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1. 发明授权

US07677098B2 Light sensing contactless fuel level sensor 失效
标题翻译：光检测非接触式燃油液位传感器
公开(公告)号：US07677098B2
公开(公告)日：2010-03-16
申请号：US11835826
申请日：2007-08-08
申请人： Robert A. Roth , Steven Aikman
发明人： Robert A. Roth , Steven Aikman
IPC分类号： G01F23/32 , G01F23/00
CPC分类号： G01F23/366
摘要： A contactless, sealed fuel level sensor for determining a fuel level in a fuel tank and producing a level indicative signal includes a frame, a cover, a float arm, a float and a light-responsive sensor. The frame is configured to have a cavity formed therein. The cover is connected to the frame to enclose the cavity. The float arm is coupled to one of the frame or cover. The float is connected to the float arm and configured such that the float moves the float arm as a level of fuel increases and decreases in the fuel tank. The light-responsive sensor is configured to generate a fuel level signal indicative of a fuel level in the fuel tank based on the movement of the float arm. The fuel level sensor may also include a light source such as a light emitting diode (LED). The light-responsive sensor may be a single photoelectric sensor located in the sealed cavity, or an array of photoelectric sensors located in the sealed cavity. The fuel level sensor may also include a rotatable hub connected to the float arm for movement as the arm moves and where rotation of the hub varies an amount of light impinging on the photoelectric sensor. The light responsive sensor may also include a CMOS sensor located in the sealed cavity. The light responsive sensor may also include a digital, optical-based displacement encoder mounted on the float arm used in combination with a rotary scale applied to the cover opposite the encoder.
摘要翻译：用于确定燃料箱中的燃料液位并产生电平指示信号的非接触密封燃料液位传感器包括框架，盖子，浮动臂，浮子和光响应传感器。框架被构造成具有形成在其中的空腔。盖子连接到框架以封闭空腔。浮动臂联接到框架或盖中的一个。浮子连接到浮动臂并且构造成使得当燃料的燃料水平增加并且在燃料箱中减小时，浮子移动浮动臂。光响应传感器被配置为基于浮动臂的运动产生指示燃料箱中的燃料液位的燃料液位信号。燃料液位传感器还可以包括诸如发光二极管（LED）的光源。光响应传感器可以是位于密封空腔中的单个光电传感器，或位于密封空腔中的光电传感器阵列。燃料液位传感器还可以包括连接到浮动臂的可旋转轮毂，用于当臂移动时移动，并且轮毂的旋转改变入射在光电传感器上的光量。光响应传感器还可以包括位于密封腔中的CMOS传感器。光响应传感器还可以包括安装在浮动臂上的数字式的基于光学的位移编码器，与应用于与编码器相对的盖的旋转刻度机组合使用。

2. 发明申请

US20090038395A1 LIGHT SENSING CONTACTLESS FUEL LEVEL SENSOR 失效
标题翻译：轻型感应式燃油液位传感器
公开(公告)号：US20090038395A1
公开(公告)日：2009-02-12
申请号：US11835826
申请日：2007-08-08
申请人： Robert A. Roth , Steven Aikman
发明人： Robert A. Roth , Steven Aikman
IPC分类号： G01F23/30
CPC分类号： G01F23/366
摘要： A contactless, sealed fuel level sensor for determining a fuel level in a fuel tank and producing a level indicative signal includes a frame, a cover, a float arm, a float and a light-responsive sensor. The frame is configured to have a cavity formed therein. The cover is connected to the frame to enclose the cavity. The float arm is coupled to one of the frame or cover. The float is connected to the float arm and configured such that the float moves the float arm as a level of fuel increases and decreases in the fuel tank. The light-responsive sensor is configured to generate a fuel level signal indicative of a fuel level in the fuel tank based on the movement of the float arm. The fuel level sensor may also include a light source such as a light emitting diode (LED). The light-responsive sensor may be a single photoelectric sensor located in the sealed cavity, or an array of photoelectric sensors located in the sealed cavity. The fuel level sensor may also include a rotatable hub connected to the float arm for movement as the arm moves and where rotation of the hub varies an amount of light impinging on the photoelectric sensor. The light responsive sensor may also include a CMOS sensor located in the sealed cavity. The light responsive sensor may also include a digital, optical-based displacement encoder mounted on the float arm used in combination with a rotary scale applied to the cover opposite the encoder.
摘要翻译：用于确定燃料箱中的燃料液位并产生电平指示信号的非接触密封燃料液位传感器包括框架，盖子，浮动臂，浮子和光响应传感器。框架被构造成具有形成在其中的空腔。盖子连接到框架以封闭空腔。浮动臂联接到框架或盖中的一个。浮子连接到浮动臂并且构造成使得当燃料的燃料水平增加并且在燃料箱中减小时，浮子移动浮动臂。光响应传感器被配置为基于浮动臂的运动产生指示燃料箱中的燃料液位的燃料液位信号。燃料液位传感器还可以包括诸如发光二极管（LED）的光源。光响应传感器可以是位于密封空腔中的单个光电传感器，或位于密封空腔中的光电传感器阵列。燃料液位传感器还可以包括连接到浮动臂的可旋转轮毂，用于当臂移动时移动，并且轮毂的旋转改变入射在光电传感器上的光量。光响应传感器还可以包括位于密封腔中的CMOS传感器。光响应传感器还可以包括安装在浮动臂上的数字式的基于光学的位移编码器，与应用于与编码器相对的盖的旋转刻度相结合使用。

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