类型,另一方面,用于测量的IR二极管与施法者有一定的距离, 因此无法对施法者施加辐射影响,这可能会导致测量结果的错误。

    Optical fiber thermometer
    47.
    发明授权
    Optical fiber thermometer 失效
    光纤温度计

    公开(公告)号:US4576486A

    公开(公告)日:1986-03-18

    申请号:US525771

    申请日:1983-08-23

    Applicant: Ray R. Dils

    Inventor: Ray R. Dils

    Abstract: A temperature measuring device suitable for high temperature measurements in the range of 500.degree.-2400.degree. C. utilizing a blackbody cavity to emit radiation in the wavelength band of 0.3 .mu.m-1.0 .mu.m. The emitted light is transmitted to a photodetector via a high temperature ceramic fiber which is transparent to the wavelength band radiated. The radiance of the cavity is utilized as a measure of its temperature.

    Abstract translation: 一种温度测量装置,适用于500°-2400°C范围内的高温测量,利用黑体腔发射波长为0.3μm-1.0μm的辐射。 发射的光通过对辐射波长带透明的高温陶瓷光纤传输到光电检测器。 空腔的辐射被用作其温度的度量。

    Black submillimeter radiation detector
    48.
    发明授权
    Black submillimeter radiation detector 失效
    黑色次级辐射探测器

    公开(公告)号:US3660659A

    公开(公告)日:1972-05-02

    申请号:US3660659D

    申请日:1971-02-03

    Applicant: US NAVY

    Abstract: A radiation detector, as a standard reference for determining the spectral response of any detectors in the submillimeter wavelength region, comprising a conical radiation receiver whose inner surface is coated with black pigment and having a bolometer flake of gallium doped germanium soldered to its outer surface substantially midway, between its base and apex, and a cooled light pipe for introducing radiant energy into the interior of the receiver.

    Abstract translation: 作为用于确定亚毫米波长区域中的任何检测器的光谱响应的标准参考的辐射检测器,包括锥形辐射接收器,其内表面涂覆有黑色颜料,并且具有焊接到其外表面的镓掺杂锗的测辐射热片 在其基部和顶点之间的中间,以及用于将辐射能引入接收器内部的冷却的光管。

    System and method for remote temperature measurements in a harsh environment

    公开(公告)号:US09816865B2

    公开(公告)日:2017-11-14

    申请号:US14529632

    申请日:2014-10-31

    Abstract: A temperature sensing device includes a probe unit on a first end and a sensor unit on a second end opposite the first end. The first end is introduced into an environment to be measured, such as an exhaust gas line from a combustion engine, and the second end is positioned in a region outside of the environment such that the sensor unit is at least partially insulated from a temperature of the environment. The probe unit, exposed to the temperature of the environment, achieves a temperature that corresponds to the temperature of the environment. The sensor unit is operable to sense the temperature of the probe unit and generate a corresponding electrical signal usable to determine a sensed temperature of the environment. The temperature of the environment can be determined on a cycle-by-cycle basis, and is usable for implementing advanced combustion strategies such as HCCI and SACI.

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