Optical power for electronic circuits using a single photovoltaic component
    1.
    发明公开
    Optical power for electronic circuits using a single photovoltaic component 审中-公开
    从光能量用于与单个光电组件的电子电路

    公开(公告)号:EP2075848A2

    公开(公告)日:2009-07-01

    申请号:EP08170876.0

    申请日:2008-12-05

    IPC分类号: H01L31/02 H01L31/042 H02N6/00

    摘要: Optical power uses light to run remote, isolated circuits without metallic wires. An optical power system may include a single photovoltaic component that supplies a first voltage in response to impingement of light on the photovoltaic component. A voltage booster receives the first voltage from the photovoltaic component and supplies a second voltage signal at a second voltage that is greater than the first voltage. The optical power system may be integrated with a sensor that is powered by the second voltage from the voltage booster. The photovoltaic component may be an inexpensive light emitting diode.

    摘要翻译: 光功率使用光没有金属丝运行远程,隔离电路。 光功率系统可以包括一个单一的光电组件供应响应于所述光伏组件上的光的冲击做了第一电压。 电压升压器接收来自光伏元件的第一电压和在第二电压提供第二电压信号大于做的第一电压。 有传感器并通过由电压升压器的第二电压供电的光功率系统可以被集成。 光伏元件可以是廉价的发光二极管。

    Multiple optic sensor system
    2.
    发明公开
    Multiple optic sensor system 失效
    Mehrfachoptisches传感器系统。

    公开(公告)号:EP0657719A2

    公开(公告)日:1995-06-14

    申请号:EP94309027.4

    申请日:1994-12-05

    IPC分类号: G01D5/26

    CPC分类号: G01D5/268 G01R15/247

    摘要: An optic sensor system comprising an optic sensor (10), a pair of photoelectric devices (12,14) and a pair of optic fibers (16,18) that transmit light respectively between the photoelectric devices (12,14) and the sensor (10). The photoelectric devices (12,14) serve as both a source of input light for the sensor (10) as well as a light detector for the light returned from the sensor (10). A control circuit is used to switch the photoelectric devices (12,14) on and off, thus determining the periods of time that each operates as a source or detector.

    摘要翻译: 该系统包括N个光学传感器,每个光学传感器用接收的输入光进行操作,并提供具有与感测参数相对应的特征的输出光。 包括小于N + 2的装置,每个装置作为光源和光检测器操作。 例如。 一个设备可用于将询问光传输到两个传感器,其中两个设备用于接收来自询问传感器的输出光。 光波导器件用于在传感器和器件之间传输光。 该装置中的至少一个是发光二极管和具有共享共同波导连接的光源/检测器对的混合装置。

    System and method for ultrasonic determination of density
    3.
    发明公开
    System and method for ultrasonic determination of density 失效
    Vorrichtung und Verfahren zur Dichtebestimmung mit Ultraschall。

    公开(公告)号:EP0364168A2

    公开(公告)日:1990-04-18

    申请号:EP89310231.9

    申请日:1989-10-05

    IPC分类号: G01N29/02

    摘要: A method and system are disclosed for determining the density of a liquid, such as aircraft fuel (18), by measuring the amplitude of the reflections of ultrasonic pulses from the faces of the walls (21 and 21′) of a reference material (20). A transducer (14) transmits an ultrasonic interrogation pulse through the liquid to the reference material (20). The density of the reference material (20) is known and its boundaries are well defined. The interrogation pulse is reflected from the faces of the reference material boundaries to provide first, second and third return pulses which are used to determine the density of the liquid (18). The density determination is accomplished by determining characteristic impedances, reflection coefficients and transmission coefficients as a function of the returned pulse amplitudes.

    摘要翻译: 公开了一种用于通过从参考材料(20)的壁(21和21分钟)的表面测量超声波脉冲的反射的幅度来确定诸如飞行器燃料(18)的液体的密度的方法和系统 )。 换能器(14)将超声波询问脉冲通过液体传送到参考材料(20)。 参考材料(20)的密度是已知的,其边界是明确的。 询问脉冲从参考材料边界的表面反射,以提供用于确定液体(18)的密度的第一,第二和第三返回脉冲。 通过确定作为返回的脉冲幅度的函数的特征阻抗,反射系数和透射系数来实现密度确定。

    Multiple optic sensor system
    4.
    发明公开
    Multiple optic sensor system 失效
    多个光学传感器系统。

    公开(公告)号:EP0657719A3

    公开(公告)日:1996-08-28

    申请号:EP94309027.4

    申请日:1994-12-05

    IPC分类号: G01D5/26

    CPC分类号: G01D5/268 G01R15/247

    摘要: An optic sensor system comprising an optic sensor (10), a pair of photoelectric devices (12,14) and a pair of optic fibers (16,18) that transmit light respectively between the photoelectric devices (12,14) and the sensor (10). The photoelectric devices (12,14) serve as both a source of input light for the sensor (10) as well as a light detector for the light returned from the sensor (10). A control circuit is used to switch the photoelectric devices (12,14) on and off, thus determining the periods of time that each operates as a source or detector.

    Optical liquid level sensor and discriminator
    5.
    发明公开
    Optical liquid level sensor and discriminator 失效
    OptischerFlüssigkeitspiegelfühlerund Diskriminator。

    公开(公告)号:EP0658749A2

    公开(公告)日:1995-06-21

    申请号:EP94309396.3

    申请日:1994-12-15

    IPC分类号: G01F23/292

    摘要: A liquid sensing apparatus for a fuel tank comprises optical sensors (12',62) contained in a housing (70), each sensor including a light source (24',66) such as an LED, and a light detector (26',68) such as a phototransistor. A prism (28',64) is optically coupled to each of the sensors (12',62). The prisms (28',64) being of different dimensions relative to each other. The light emitted by the light sources (24',66) will be refracted and returned to the light detectors (26',68). The amount of light refracted and hence detected by each of the detectors (26',68) will depend on the type and level of liquid in the tank and the output of the detectors (26',68) affected accordingly. The shapes and dimensions of the two prisms (28',64) are different, so that the first sensor (12') provides different outputs depending on whether it is exposed to (a) air or (b) fuel and the second sensor (62) produces different outputs depending on whether it is exposed to (a) air or water or (b) fuel. The outputs of the two sensors (12',62) are connected to a sensor circuit by a simple two wire connection. The circuit can provide a signal to indicate the type and the relative amount of each fluid in the tank.

    摘要翻译: 一种用于燃料箱的液体检测装置包括容纳在壳体(70)中的光学传感器(12',62),每个传感器包括诸如LED的光源(24',66)和光检测器(26' 68),例如光电晶体管。 棱镜(28',64)光耦合到每个传感器(12',62)。 棱镜(28',64)相对于彼此具有不同的尺寸。 由光源(24',66)发射的光将被折射并返回到光检测器(26',68)。 由每个检测器(26',68)折射并因此检测到的光量将取决于罐中的液体的类型和水平以及相应地影响的检测器(26',68)的输出。 两个棱镜(28',64)的形状和尺寸是不同的,使得第一传感器(12')根据是否暴露于(a)空气或(b)燃料和第二传感器( 62)根据是否暴露于(a)空气或水或(b)燃料产生不同的输出。 两个传感器(12',62)的输出通过简单的两线连接连接到传感器电路。 该电路可以提供一个信号来指示罐中每种流体的类型和相对量。

    Optical liquid level sensor and discriminator
    10.
    发明公开
    Optical liquid level sensor and discriminator 失效
    光学液位传感器和鉴别器。

    公开(公告)号:EP0658749A3

    公开(公告)日:1996-07-03

    申请号:EP94309396.3

    申请日:1994-12-15

    IPC分类号: G01F23/292

    摘要: A liquid sensing apparatus for a fuel tank comprises optical sensors (12',62) contained in a housing (70), each sensor including a light source (24',66) such as an LED, and a light detector (26',68) such as a phototransistor. A prism (28',64) is optically coupled to each of the sensors (12',62). The prisms (28',64) being of different dimensions relative to each other. The light emitted by the light sources (24',66) will be refracted and returned to the light detectors (26',68). The amount of light refracted and hence detected by each of the detectors (26',68) will depend on the type and level of liquid in the tank and the output of the detectors (26',68) affected accordingly. The shapes and dimensions of the two prisms (28',64) are different, so that the first sensor (12') provides different outputs depending on whether it is exposed to (a) air or (b) fuel and the second sensor (62) produces different outputs depending on whether it is exposed to (a) air or water or (b) fuel. The outputs of the two sensors (12',62) are connected to a sensor circuit by a simple two wire connection. The circuit can provide a signal to indicate the type and the relative amount of each fluid in the tank.