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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。
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公开(公告)号：EP0690293A3
公开(公告)日：1996-10-23
申请号：EP95304556.4
申请日：1995-06-28
发明人： Crowne, David Henry , Maurice, Lisa Brackenbury , Lichtenfels II, Frederick Lloyd , Freeman, Kip Joseph
IPC分类号： G01F23/72
CPC分类号： G01F23/0061 , G01F23/04 , G01F23/2963 , G01F23/72 , G01F23/74 , Y10S250/904
摘要： Fluid level sensing apparatus for detecting the fluid level in a container. The apparatus comprises a housing adapted to be disposed in the container; a float with an associated magnetic element, where the position of the float in the container corresponds to the fluid level in the container. A magnetostrictive sensor (12) and a stick gauge are also disposed inside the housing. The sensor (12) is coupled to a control circuit (40) which includes a circuit (44) that receives electromagnetic energy (32) from a remote unit (34). In addition, the control circuit (40) includes a circuit for detecting a signal from the sensor (50) and a circuit (54) for emitting electromagnetic energy (36) having a characteristic that is variable and dependent on the fluid level in the container to a remote location (34). The information received at the remote location (34) may be displayed on a screen (38) or at another suitable operator interface (64).
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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.
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公开(公告)号：EP0690293A2
公开(公告)日：1996-01-03
申请号：EP95304556.4
申请日：1995-06-28
发明人： Crowne, David Henry , Maurice, Lisa Brackenbury , Lichtenfels II, Frederick Lloyd , Freeman, Kip Joseph
IPC分类号： G01F23/72
CPC分类号： G01F23/0061 , G01F23/04 , G01F23/2963 , G01F23/72 , G01F23/74 , Y10S250/904
摘要： Fluid level sensing apparatus for detecting the fluid level in a container. The apparatus comprises a housing adapted to be disposed in the container; a float with an associated magnetic element, where the position of the float in the container corresponds to the fluid level in the container. A magnetostrictive sensor (12) and a stick gauge are also disposed inside the housing. The sensor (12) is coupled to a control circuit (40) which includes a circuit (44) that receives electromagnetic energy (32) from a remote unit (34). In addition, the control circuit (40) includes a circuit for detecting a signal from the sensor (50) and a circuit (54) for emitting electromagnetic energy (36) having a characteristic that is variable and dependent on the fluid level in the container to a remote location (34). The information received at the remote location (34) may be displayed on a screen (38) or at another suitable operator interface (64).
摘要翻译： 用于检测容器中液位的液位检测装置。 该设备包括适于设置在容器中的壳体; 具有相关磁性元件的浮子，其中浮子在容器中的位置对应于容器中的液位。 磁致伸缩传感器（12）和棒规也设置在壳体内部。 传感器（12）耦合到控制电路（40），该控制电路包括从远程单元（34）接收电磁能（32）的电路（44）。 此外，控制电路（40）包括用于检测来自传感器（50）的信号的电路和用于发射具有可变且取决于容器中的液位的特性的电磁能量（36）的电路（54） 到远程位置（34）。 在远程位置（34）处接收到的信息可以显示在屏幕（38）上或另一合适的操作员界面（64）上。
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公开(公告)号：EP0690293A9
公开(公告)日：2002-03-13
申请号：EP95304556.4
申请日：1995-06-28
发明人： Crowne, David Henry , Maurice, Lisa Brackenbury , Lichtenfels II, Frederick Lloyd , Freeman, Kip Joseph
IPC分类号： G01F23/72 , G01F23/296 , G01F23/00 , G01F23/04
摘要： Fluid level sensing apparatus for detecting the fluid level in a container. The apparatus comprises a housing adapted to be disposed in the container; a float with an associated magnetic element, where the position of the float in the container corresponds to the fluid level in the container. A magnetostrictive sensor (12) and a stick gauge are also disposed inside the housing. The sensor (12) is coupled to a control circuit (40) which includes a circuit (44) that receives electromagnetic energy (32) from a remote unit (34). In addition, the control circuit (40) includes a circuit for detecting a signal from the sensor (50) and a circuit (54) for emitting electromagnetic energy (36) having a characteristic that is variable and dependent on the fluid level in the container to a remote location (34). The information received at the remote location (34) may be displayed on a screen (38) or at another suitable operator interface (64).
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公开(公告)号：EP0657719B1
公开(公告)日：1999-09-01
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
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