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A multimodal sensor

A multi-mode sensor and sensor technology, applied in the field of sensors, to achieve the effect of speeding up the design cycle, reducing test costs, and optimizing the design

Active Publication Date: 2020-06-05
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there have been published researches on the integration of electrical resistance tomography and electrical capacitance tomography, but how to judge the conductivity of the current measured fluid and choose electrical capacitance tomography or electrical resistance tomography has always been an unsolved problem. solved problem

Method used

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only for illustration and are not intended to limit the present invention.

[0034] Such as figure 1 As shown, the multimodal sensor according to the present invention includes: an insulating support tube 3 inside the measured field, including adjacent first and second sections along its longitudinal axis; a resistor / capacitor arranged on the first section a tomographic imaging sensor 1; and a resonant cavity sensor 2 disposed on the second section.

[0035] Such as figure 2 As shown, the resistance / capacitance tomography sensor 1 includes a plurality of four-port flexible PCB electrodes 10 uniformly distributed along the inner wall circumference of the insulating support tube 3, and a radial shielding metal shell 20 fixed on...

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Abstract

The invention discloses a multi-modal sensor composed of four-port flexible PCB electrodes. The multi-modal sensor comprises an insulated support tube with a measured field inside, and the insulated support tube includes a first cross section and a second cross section which are adjacent to each other along the longitudinal axis of the insulated support tube; a resistance / capacitance tomography sensor arranged at the first cross section, wherein the resistance / capacitance tomography sensor comprises a plurality of four-port flexible PCB electrodes uniformly distributed along the circumferenceof the inner wall of the insulated support tube, and a radial shielding metal shell fixed to the outer wall of the insulated supporting tube, wherein the longitudinal axis of each four-port flexiblePCB electrode is parallel to the longitudinal axis of the insulated support tube; and a resonant cavity sensor arranged at the second cross section. According to the multi-modal sensor provided by theinvention, the four-port electrode design is adopted, a resistance tomography sensor and a capacitance tomography sensor are integrated, and the integration is integrated with a resonant cavity to form the multi-modal sensor, so that the multi-phase flow with different conductivity can be measured.

Description

technical field [0001] The invention belongs to the technical field of sensors, and in particular relates to a four-port flexible PCB electrode and a multi-mode sensor composed of it and applied to multi-phase flow detection. Background technique [0002] As an implementation of process tomography technology, electrical tomography technology uses two-phase flow or multiphase flow as the detection object, and mainly uses electrical measurement methods to study the real-time detection technology of process parameter distribution. This technology can reconstruct the internal dielectric constant / conductivity distribution of the container or pipe by measuring the capacitance / electrical impedance value between the electrodes installed on the surface of the unknown container or pipe, so as to quickly and non-destructively obtain the distribution of the medium inside the unknown container . Compared with the traditional tomographic parameter acquisition technology, the main advanta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N22/00G01N27/06G01N27/22
CPCG01N22/00G01N27/06G01N27/22
Inventor 田文斌孙江涛徐立军
Owner BEIHANG UNIV
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