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Electromechanical fill level measurement unit

A technology of material level measurement and electromagnetic measurement, which is applied in the direction of measuring device, lubrication indicator device, liquid/fluid solid measurement, etc., and can solve problems such as inaccurate measurement

Active Publication Date: 2013-10-30
EHNDRESS KHAUZER GMBKH KO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mechanical output has the disadvantage that it cannot be performed in a wear-free manner and frictional resistance produces torque variations so that measurement inaccuracies can occur

Method used

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  • Electromechanical fill level measurement unit
  • Electromechanical fill level measurement unit
  • Electromechanical fill level measurement unit

Examples

Experimental program
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Embodiment Construction

[0029] figure 1 A mechanical level measuring device 1 is shown, for example, the assignee's tank measuring system PROSERVO NMS53x tank level gauge and is based on the principle of displacement measurement with a small displacement element 11, a small displacement The element 11 is suspended on the measuring line 19 and is connected to the servo motor 3 ( figure 2 ) is precisely located in the liquid 14 in the container 15 with the assistance of . As soon as the fill level 16 of the liquid 14 in the container 15 rises or falls, the position of the displacement element 11 is adjusted by the servomotor 3 by rotating the measuring shaft 10 with the measuring rollers 12 , 13 . The rotation of the measuring drums 12 , 13 is evaluated to determine the filling level 16 . Furthermore, further measurement variables such as density measurements of individual layers of filling substance 14 and determination of separation layers can be carried out using this measurement principle.

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Abstract

An electromechanical, fill-level, measuring device, comprising: a float, an outer drum with an outer ring of magnets, an inner drum with an inner ring of magnets, electromagnetic measuring elements, a measuring shaft with, and a servomotor with an drive shaft. The drive shaft is coupled with the measuring shaft via a transmission, wherein the servomotor rotates the measuring shaft via the transmission as a function of a control signal ascertained from the difference value of the measuring elements, so that, by relative movement between the outer and inner drums produced by a change of the liquid level to be measured, the difference value is returned to zero and from the rotation of the measuring shaft the current fill level measured value is ascertained. Sensor electronics is arranged on the measuring shaft within the inner drum, and radial, rotary transformer is embodied on the measuring shaft for transmitting at least the control signals from the sensor electronics to the main electronics and supplying for at least the sensor electronics with energy.

Description

technical field [0001] The present invention relates to an electromechanical material level measuring device, comprising: a floating body or a displacement element, which is suspended by means of a wire and floats on a liquid to be measured horizontally; an outer drum, the an outer drum with an outer ring of magnets; an inner drum with an inner ring of magnets and an electromagnetic measuring element that determines the displacement of the magnetic field between the inner ring and the outer ring of magnets and outputs a measured value; the measurement shaft, the inner drum is mechanically fixedly connected to the measuring shaft; wherein a servo motor with a drive shaft is provided, wherein the drive shaft is coupled to the measuring shaft via a transmission, wherein the servo motor is A control signal determined by the difference of the measuring elements rotates the measuring shaft via the transmission, so that the The difference returns to zero and the current level measur...

Claims

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Application Information

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IPC IPC(8): G01F23/00G01F23/44G01F23/46
CPCG01F23/44G01F23/0038G01F23/46
Inventor 沃尔夫冈·布鲁钦安德烈亚斯·凯泽卡门·萨维茨基冈崎庆太
Owner EHNDRESS KHAUZER GMBKH KO KG
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