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1. 发明申请

WO2012089635A3 ELECTROMECHANICAL FILL LEVEL MEASUREMENT UNIT 审中-公开
标题翻译：机电式液位计
公开(公告)号：WO2012089635A3
公开(公告)日：2012-08-23
申请号：PCT/EP2011073879
申请日：2011-12-22
申请人： ENDRESS & HAUSER GMBH & CO KG , BRUTSCHIN WOLFGANG , KAISER ANDREAS , SAWITZKI CARMEN , OKAZAKI KEITA
发明人： BRUTSCHIN WOLFGANG , KAISER ANDREAS , SAWITZKI CARMEN , OKAZAKI KEITA
IPC分类号： G01F23/00 , G01F23/44 , G01F23/46
CPC分类号： G01F23/44 , G01F23/0038 , G01F23/46
摘要： The invention encompasses an electromechanical fill level measurement unit, comprising a float or displacement element which is connected by means of a wire at least to an outer drum such that the wire can be unwound, an outer drum with an outer magnet ring, an inner drum with an inner magnet ring, and electromagnetic measurement elements which determine magnetic field displacement between the inner and outer magnet rings and output a measurement value, a measurement shaft to which the inner drum is mechanically fixedly connected; a servo motor is provided which has a drive shaft which is coupled via a gearing to the measurement shaft, which servo motor imparts a follow-up movement to the measurement shaft as a function of a control signal determined from the differential value of the measurement elements, such that, as a result of the relative movement between the outer and inner drum generated by a change in the liquid level to be measured, the differential value is returned to zero and, from a follow-up movement, the present fill level measurement value is determined. The invention provides that sensor electronics are arranged on the measurement shaft within the inner drum, and that a radial rotary transformer is formed on the measurement shaft, which rotary transformer transmits at least the control signals from the sensor electronics to the main electronics and supplies at least the sensor electronics with the required energy.
摘要翻译：本发明包括一种电 - 机械液位计，其包括一个浮动或置换，这是退绕通过电线的装置至少连接有外筒，其具有外磁环的外鼓，具有内磁环和电磁测量元件，内部之间的磁场位移的内筒确定和外磁环和一个测量值输出，一个测量轴，所述内滚筒机械地牢固地连接到，它是具有被耦合到通过传输所述测量轴的驱动轴的伺服马达，条件是响应于从所述测量轴跟踪测量元件确定的控制信号的差值，使得由于由差值的测量液位的变化产生的外鼓和内鼓之间的相对运动回到零，并且由于跟踪ak 实际水平读数是确定的。本发明提供了在所述内滚筒内的测量轴传感器电子器件被布置，以及一个径向旋转变压器被布置在所述测量轴，其在从所述传感器电子器件到主电子至少传送控制信号，并且至少与所述必需的能量供给所述传感器电子器件。

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