公开(公告)号：US4299126A

公开(公告)日：1981-11-10

申请号：US75670

申请日：1979-09-13

申请人： Erwin Heuwieser ,  Johann Kammermaier ,  Peter Roedl

发明人： Erwin Heuwieser ,  Johann Kammermaier ,  Peter Roedl

IPC分类号： G01F23/24

CPC分类号： G01F23/246

摘要： A device for measuring the fill level in a container at least partially filled with a liquid, particularly for determining the liquid level in a fuel tank, in which a measuring resistor, comprising a metallic resistance layer having a great temperature coefficient of the specific resistance is carried by a carrier foil. The portion of the resistance layer disposed in the liquid remains cold, while that portion above the liquid is at a higher temperature, whereby the difference between the present resistance and that of an empty tank is proportional to the fill level within the tank. The change of resistance preferably is measured in connection with that of a comparator resistor which is not heated and compensates for temperature influence etc. An influence on the measurement due to convection in the fuel tank is prevented by means of covering sheets which are spaced a small distance from the resistors by means of suitable spacing strips.

摘要翻译： 一种用于测量至少部分地充满液体的容器中的填充液位的装置，特别是用于确定燃料箱中的液位，其中包括具有大电阻温度系数的金属电阻层的测量电阻器是 由载体箔携带。 设置在液体中的电阻层的部分保持冷，而液体上方的部分处于较高的温度，由此当前电阻与空罐的电阻之间的差与罐内的填充量成比例。 电阻的变化优选与未加热的比较电阻器的电阻值相对应地进行测量，并且补偿温度影响等。由于通过覆盖片材间隔小的方式防止了由于燃料箱中的对流而对测量的影响 通过合适的间隔条与电阻器的距离。

公开(公告)号：US4320655A

公开(公告)日：1982-03-23

申请号：US143352

申请日：1980-04-24

申请人： Johann Kammermaier ,  Rudiger Mueller ,  Peter Roedl

发明人： Johann Kammermaier ,  Rudiger Mueller ,  Peter Roedl

IPC分类号： G01F1/68 ,  G01F1/684 ,  G01F1/692 ,  G01P5/12

CPC分类号： G01F1/692 ,  G01F1/6842

摘要： A quantity of flow meter, includes two electrical conductors which are traversed by current and are physically traversed by a flowing medium to be measured. The increase of the current required for maintenance of the temperature difference between the two conductors is evaluated as a measurement of the quantity of flow. The meter is particularly versatile and can be employed for a wide voltage range and includes resistors as the electrical conductors which are thin resistor layers applied upon a thin carrier.

摘要翻译： 一定数量的流量计包括两个由电流穿过的电导体，并被被测量的流动介质物理地穿过。 维持两根导体之间的温度差所需的电流的增加被评估为流量的测量值。 该仪表是特别通用的，可用于宽电压范围，并且包括作为施加在薄载体上的薄电阻层的电导体的电阻器。