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Sensing antenna, tension measuring device and load measuring system

A technology of measuring device and transmission device, which is applied in the direction of hydraulic/pneumatic force measurement, etc., can solve the problems of inaccurate measurement results and increased installation complexity, and achieve the effects of improving accuracy, deformation reversibility and durability

Inactive Publication Date: 2014-04-02
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that this measurement method will increase the installation complexity, and because the load pressure passes through the intermediate transmission link, the measurement result is not accurate enough

Method used

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  • Sensing antenna, tension measuring device and load measuring system
  • Sensing antenna, tension measuring device and load measuring system
  • Sensing antenna, tension measuring device and load measuring system

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Embodiment Construction

[0034] In the embodiment of the present invention, in order to reduce the need to convert the force on the moving object or rotating object to the mechanical support structure on the load measuring unit in the prior art, so that the tension measuring device can be directly applied to the moving object or rotating object, consider A wireless connection is adopted between the sensing unit and the calculation unit of the tension measuring device. For this reason, the inventor of the present application overcomes inertial thinking after creative work, and considers using radio frequency identification (RFID) technology in the field of wireless communication to measure the load. Radio frequency identification, also known as electronic tags, radio frequency identification, can identify specific targets and read and write related data through radio signals without requiring mechanical or optical contact between the identification system and specific targets. Commonly used radio freque...

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Abstract

The invention discloses a sensing antenna which comprises an elastic material body with a sealed channel, and normal temperature liquid metal inside the sealed channel, wherein the elastic material body is arranged on an object to be measured; when being subjected to tension action, the sealed channel inside the elastic material body has corresponding deformation along with the deformation of the object to be measured; the liquid metal can flow inside the sealed, so that the resonant frequency of the sensing antenna corresponds to the deformation of the sealed channel. In addition, the invention further discloses a tension measuring device and a load measuring system with the antenna. According to the technical scheme of the invention, the antenna can be applied to moving objects or rotating objects.

Description

Technical field [0001] The invention relates to the field of tension measurement, in particular to a load measurement system of a sensing antenna, a tension measurement device and a transmission system. Background technique [0002] Tension measuring device is a device used to measure the tension of an object, specifically it can be used for pressure measurement, load measurement, biological measurement and structural performance monitoring. Generally, the tension measuring instrument includes a sensing element and a measuring element, and the sensing element and the calculating element are connected by a metal wire. The sensing element can be a metal foil on an insulating elastic material. When in use, the elastic material with the metal foil is pasted on the surface of the object. When the object is deformed, the metal foil is driven to deform, thereby causing the resistance of the metal foil to change , The measuring element calculates the deformation of the object by measuri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/02
Inventor 张奇然杜昭辉
Owner SIEMENS AG
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