Thermal image dynamic range expander
    2.
    发明授权
    Thermal image dynamic range expander 失效
    热图像动态范围扩展器

    公开(公告)号:US4634870A

    公开(公告)日:1987-01-06

    申请号:US730880

    申请日:1985-05-06

    申请人: Travis W. Metcalf

    发明人: Travis W. Metcalf

    CPC分类号: G01J5/42 G01J9/02 H04N5/33

    摘要: A gas cell array absorbs infrared energy radiated by a viewed scene. A la interferometer has its resultant intensity changed by the cell's changing length. This is monitored by a vidicon tube that feeds the signal to a digitizer and onto a video display. The incident infrared radiation is chopped into quantized amounts of energy and memory units receive the digitized output of the vidicon tube. Subtractors receive vidicon tube signals simultaneously with quiescent reference levels data. The subtractors form a difference signal by subtracting the quiescent reference level signal from the immediate signal being passed to control threshold detectors. An extended dynamic range of 1,000:1 is accomplished for the preferred embodiment.

    摘要翻译: 气体电池阵列吸收观看场景辐射的红外能量。 激光干涉仪的结果强度随着细胞变化的长度而改变。 这是通过将信号馈送到数字转换器和视频显示器的视频管来监视的。 将入射的红外辐射切成量化的能量,并且存储单元接收视频管的数字化输出。 减法器与静态参考电平数据同时接收视频管信号。 减法器通过从传递给控制阈值检测器的即时信号减去静态参考电平信号来形成差分信号。 对于优选实施例,实现了1,000:1的扩展动态范围。

    Radiometer probe
    3.
    发明授权
    Radiometer probe 失效
    辐射计探头

    公开(公告)号:US3942891A

    公开(公告)日:1976-03-09

    申请号:US544988

    申请日:1975-01-29

    IPC分类号: G01J5/38 G01J5/48

    CPC分类号: G01J5/38

    摘要: A hand-held radiometer for non-contact temperature measurement of objects is provided with a probe which is adapted to be mounted on the optical barrel of the radiometer to permit the radiometer to which it is attached to provide contact temperature measurements. The probe comprises a thin plastic film of low thermal mass which is shaped on one end thereof to be easily deformed when brought into contact with a specimen whose temperature is desired to be measured. The inner surface of the plastic film has a high emissivity, and a retainer means is provided on the other end of the thin plastic film for mounting the probe on the optical barrel of the radiometer.

    摘要翻译: 用于对物体进行非接触式温度测量的手持式辐射计设置有适于安装在辐射计的光学镜筒上的探头,以允许与其连接的辐射计提供接触温度测量。 该探针包括一个低热量的薄塑料薄膜,该塑料薄膜的一端成形,当与要测量温度的样品接触时容易变形。 塑料薄膜的内表面具有高发射率,在薄塑料薄膜的另一端设有保持装置,用于将探针安装在辐射计的光学筒上。

    Fluidic infrared sensing device
    4.
    发明授权
    Fluidic infrared sensing device 失效
    流体红外传感装置

    公开(公告)号:US3598136A

    公开(公告)日:1971-08-10

    申请号:US3598136D

    申请日:1969-03-17

    申请人: AVCO CORP

    摘要: The disclosure illustrates a fluidic infrared sensor comprising a thermally conductive, laminar flow element exposed to infrared energy and series connected with a control jet of a proportional fluidic amplifier. The laminar flow element is heated, thereby varying the flow of the control jet and the deflection of the amplifier''s power stream to produce a pressure output proportional to the level of infrared energy. In order to maximize the amplifier output due to very low levels of infrared energy, the laminar flow element is positioned in a thermal insulating chamber having a reflective inner surface. An opening in line with the focus point of a reflective parabolic mirror permits concentrated infrared energy to be applied to the fluidic device positioned in line with the opening. An alternate laminar flow element for this application senses the direction from which the infrared source originates.

    INFRARED SENSOR STRUCTURE
    5.
    发明申请

    公开(公告)号:US20210055163A1

    公开(公告)日:2021-02-25

    申请号:US16961955

    申请日:2018-08-29

    发明人: Xiaoxu KANG

    摘要: The present disclosure discloses an infrared sensor structure, comprises a cantilever switch array, the cantilever switch array comprises cantilever switches, and each cantilever switch comprises a cantilever beam and a switch corresponding to the cantilever beam, vertical heights from the cantilever beams to the switches in different cantilever switches are different from each other, when the cantilever beams are deformed towards the switches and connect to the switches, the switches turn on; wherein, deformations of different cantilever beams produced by absorbing infrared signal are different from each other, the intensity of the infrared signal can be quantified by number of the switches on, so as to realize detection of the infrared signal. The manufacturing of the infrared sensor structure in the present disclosure can be compatible with the existing semiconductor CMOS process.

    Fiber optic temperature sensor
    6.
    发明授权
    Fiber optic temperature sensor 有权
    光纤温度传感器

    公开(公告)号:US08277119B2

    公开(公告)日:2012-10-02

    申请号:US11978538

    申请日:2007-10-29

    IPC分类号: G01K11/20 G01J5/38

    摘要: A temperature sensor, capable of operating in electromagnetic and/or electric environments such as electrical generators, motors and transformers and/or in environments where vibratory conditions are frequent or continuous, contains at least one light emitting optic fiber and one light receiving optic fiber and an electrically non-conductive dilatable object which variably occults the emitted light as the object's temperature varies. The light receiving optic fiber transmits light intensity and light intensity changes to an electronic device that may include a photometer and light-to-temperature computing equipment.

    摘要翻译: 能够在诸如发电机,电动机和变压器的电磁和/或电气环境中和/或在振动条件频繁或连续的环境中操作的温度传感器包含至少一个发光光纤和一个光接收光纤, 当物体的温度变化时,可变地遮蔽发射的光的不导电的可扩展物体。 光接收光纤将光强度和光强变化传输到可包括光度计和光温计算设备的电子设备。

    Fiber optical interferometric temperature sensor with ramp modulation
    10.
    发明授权
    Fiber optical interferometric temperature sensor with ramp modulation 失效
    具有斜坡调制的光纤干涉式温度传感器

    公开(公告)号:US4714342A

    公开(公告)日:1987-12-22

    申请号:US684925

    申请日:1984-12-18

    IPC分类号: G01K11/32 G01J5/38 G01B9/02

    CPC分类号: G01K11/32

    摘要: A temperature sensor comprises a single-mode all-fiber Michelson interferometer. The interferometer includes a bi-directional coupler and signal and reference fibers having mirrored ends. These two fibers are of unequal lengths to provide an optical path length in-balance and the signal fiber may have a metal temperature sensing probe at its mirrored end. The injection current of a laser light source for the interferometer is modulated with a ramping signal so that a linearly moving interference pattern is produced at the output by mixing of the reflected beams propagated in the signal and reference fibers. The interference pattern is monitored by a photodetector and electronic circuitry processes the output of the photodetector to determine the optical phase shift between the light beams propagated in the signal and reference fibers, which phase shift is dependent on expansion or contraction of the signal fiber with respect to the reference fiber and is therefore related to the temperature at the sensing probe.

    摘要翻译: PCT No.PCT / GB84 / 00138 Sec。 371日期1984年12月18日 102(e)1984年12月18日PCT PCT。1984年4月24日PCT公布。 公开号WO84 / 04385 日期1984年11月8日。温度传感器包括单模全光纤迈克尔逊干涉仪。 干涉仪包括双向耦合器以及具有镜像端的信号和参考光纤。 这两条光纤具有不相等的长度以提供平衡的光路长度,并且信号光纤在其镜像端可以具有金属温度感测探针。 用于干涉仪的激光光源的注入电流用斜坡信号调制,使得通过混合传播在信号和参考光纤中的反射光束在输出端产生线性移动的干涉图案。 干涉图案由光电检测器监测,并且电子电路处理光电检测器的输出以确定在信号和参考光纤中传播的光束之间的光学相移,该相移取决于信号光纤的扩展或收缩 与参考光纤相关,因此与感测探头的温度有关。