Current measuring apparatus using light-emitting devices
    1.
    发明授权
    Current measuring apparatus using light-emitting devices 失效
    使用发光装置的电流测量装置

    公开(公告)号:US4378496A

    公开(公告)日:1983-03-29

    申请号:US199446

    申请日:1980-10-22

    IPC分类号: G01R19/00 G01R15/22 G02B5/14

    CPC分类号: G01R15/22

    摘要: The invention relates to a device for measuring current which traverses a light-emitting structure, the current passage thus causing emission of light. It is characterized in that the emitted light signal is adapted to be supplied to two photo-detectors having different sensitivity spectra and/or with at least one photo-detector being provided with an optical filter. The output signals of the photo-detectors are adapted to be supplied to a quotient forming member and/or a calculating member for obtaining a signal which is compensated for temperature variations in the light-emitting structure and other sources of error.

    摘要翻译: 本发明涉及一种用于测量穿过发光结构的电流的装置,该电流通道因而导致发光。 其特征在于,发射光信号适于提供给具有不同灵敏度光谱的两个光电检测器和/或至少一个光电检测器设置有滤光器。 光检测器的输出信号适于提供给商形成部件和/或计算部件,以获得补偿发光结构中的温度变化和其它误差源的信号。

    Method for comparison between a first optical signal and at least one
other signal
    3.
    发明授权
    Method for comparison between a first optical signal and at least one other signal 失效
    用于比较第一光信号和至少一个其它信号的方法

    公开(公告)号:US4651014A

    公开(公告)日:1987-03-17

    申请号:US525045

    申请日:1983-07-22

    申请人: Olof Engstrom

    发明人: Olof Engstrom

    CPC分类号: G06K9/74

    摘要: The present invention relates to a method for comparison between a first optical signal (.PHI..sub.1) and at least one other signal. The invention can for instance be used for image recognition. In this application it is a problem to be able to perform parallel processing of the content of an image. This problem among others is solved in connection with the invention by illuminating a MIS-structure (11; FIG. 1) with the first optical signal (.PHI..sub.1), which creates an optically induced change in the surface potential of the MIS-structure and by influencing the surface potential also by said at least one other signal by illuminating the MIS-structure (11; FIG. 1) with a second optical signal (.PHI..sub.2) or by applying the signal in the form of a voltage across the structure or by providing the structure with charge in the insulator or its interfaces or by a combination of these methods and by varying at least one of all signals as a function of time.

    摘要翻译: PCT No.PCT / SE82 / 00390 Sec。 371日期1983年7月22日 102(e)日期1983年7月22日PCT提交1982年11月19日PCT公布。 出版物WO83 / 01852 日期:1983年5月26日。本发明涉及一种用于比较第一光信号(PHI 1)和至少一个其它信号的方法。 本发明可以例如用于图像识别。 在这个应用程序中,能够执行图像内容的并行处理是一个问题。 通过用第一光信号(PHI 1)照亮MIS结构(11;图1)来解决与本发明有关的这个问题,这产生了MIS结构的表面电位的光诱导变化, 通过用第二光信号(PHI 2)照亮MIS结构(11;图1)或通过以跨过整个结构的电压的形式施加信号,通过所述至少一个其它信号来影响表面电位, 通过在绝缘体或其界面中提供电荷的结构或通过这些方法的组合,并通过改变作为时间的函数的所有信号中的至少一个。

    Fiber-optic temperature-measuring apparatus
    4.
    发明授权
    Fiber-optic temperature-measuring apparatus 失效
    光纤温度测量仪

    公开(公告)号:US4376890A

    公开(公告)日:1983-03-15

    申请号:US194397

    申请日:1980-10-06

    CPC分类号: G01K11/3213 G01K1/024

    摘要: A fiber-optic temperature-measuring apparatus which monitors the photo-luminescence of a body of solid material subjected to the temperature to be measured. Exciting radiation is conducted by means of at least one optical fiber towards a material with temperature-dependent luminescence which is in optical contact with the fiber, whereby luminescence occurs. The radiation emitted as a consequence of the luminescence is transmitted via at least one optical fiber from the body to a place of measurement, where a measure of the temperature may be obtained. The luminescent body may consist of a semiconductor material.

    摘要翻译: 一种光纤温度测量装置,其监测经受待测温度的固体材料体的光致发光。 通过至少一根光纤向具有与光纤接触的温度依赖性发光的材料进行激励辐射,从而发光。 作为发光的结果发射的辐射通过至少一根光纤从身体传输到测量位置,其中可以获得温度的测量。 发光体可以由半导体材料组成。

    Optical measuring apparatus for measuring force or pressure
    5.
    发明授权
    Optical measuring apparatus for measuring force or pressure 失效
    用于测量力或压力的光学测量装置

    公开(公告)号:US4451730A

    公开(公告)日:1984-05-29

    申请号:US492651

    申请日:1983-05-09

    IPC分类号: G01L1/24 G01L11/02 G01D5/26

    CPC分类号: G01L11/02 G01L1/24

    摘要: An optical measuring apparatus for measuring force or pressure, having at least one light source, at least one optical fiber for passing light from and to a sensor, and one detector system. The sensor includes a material having pressure- and force-dependent photo luminescence properties, the signal received in the detector system being dependent on the pressure or the force applied to the sensor.

    摘要翻译: 一种用于测量力或压力的光学测量装置,其具有至少一个光源,用于将光从传感器传递到传感器的传感器和一个检测器系统的至少一个光纤。 传感器包括具有压力和力依赖的光发光特性的材料,在检测器系统中接收的信号取决于施加到传感器的压力或力。