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Receiving device for determining foreign parts

A sensor device, foreign object technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as measurement results errors, achieve simple and reliable installation, prevent insulation from being damaged, stray current and its electromagnetic interference field Good effect

Active Publication Date: 2010-03-24
MESUTRONIC GERATEBAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, the non-metallic pipe section and the shielding casing surrounding the coil are electrically insulated from the metal conveying pipe on which the pipe for conveying the material is conveyed, in order to cut off as far as possible so-called stray currents, which could falsify the measurement results

Method used

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  • Receiving device for determining foreign parts
  • Receiving device for determining foreign parts

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Embodiment Construction

[0009] exist figure 1 A device of the type in question rearranged according to the invention is schematically shown in . The device is a monitoring and separation section of a pneumatic tube conveying system for, for example, granular or fibrous conveying material, wherein the conveying material enters the device via the conveying pipe or conveying pipe 1 according to the suction or pressure method (Druckverfahren) , through the equipment and exit via the metal transfer pipe or delivery pipe 2. A pipe flange connection 1 ′ is connected to the delivery pipe 1 , which pipe flange connection is detachably connected to another metal pipe flange 3 . The pipe flange 3 has a planar flat contact surface at its end remote from the flange connection 1 ′. Such as figure 2 As shown in the lower area with respect to the pipe flange 3, the pipe flange is firmly fixed to the adjacent metal end plate of the shielding shell by a threaded connection, and a thin insulating layer 9 is placed ...

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Abstract

The invention relates to a receiving device of an electromagnetically operating unit for determining foreign fractions in the material flow of a tubular delivery system, wherein a non-metal tube section (8) is surrounded by spools (5, 6, 5') in the delivery path (1, 3) of the tubular delivery system, wherein said spools are used to detect the field changes caused by foreign fractions in the delivery product flow and feed them to an evaluation circuit (7), and wherein furthermore said non-metal tube section (8) is enclosed by a metal shield housing (4), which transitions into the continuing metal transport tubes (3, 3') of the tubular delivery system, and wherein furthermore the shield housing (4) surrounding the non-metal tube section (8) and the spools (5, 6, 5') can be electrically insulated against the continuing metal transport tubes (3, 3') for the delivery product. Metal tube flanges (10), having a planar contact surface against the shield housing, are attached in an electrically insulating manner to both end plates (4') of the shield housing (4) enclosing the spools, with the interposition of an intermediate layer of a thin insulating material (9), and the thereby insulatedshield housing (4) is connected to the ground point of the evaluation circuit (7) in an electrically conductive manner.

Description

technical field [0001] The invention relates to a sensor device of an electromagnetically operated device for detecting foreign objects in a material flow of a tubular conveying system. Background technique [0002] Devices of this type are known, for example, as metal detectors used in the textile industry. In this case, the device is primarily used to detect metal particles which interfere with the production process and which can be released, for example, by the metal brushes of the machine. It is also used in the food processing industry for similar reasons. Since these detectors respond to changes in the electromagnetic field, and such changes can also occur in non-metallic substances, they can also be used to detect such substances. A particularly advantageous embodiment is described in German patent document 198 30 584, where the relevant prior art is also given in detail. The invention proceeds from such an embodiment, characterized in that the non-metallic pipe s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/72G01V3/10B65G53/66
CPCG01V3/104G01N27/72B65G53/66
Inventor 曼费雷德·阿廷格尔约翰·施马尔茨鲍尔
Owner MESUTRONIC GERATEBAU
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