Flow rate sensor based on sheet IPMC material

Abstract

The invention discloses a flow rate sensor based on a sheet IPMC material. The flow rate sensor comprises a substrate, sheet IPMCs, short shells, outer frames, extraction electrodes, extraction leads,signal conditioning circuits, a flow rate signal synthesis processing module and an LED display, wherein the substrate is of a cuboid structure, and a pair of grooves are formed in the bottom surfaceof the substrate and two adjacent side surfaces of the substrate respectively; each pair of grooves is in butt joint with a pair of short shells correspondingly, each pair of short shells are fixedlysleeved through the outer frames, and sheet IPMCs are respectively arranged between each pair of short shells; one end of the sheet IPMC arranged between the short shells is a fixed end, the other end of the sheet IPMC is a free end, and one extraction electrode is arranged between two sides of the fixed end of each sheet IPMC and the short shells respectively; the extraction leads are connectedwith the extraction electrodes; and the flow rate signal synthesis processing module is connected with each signal conditioning circuit.

Description

technical field [0001] The invention belongs to the field of applications of ion-polymer metal composite materials and sensor technology, and in particular relates to a novel flow rate sensor based on IPMC (Ion-exchange polymer metal composite, ion-polymer metal composite materials). Background technique [0002] The structure of the IPMC material is similar to a "sandwich" form, in which there is an ion exchange membrane in the middle, which contains metal cations and solvent molecules, and a layer of metal electrodes is attached to the two outer surfaces of the ion exchange membrane. [0003] When a certain voltage value is applied to the two metal electrodes of the IPMC material, the metal cations inside the ion-exchange membrane in the middle of the IPMC material will move to the cathode side with the solvent molecules, causing the cathode side to expand and the anode to shrink, thereby It will cause the IPMC material to deviate from the axial direction to produce a cert...

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Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies in the prior art, utilize the sensing ability of IPMC material itself and its dependence on water environment or humid environment, provide a kind of flow velocity sensor based on sheet IPMC, can measure effectively including The current information of seawater flow velocity and flow direction is to solve the problem that the existing flow velocity sensors are difficult to meet the measurement requirements of small, three-dimensional, long-term, intelligent, high pressure, and instantaneous velocity measurement. of great significance

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