CN113504276A - Electrochemical sensor and method of assembling the same - Google Patents
Electrochemical sensor and method of assembling the same Download PDFInfo
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- CN113504276A CN113504276A CN202110912246.6A CN202110912246A CN113504276A CN 113504276 A CN113504276 A CN 113504276A CN 202110912246 A CN202110912246 A CN 202110912246A CN 113504276 A CN113504276 A CN 113504276A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 54
- 238000005452 bending Methods 0.000 claims abstract description 28
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000003292 glue Substances 0.000 claims abstract description 5
- 239000012528 membrane Substances 0.000 claims description 21
- 238000005213 imbibition Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 19
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 16
- 238000002955 isolation Methods 0.000 description 15
- 239000002250 absorbent Substances 0.000 description 9
- 239000003792 electrolyte Substances 0.000 description 7
- 229910052697 platinum Inorganic materials 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000013067 intermediate product Substances 0.000 description 4
- 229920006335 epoxy glue Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- -1 Polytetrafluoroethylene Polymers 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
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Abstract
The present application relates to an electrochemical sensor and an assembling method thereof, the assembling method of the electrochemical sensor of the present application includes: installing an electrode assembly including at least a plurality of wire electrodes into the first installation hole of the installation cover; placing the fixing net sheet into the first mounting hole and pressing the fixing net sheet on the electrode assembly; combining and fixing the fixed net sheet and the mounting cover; bending the electrode wire to form an electrode wire bending section; mounting and fixing the mounting shell and the mounting cover provided with the fixed net piece and the electrode assembly; sealing glue treatment is carried out on the second reserved hole; and connecting the electrode wire bending section with a circuit board. Therefore, one end of the straight and unbent wire electrode is clamped between the fixed mesh and the mounting cover, the plurality of wire electrodes are fixed at the designated positions in the electrode assembly, and then the plurality of wire electrodes can be bent by taking the electrode assembly or the fixed mesh as a standard, so that the assembly precision of the electrochemical sensor is improved.
Description
Technical Field
The application relates to the technical field of sensors, in particular to an electrochemical sensor and an assembling method thereof.
Background
The assembly method of the electrochemical sensor in the prior art is as follows: the manufacturing method comprises the steps of fixing one ends of a plurality of platinum wires on a circuit board on the bottom surface of a shell, sequentially placing a mesh, electrode assemblies such as a plurality of electrode films and the like in the shell, bending the platinum wires in a grading manner, combining the platinum wires with the electrode films, and fixing an upper cover on the shell.
By adopting the method, the platinum wires need to be bent to different positions of the electrode assembly, so the bending parts of the platinum wires are different in height, the platinum wires are manually bent for multiple times, the platinum wire mounting error is large, the assembly precision is not high, the electrochemical sensor can only be assembled manually, the automation degree is not high, and the electrochemical sensor is not suitable for mass production.
In addition, in the prior art, when the upper cover is fixed on the shell, due to the size of parts, the density inconsistency of materials, the fluctuation of connection energy and the installation error of the platinum wire, the assembly error range of the manufactured electrochemical sensor in the height direction (vertical direction) can reach +/-0.15 mm to the maximum extent, so that the pressing force of each part in the electrode assembly is inconsistent, and the difference of output electric signals of different electrochemical sensors is large.
Disclosure of Invention
An object of the present application is to provide an electrochemical sensor and an assembling method thereof, which can improve assembling accuracy of the electrochemical sensor.
In order to achieve the above object, the embodiments of the present application are implemented as follows:
in a first aspect, the present application provides a method of assembling an electrochemical sensor, comprising:
installing an electrode assembly including at least a plurality of wire electrodes into the first installation hole of the installation cover; the inner side wall of the first mounting hole is provided with a first preformed hole, one part of the wire electrode is arranged in the first mounting hole, and the other part of the wire electrode penetrates through the first preformed hole to extend out of the first mounting hole;
placing a fixing mesh into the first mounting hole and pressing the fixing mesh on the electrode assembly;
combining and fixing the fixed mesh and the mounting cover;
bending the electrode wire to form an electrode wire bending section;
mounting and fixing a mounting shell and a mounting cover provided with the fixing net piece and the electrode assembly; the mounting shell is provided with a second preformed hole, the mounting shell is provided with a circuit board, the circuit board is provided with a third preformed hole, and the wire electrode bending section penetrates through the second preformed hole and the third preformed hole;
sealing glue treatment is carried out on the second preformed hole;
and connecting the electrode wire bending section with the circuit board.
In one embodiment, the electrode assembly further comprises: the liquid absorbing paper comprises a plurality of electrode films, a plurality of isolating films and at least one liquid absorbing paper, wherein the isolating films comprise a first isolating film and a second isolating film; an electrode film and a wire electrode are combined to form an electrode module; wherein a plurality of the electrode modules comprise a working electrode, a counter electrode, and a reference electrode.
In one embodiment, the installing the electrode assembly including at least a plurality of electrode wires into the first installing hole of the installing cover includes:
placing the working electrode on the inner surface of the first mounting hole, and enabling an electrode film in the working electrode and the mounting cover to be fixed in a hot melting mode;
placing the first isolating membrane in the first mounting hole and pressing the first isolating membrane on the working electrode;
placing the reference electrode in the first mounting hole and pressing the reference electrode on the first isolating membrane;
placing the second isolating membrane in the first mounting hole and pressing the second isolating membrane on the reference electrode;
placing the counter electrode in the first mounting hole and pressing the counter electrode on the second isolating film;
and placing the liquid absorption paper in the first mounting hole and pressing the liquid absorption paper on the counter electrode.
In one embodiment, the placing the fixing mesh into the first mounting hole and pressing the fixing mesh onto the electrode assembly includes:
placing a fixed net sheet into the first mounting hole and pressing the fixed net sheet on the liquid absorption paper;
and clamping the liquid absorption paper in the fixed mesh and the counter electrode, wherein part of the liquid absorption paper penetrates through meshes of the fixed mesh and extends out of the first mounting hole.
In one embodiment, the fixing mesh and the mounting cover are fixed in combination, and the fixing mesh includes:
the fixing holes on the fixing net piece are matched with the fixing convex columns on the inner surfaces of the first mounting holes;
enabling the fixed net sheet to abut against the first step of the fixed convex column;
and carrying out hot melting treatment on the fixed mesh and the fixed convex columns so as to combine and fix the fixed mesh and the mounting cover.
In one embodiment, the fixing the mounting case and the mounting cover with the fixing mesh and the electrode assembly mounted thereon includes:
covering the installation cover provided with the fixed net piece and the electrode assembly on the installation shell, and embedding the installation shell in an installation groove of the installation cover so as to shield the first reserved hole;
and welding and sealing the mounting shell and the mounting cover.
In one embodiment, the assembling method of the electrochemical sensor further includes:
installing a filter element into the second mounting hole of the mounting cover;
an auxiliary cover is arranged in the second mounting hole and is pressed in the filter piece;
and loading the dustproof film into the second mounting hole and pressing the dustproof film on the auxiliary cover.
In one embodiment, before the mounting cover with the fixing mesh and the electrode assembly mounted thereon is mounted and fixed on the mounting case, the method further includes:
and mounting the circuit board on the mounting shell.
In a second aspect, the present application provides an electrochemical sensor comprising: the mounting cover is provided with a first vent hole and a first mounting hole which are communicated, and the inner side wall of the first mounting hole is provided with at least one first preformed hole; the fixed net piece is arranged in the first mounting hole and is fixedly connected with the mounting cover; the electrode assembly is arranged in the first mounting hole and clamped between the fixed net piece and the inner bottom surface of the first mounting hole, and the electrode assembly at least comprises a plurality of electrode wires; the mounting shell is hermetically connected with the mounting cover, and at least one second preformed hole is formed in the mounting shell; the circuit board is connected with the mounting shell and is provided with at least one third preformed hole; the electrode wire is provided with an electrode wire straight section and an electrode wire bending section, the electrode wire straight section is arranged in the first mounting hole and clamped between the fixed net piece and the mounting cover, the electrode wire bending section penetrates through the second preformed hole and the third preformed hole and is connected with the circuit board, and a sealing piece is arranged in the second preformed hole.
In an embodiment, an installation groove communicated with the first preformed hole is formed in the outer side wall of the installation cover, and the installation shell is embedded in the installation groove to shield the first preformed hole.
In one embodiment, the fixing mesh is provided with at least one fixing hole, and the inner surface of the first mounting hole is convexly provided with at least one fixing convex column matched with the fixing hole; the fixed convex column is provided with at least one first step which can be abutted against the fixed net sheet so as to limit the movement of the fixed net sheet.
In an embodiment, the fixing mesh is provided with at least one fourth preformed hole, and the wire electrode bending section is arranged in the fourth preformed hole in a penetrating manner.
In an embodiment, the installation shell is provided with a notch penetrating through the side wall of the installation shell, the inner wall of the installation shell is provided with an L-shaped connecting plate at the notch, the L-shaped connecting plate and the inner wall of the installation shell form a second step, and the second preformed hole is formed in the second step.
In an embodiment, the axes of the fourth preformed hole, the second preformed hole and the third preformed hole are located on the same plane.
In one embodiment, the circuit board is fixed to a side of the mounting case away from the mounting cover.
In an embodiment, a second mounting hole is opened on a surface of the mounting cover facing away from the first mounting hole, the second mounting hole communicates with the first mounting hole through a first vent hole, and the electrochemical sensor further includes: filter piece, supplementary lid and dust-proof membrane, it locates to filter the piece in the second mounting hole, supplementary lid is located in the second mounting hole, and press and locate filter the piece, the dust-proof membrane is also located in the second mounting hole, and press and locate supplementary lid.
In one embodiment, the electrode assembly further comprises: the liquid absorbing device comprises a plurality of electrode films, a plurality of isolating films and at least one liquid absorbing paper, wherein one electrode film and one wire electrode are combined to form an electrode module; the electrode modules comprise a working electrode, a counter electrode and a reference electrode, and an electrode film of the working electrode is connected with the mounting cover; the plurality of isolation membranes include a first isolation membrane and a second isolation membrane, the first isolation membrane is disposed between the working electrode and the reference electrode, and the second isolation membrane is disposed between the reference electrode and the counter electrode; fixed net piece is equipped with at least one mesh, the straight portion of imbibition paper and imbibition paper kink have, the straight portion of imbibition paper presss from both sides and locates fixed net piece with in the counter electrode, imbibition paper kink passes the mesh stretches into in the installation shell.
Compared with the prior art, the beneficial effect of this application is:
the assembling method of the electrochemical sensor comprises the following steps: the electrode assembly fixing method comprises the steps of firstly placing an electrode assembly comprising a plurality of electrode wires and the like in an installation cover, then fixing the electrode assembly through the fixed connection of a fixing net piece and the installation cover, then uniformly bending the plurality of electrode wires, and finally connecting the installation shell and the installation cover together. Therefore, one end of the straight and unbent wire electrode is clamped between the fixed mesh and the mounting cover, the plurality of wire electrodes are fixed at the designated positions in the electrode assembly, and then the plurality of wire electrodes can be bent by taking the electrode assembly or the fixed mesh as a standard, so that the assembly precision of the electrochemical sensor is improved.
And the electrochemical sensor of the application not only can be assembled by manpower, but also can be assembled by a machine, and the automation degree is high, so that the electrochemical sensor can be produced in a large scale.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of an electrochemical sensor according to an embodiment of the present disclosure.
Fig. 2 is a bottom view of an electrochemical sensor according to an embodiment of the present application.
Fig. 3 is a sectional view taken along a-a of an electrochemical sensor according to an embodiment of the present application.
Fig. 4 is an exploded view of an electrochemical sensor according to an embodiment of the present application.
Fig. 5 is an exploded view of an electrochemical sensor according to an embodiment of the present application from another perspective.
Fig. 6 is a flow chart illustrating a method of assembling an electrochemical sensor according to an embodiment of the present disclosure.
Icon: 1-an electrochemical sensor; 100-mounting a cover; 110-a first vent; 120-a first mounting hole; 130-fixed convex column; 131-a first step; 140-a first preformed hole; 150-a second mounting hole; 160-mounting grooves; 200-an electrode assembly; 210-wire electrode; 211-flat section of electrode wire; 212-wire electrode bending section; 220-an electrode film; 230-absorbent paper; 231-absorbent paper flat; 232-bending the liquid absorption paper; 240-barrier film; 241-a first barrier film; 242 — a second barrier film; 201-a working electrode; 202-a reference electrode; 203-counter electrode; 300-fixing the mesh sheet; 310-mesh; 320-fixing holes; 330-fourth preformed hole; 400-mounting the housing; 410-a second preformed hole; 420-a notch; 430-L-shaped connecting plate; 440-a second step; 500-a circuit board; 510-a third preformed hole; 520-pin; 600-a filter element; 700-dust-proof film; 800-auxiliary cover; 810-second vent.
Detailed Description
The terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of indicating or implying relative importance, and do not denote any order or order.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.
In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.
The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an electrochemical sensor 1 according to an embodiment of the present disclosure. The electrochemical sensor 1 of the present application includes: installation lid 100, installation shell 400 and circuit board 500, installation shell 400 and installation lid 100 sealing connection, installation shell 400 and installation lid 100 form the cavity of placing electrolyte, and circuit board 500 is fixed in installation shell 400 and deviates from in the one side of installation lid 100, is equipped with a plurality of pins 520 on the circuit board 500. The circuit board 500 and the mounting case 400 may be clamped by a groove, may be fixed by a bolt, and may be fixed by a heat-melting column.
Wherein a direction in which the mounting cover 100 is directed toward the mounting case 400 is defined as downward.
Fig. 2 is a bottom view of the electrochemical sensor 1 according to an embodiment of the present disclosure. Fig. 3 is a sectional view of an electrochemical sensor 1 according to an embodiment of the present application, taken along the direction a-a. The lower surface of the mounting cover 100 is provided with a first mounting hole 120, the mounting cover 100 is provided with a second mounting hole 150 on a surface (the upper surface of the mounting cover 100) away from the first mounting hole 120, the inner bottom surface of the first mounting hole 120 is provided with a first vent hole 110 penetrating through the inner bottom surface of the second mounting hole 150, and the second mounting hole 150 is communicated with the first mounting hole 120 through the first vent hole 110.
The electrochemical sensor 1 further includes: electrode assembly 200, filter piece 600, supplementary lid 800 and dust-proof membrane 700, electrode assembly 200 locates in first mounting hole 120, and filter piece 600, supplementary lid 800 and dust-proof membrane 700 and all locate in second mounting hole 150, and set gradually from bottom to top, and supplementary lid 800 is pressed and is located and filter piece 600 promptly, and dust-proof membrane 700 is pressed and is located supplementary lid 800. The auxiliary cover 800 is provided with a second vent 810.
The dust-proof film 700 may be used to prevent condensation and dust to reduce the influence of temperature variation, dust, dirt, and moisture on the electrochemical sensor 1. The filter 600 may be used to filter out interfering gases. For example: the dustproof film 700 may be a Polytetrafluoroethylene (PTFE) breathable film having waterproof and breathable properties. The filter 600 may be a powdered or cake solid of activated carbon or potassium permanganate filter.
The second mounting hole 150 is a stepped hole, the filter element 600, the auxiliary cover 800 and the dust-proof film 700 are all cylinders, the outer diameter of the filter element 600 is smaller than the outer diameter of the auxiliary cover 800, and the outer diameter of the auxiliary cover 800 is smaller than the outer diameter of the dust-proof film 700. A circular boss may be provided at a central position of the inner bottom surface of the first mounting hole 120 to support the electrode assembly 200.
In an operation, when a target gas to be detected reaches the filter member 600 through the dustproof film 700 and the second vent hole 810 and is filtered, the filtered target gas enters the first mounting hole 120 and the mounting case 400 through the first vent hole 110, and reacts with the target gas by using the electrode assembly 200 in the first mounting hole 120 and the electrolyte in the mounting case 400 to generate an electric signal proportional to the gas concentration, so that the concentration of the target gas can be measured according to the electric signal.
The mounting case 400 is provided with at least one second preformed hole 410; the circuit board 500 is provided with at least one third preformed hole 510 penetrating through the circuit board 500; the electrochemical sensor 1 further includes a fixing mesh 300, the fixing mesh 300 is disposed in the first mounting hole 120, and the fixing mesh 300 is fixedly connected to the mounting cover 100. The electrode assembly 200 is disposed in the first mounting hole 120, and is interposed between the fixing mesh 300 and the mounting cap 100.
The electrode assembly 200 at least includes a plurality of electrode wires 210, the electrode wires 210 may be platinum wires and include a wire flat section 211 (see fig. 4) and a wire bending section 212 (see fig. 4), the wire flat section 211 is disposed in the first mounting hole 120 and is clamped between the fixing mesh 300 and the mounting cover 100, the wire bending section 212 is disposed in the second preformed hole 410 and the third preformed hole 510 in a penetrating manner and is connected to the circuit board 500, the second preformed hole 410 is provided with a sealing member (not shown), and the sealing member may be a sealant such as epoxy glue, and is used to prevent the electrolyte from leaking from the second preformed hole 410.
At least one first preformed hole 140 penetrating through the lower surface of the mounting case 400 is formed in the inner side wall of the first mounting hole 120, and the first preformed hole 140 can be penetrated by the unbent wire electrode 210 in the assembling process of the electrochemical sensor 1. The fixed mesh 300 is provided with at least one fourth preformed hole 330 for the wire electrode 210 to pass through, and the fourth preformed hole 330 is used for the wire electrode bending section 212 formed by the bent wire electrode 210 to pass through.
It should be noted that the bent portion of the wire electrode 210 may be determined according to a design, and the bent portion of the wire electrode 210, that is, the wire electrode bent section 212 formed by the bent wire electrode 210, may be located in the first preformed hole 140, may also be located in a gap between the installation cover 100 and the fixed mesh 300, may also be located in the fourth preformed hole 330, and may also be located outside the installation cover 100.
The method of assembling the electrochemical sensor 1 in this embodiment is: the electrode assembly 200 including the plurality of electrode wires 210 is placed in the mounting cover 100, the electrode assembly 200 is fixed by the fixed connection of the fixing net 300 and the mounting cover 100, the plurality of electrode wires 210 are bent in a unified manner, and finally the mounting case 400 and the mounting cover 100 are connected together. In the present application, one end of the straight and unbent wire electrode 210 is clamped between the fixing mesh 300 and the mounting cover 100, so that the plurality of wire electrodes 210 are fixed at the designated positions in the electrode assembly 200, and then the plurality of wire electrodes 210 can be bent respectively based on the electrode assembly 200 or the fixing mesh 300, thereby improving the assembly accuracy of the electrochemical sensor 1.
And the electrochemical sensor 1 in the embodiment can be assembled not only by a person, but also by a machine, and has high automation degree, so that the electrochemical sensor can be produced in a large scale.
Fig. 4 is an exploded view of an electrochemical sensor 1 according to an embodiment of the present disclosure. Fig. 5 is an exploded view of an electrochemical sensor 1 according to another view angle, according to an embodiment of the present disclosure. The electrode assembly 200 further includes: a plurality of electrode films 220, at least one separator 240, and at least one liquid-absorbent paper 230. An electrode film 220 is combined with a wire electrode 210 to form an electrode module.
In this embodiment, there are 2 isolation films 240, 3 electrode films 220, 3 wire electrodes 210, 3 electrode modules, which are respectively a working electrode 201, a counter electrode 203, and a reference electrode 202, and the electrode films 220 of the working electrode 201 and the mounting cover 100 are connected together by means of heat fusion or the like. The plurality of electrode films 220 may be identically sized and shaped. The plurality of separators 240 includes a first separator 241 and a second separator 242, the first separator 241 being disposed between the working electrode 201 and the reference electrode 202, and the second separator 242 being disposed between the reference electrode 202 and the counter electrode 203. The first isolation film 241 and the second isolation film 242 may be annular or disk-shaped objects made of an insulating material such as PTFE.
In another embodiment, there are 1 isolating film 240, 2 electrode films 220, 2 wire electrodes 210, 2 electrode modules, which are respectively a working electrode 201 and a counter electrode 203, and 1 isolating film 240 between the working electrode 201 and the counter electrode 203.
Fixed net piece 300 is equipped with at least one mesh 310, and imbibition paper 230 has straight portion 231 of imbibition paper and imbibition paper kink 232, and the straight portion 231 of imbibition paper presss from both sides and locates fixed net piece 300 and counter electrode 203, and imbibition paper kink 232 passes in mesh 310 stretches into installation shell 400 for absorb the electrolyte in installation shell 400. In this embodiment, there are 6 mesh openings 310, each arranged in a circumferential array around the axis of the mesh 300. The imbibition paper 230 is equipped with two, and for cross arrangement, the both ends of every imbibition paper 230 are imbibition paper kink 232, and the middle part of every imbibition paper 230 is the straight portion 231 of imbibition paper. In another embodiment, one end of each liquid-absorbing paper 230 is a folded portion 232 of the liquid-absorbing paper, and the other end of each liquid-absorbing paper 230 is a straight portion 231 of the liquid-absorbing paper.
The fixing net 300, the mounting cover 100 and the mounting case 400 may be made of plastic or other materials by injection molding. The outer side wall of the mounting cover 100 is provided with a mounting groove 160 communicated with the first preformed hole 140, the mounting shell 400 is embedded in the mounting groove 160, and the mounting groove 160 can be used for shielding the first preformed hole 140 and enhancing the connection reliability and sealing performance of the mounting shell 400 and the mounting cover 100. The connection between the mounting case 400 and the mounting cover 100 may be ultrasonic welding, snap-fit, plug-in, or screw connection.
The fixing mesh 300 is provided with at least one fixing hole 320, and the inner surface of the first mounting hole 120 is convexly provided with at least one fixing convex column 130 matched with the fixing hole 320. In this embodiment, the fixing protrusion 130 may be cylindrical, the fixing holes 320 are 6 square through holes uniformly distributed and penetrating through the outer sidewall of the fixing mesh 300, and the fixing protrusion 130 is 6 square prisms uniformly distributed and disposed on the inner sidewall and the inner bottom surface of the first mounting hole 120. With such an arrangement, the circumferential displacement of the fixed mesh 300 can be limited by the fixing convex column 130. The fixing post 130 is a heat-melting post, and the fixing mesh 300 is heat-melted with the fixing post 130 to fix the fixing mesh 300 on the fixing post 130.
Each fixing convex column 130 is provided with at least one first step 131 which can abut against the fixing net piece 300. The number of the first steps 131 may be 1, 2, or 3, and in this embodiment, the number of the first steps 131 is two, and the first steps are respectively located at two sides of the fixing protrusion 130.
The first step 131 is arranged to limit the movement of the fixing boss 130 in the vertical direction, so that the distance between the fixing mesh 300 and the inner surface of the first mounting hole 120 is limited, the mounting space of the electrode assembly 200 is limited, the assembly error range of the electrode assembly 200 in the height direction (vertical direction) can be accurately controlled within the height tolerance range of the first step 131, namely +/-0.03 mm, the mounting precision is high, the consistency of the pressing force and the density of each component in the electrode assembly 200 is improved, the stability of the output electric signal of the electrochemical sensor 1 is improved, and the consistency of the electric signals of different electrochemical sensors 1 is higher.
Be equipped with the breach 420 that runs through installation shell 400 lateral wall on the bottom of installation shell 400, on the inner wall of installation shell 400 and be located breach 420 department and be equipped with L shape connecting plate 430, L shape connecting plate 430 forms second step 440 with the inner wall of installation shell 400, and second preformed hole 410 is located on second step 440.
So set up, not only can reduce the size of second preformed hole 410, reduce the size or the weight of sealing member, improve the sealing performance of installation shell 400, can make the axis of fourth preformed hole 330, second preformed hole 410 and third preformed hole 510 be located same vertical plane moreover to make wire electrode bending section 212 needn't buckle again, reduce the cracked possibility of wire electrode 210. In this embodiment, the wire electrode 210 is bent only once, and an included angle between the wire electrode straight section 211 and the wire electrode bent section 212 is about 90 degrees.
In addition, the gap 420 may allow the second preformed hole 410 and the circuit board 500 to be disposed at an interval, and the wire electrode 210, the second preformed hole 410 and the third preformed hole 510 to be exposed, which is favorable for performing a sealing process on the second preformed hole 410 and connecting the wire electrode 210 and the circuit board 500 together in an assembling process of the electrochemical sensor 1.
The first prepared hole 140, the second prepared hole 410, the third prepared hole 510 and the fourth prepared hole 330 are all used for the electrode wire 210 to pass through, the aperture of the first prepared hole is larger than that of the electrode wire 210, the number of the first prepared hole and the second prepared hole can be equal to or different from that of the electrode wire 210, and the shape of the first prepared hole and the shape of the second prepared hole can be designed according to requirements. In this embodiment, the number of the first preformed hole 140, the third preformed hole 510 and the fourth preformed hole 330 is 3, and the first preformed hole 140, the third preformed hole 510 and the fourth preformed hole 330 are round holes and respectively correspond to the 3 wire electrodes 210. The number of the second preformed holes 410 is 1, and the second preformed holes 410 are strip-shaped holes through which 3 electrode wires 210 can pass simultaneously.
The mounting case 400 and the mounting cover 100 are circular in cross section, and the axis of the mounting case 400 and the axis of the mounting cover 100 coincide.
Fig. 6 is a flowchart illustrating an assembly method of the electrochemical sensor 1 according to an embodiment of the present disclosure. The method of assembling the electrochemical sensor 1 may be used to manufacture the electrochemical sensor 1 of the embodiment shown in fig. 1 to 5, the method comprising the steps of:
step S101: the filter 600 is fitted into the second mounting hole 150 of the mounting cap 100.
Wherein the second mounting hole 150 is a stepped hole formed in the upper surface of the mounting cap 100, and the filter 600 is mounted to the lowermost portion of the second mounting hole 150.
Step S102: the auxiliary cap 800 is fitted into the second mounting hole 150 and press-fitted to the filter 600.
Wherein the filter member 600 is fitted to the middle portion of the second mounting hole 150. The auxiliary cover 800 is fixedly connected with the mounting cover 100, and the auxiliary cover 800 and the mounting cover 100 may be connected in an interference fit manner, a snap connection manner, a hinge connection manner or a bolt fixing manner.
Step S103: the dustproof film 700 is fitted into the second mounting hole 150 and is press-fitted to the auxiliary cover 800.
Wherein the filter member 600 is mounted to the topmost portion of the second mounting hole 150. The dust-proof film 700 is fixedly connected with the mounting cover 100, and the connection manner of the dust-proof film 700 and the mounting cover 100 can be glue joint, hot melt, snap connection or bolt fixation.
Step S104: an electrode assembly 200 including at least a plurality of wire electrodes 210 is mounted in the first mounting hole 120 of the mounting cap 100.
The first mounting hole 120 is a hole formed in the lower surface of the mounting cover 100. The inner side wall of the first mounting hole 120 is provided with a first preformed hole 140, one part of the wire electrode 210 is arranged in the first mounting hole 120, and the other part of the wire electrode passes through the first preformed hole 140 to extend out of the first mounting hole 120. In this step, the wire electrode 210 is inserted into the predetermined position of each component of the electrode assembly 200 through the first preformed hole 140 in a horizontal and straight state without being bent.
Before the step S104, a step S10401 may be further included, in which the step S10401 inverts the entire intermediate product (the mounting cap 100 with the filter 600, the auxiliary cap 800, and the dust-proof film 700) obtained in the step S103 so that the opening of the first mounting hole 120 faces upward, thereby facilitating the placement of the electrode assembly 200 and improving the assembly accuracy of the electrochemical sensor 1.
In one embodiment, when there are 2 isolation films 240 and 3 electrode modules, namely, the working electrode 201, the counter electrode 203 and the reference electrode 202, the step S104 includes the following steps: step S1041 to step S1046. Step S1041: the working electrode 201 is placed on the inner surface of the first mounting hole 120, and the electrode film 220 in the working electrode 201 and the mounting cap 100 are thermally fused and fixed. Step S1042: the first isolation film 241 is disposed in the first mounting hole 120 and pressed against the working electrode 201. Step S1043: the reference electrode 202 is placed in the first mounting hole 120 and pressed against the first isolation film 241. Step S1044: the second isolation film 242 is disposed in the first mounting hole 120 and pressed against the reference electrode 202. Step S1045: the counter electrode 203 is disposed in the first mounting hole 120 and pressed against the second isolation film 242. Step S1046: the liquid-absorbent paper 230 is placed in the first mounting hole 120 and pressed against the counter electrode 203.
In another specific embodiment, when there are 1 isolating membrane 240 and 2 electrode modules, and the 2 electrode modules are the working electrode 201 and the counter electrode 203 respectively, the step S104 includes the following detailed steps: step S1041 '-step S1044'. Step S1041': the working electrode 201 is placed on the inner surface of the first mounting hole 120, and the electrode film 220 in the working electrode 201 and the mounting cap 100 are thermally fused and fixed. Step S1042': the isolation film 240 is disposed in the first mounting hole 120 and pressed against the working electrode 201. Step S1043': the counter electrode 203 is placed in the first mounting hole 120 and pressed against the isolation film 240. Step S1044': the liquid-absorbent paper 230 is placed in the first mounting hole 120 and pressed against the counter electrode 203.
Step S105: the mesh sheet 300 is placed in the first mounting hole 120 and pressed against the electrode assembly 200.
In one embodiment, the step S105 includes the following steps: step S1051 to step S1052. Step S1051: the fixing mesh 300 is put into the first mounting hole 120 and pressed against the liquid absorbing paper 230. Step S1052: the liquid absorbing paper 230 is partially clamped in the fixed mesh 300 and the counter electrode 203, and partially penetrates through the meshes 310 of the fixed mesh 300 and extends out of the first mounting holes 120.
In an embodiment, the step S1052 may include a step of folding the liquid-absorbent paper 230, so that the liquid-absorbent paper 230 has a liquid-absorbent paper straight portion 231 and a liquid-absorbent paper folded portion 232 by folding. In another embodiment, the liquid-absorbing paper 230 put in step S1046 or step S1044' may have a liquid-absorbing paper straight portion 231 and a liquid-absorbing paper bent portion 232, and step S1052 is implemented by adjusting the relative positions of the mesh 310 and the liquid-absorbing paper bent portion 232.
Step S106: the fixing mesh 300 is combined and fixed with the mounting cap 100.
In this step, the electrode assembly 200 is fixed by fixing the fixing mesh 300 to the mounting cap 100.
In one embodiment, the step S106 includes the following steps: step S1061 to step S1063. Step S1061: the fixing holes 320 of the fixing mesh 300 are matched with the fixing posts 130 on the inner surface of the first mounting hole 120. Step S1062: the fixed mesh 300 is abutted against the first step 131 of the fixed boss 130. Step S1063: the fixing net 300 and the fixing boss 130 are heat-melted to fix the fixing net 300 and the mounting cap 100. In this way, the installation accuracy of the fixing mesh 300 may be improved by the arrangement of the fixing boss 130 and the first step 131, so as to improve the installation accuracy of the electrode assembly 200.
Step S107: all the wire electrodes 210 are bent to form wire electrode bent sections 212 of the wire electrodes 210.
Before this step S107, step S10701 may be further included. Step S10701: the entire intermediate product obtained in step S106 (the mounting cap 100 with the anchor mesh 300 and the electrode assembly 200 mounted thereon) is turned upside down so that the opening of the first mounting hole 120 faces downward.
Since a portion of the wire electrode 210 is fixed at a predetermined position in the electrode assembly 200, the portion of the wire electrode 210 that is not clamped, i.e., the portion extending out of the first mounting hole 120, is bent downward, so that the wire electrode 210 has a wire electrode bent section 212 and a wire electrode straight section 211. The wire flat section 211 is used to electrically connect with the corresponding electrode film 220 in the electrode assembly 200, and the wire bent section 212 is used to electrically connect with the circuit board 500.
Step S108: the circuit board 500 is mounted on the mounting case 400.
In this step, the circuit board 500 is mounted in the groove on the bottom surface of the mounting case 400, and the circuit board 500 and the mounting case 400 may be clamped by the groove, may be fixed by bolts, and may be fixed by the hot-melt columns.
Step S109: the mounting case 400 is mounted and fixed to the mounting cap 100 on which the fixing mesh 300 and the electrode assembly 200 are mounted.
Wherein the second preformed hole 410 has been seted up to installation shell 400, is equipped with circuit board 500 on the installation shell 400, and third preformed hole 510 has been seted up to circuit board 500, and this step needs to make wire electrode bending section 212 wear to locate in second preformed hole 410 and the third preformed hole 510 at the fixed in-process of installation.
Before the step S109, a step S10901 may be further included. Step S10901: the whole intermediate product (the mounting case 400 with the circuit board 500) obtained in the step S108 is turned upside down so that the opening of the mounting groove of the mounting case 400 for placing the electrolyte is upward; the connection between the mounting case 400 and the mounting cover 100 is facilitated, and the coaxial assembly precision of the electrochemical sensor 1 is improved.
In one embodiment, the step S109 includes the following steps: step S1091 to step S1092. Step S1091: the mounting cap 100 with the fixing mesh 300 and the electrode assembly 200 mounted thereon is covered on the mounting case 400, and the mounting case 400 is fitted in the mounting groove 160 of the mounting cap 100 to shield the first prepared hole 140. Step S1092: the mounting case 400 is welded and sealed with the mounting cap 100.
Wherein, the step S1091: this can be achieved by sucking up the entire intermediate product obtained in step S107 with a suction cup and moving down the mounting cover 100, which is mounted on the mounting case 400. The welding of step S1092 may be performed by ultrasonic welding to improve the sealing effect and prevent the leakage of the electrolyte.
Step S110: the second preformed hole 410 is processed by sealing.
The sealing glue in the step can adopt epoxy glue. The solidified epoxy glue is a sealing element. This step prevents the electrolyte from leaking from the second preformed hole 410 by a sealing process.
Step S111: the wire electrode bent section 212 is connected to the circuit board 500.
The wire electrode bending section 212 and the circuit board 500 may be connected by soldering.
It should be noted that, in another embodiment, step S108 may not be executed, and the mounting case 400 with the circuit board 500 mounted thereon is directly obtained to perform step S109. In another embodiment, step S108 may be performed before or simultaneously with any of steps S101-S109.
In another embodiment, step S101, step S102, and step S103 may not be performed, and the installation cap 100 with the filter 600, the auxiliary cap 800, and the dust-proof film 700 mounted thereon is directly obtained to perform step S104. In another embodiment, step S101, step S102 and step S103 may be executed after any one of step S104 to step S111.
In the present embodiment, one end of the straight and unbent wire electrode 210 is first clamped between the fixing mesh 300 and the mounting cover 100, so that the plurality of wire electrodes 210 are fixed at the designated positions in the electrode assembly 200, and then the plurality of wire electrodes 210 can be respectively bent based on the electrode assembly 200 or the fixing mesh 300, thereby improving the assembly accuracy of the electrochemical sensor 1.
In addition, any step in the embodiment can be executed manually or automatically by a machine, so that full-automatic production or partial-automatic production can be realized, and the production efficiency is high.
It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A method of assembling an electrochemical sensor, comprising:
installing an electrode assembly including at least a plurality of wire electrodes into the first installation hole of the installation cover; the inner side wall of the first mounting hole is provided with a first preformed hole, one part of the wire electrode is arranged in the first mounting hole, and the other part of the wire electrode penetrates through the first preformed hole to extend out of the first mounting hole;
placing a fixing mesh into the first mounting hole and pressing the fixing mesh on the electrode assembly;
combining and fixing the fixed mesh and the mounting cover;
bending the electrode wire to form an electrode wire bending section;
mounting and fixing a mounting shell and a mounting cover provided with the fixing net piece and the electrode assembly; the mounting shell is provided with a second preformed hole, the mounting shell is provided with a circuit board, the circuit board is provided with a third preformed hole, and the wire electrode bending section penetrates through the second preformed hole and the third preformed hole;
sealing glue treatment is carried out on the second preformed hole;
and connecting the electrode wire bending section with the circuit board.
2. The method of assembling an electrochemical sensor of claim 1, wherein the electrode assembly further comprises: the liquid absorbing device comprises a plurality of electrode films, a plurality of isolating films and at least one liquid absorbing paper, wherein the isolating films comprise a first isolating film and a second isolating film; an electrode film and a wire electrode are combined to form an electrode module; wherein a plurality of the electrode modules comprise a working electrode, a counter electrode, and a reference electrode;
the electrode assembly including at least a plurality of electrode wires is mounted in the first mounting hole of the mounting cover, including:
placing the working electrode on the inner surface of the first mounting hole, and enabling an electrode film in the working electrode and the mounting cover to be fixed in a hot melting mode;
placing the first isolating membrane in the first mounting hole and pressing the first isolating membrane on the working electrode;
placing the reference electrode in the first mounting hole and pressing the reference electrode on the first isolating membrane;
placing the second isolating membrane in the first mounting hole and pressing the second isolating membrane on the reference electrode;
placing the counter electrode in the first mounting hole and pressing the counter electrode on the second isolating film;
and placing the liquid absorption paper in the first mounting hole and pressing the liquid absorption paper on the counter electrode.
3. The method of assembling an electrochemical sensor of claim 2, wherein placing a mesh anchor into the first mounting hole and pressing against the electrode assembly comprises:
placing a fixed net sheet into the first mounting hole and pressing the fixed net sheet on the liquid absorption paper;
and clamping the liquid absorption paper in the fixed mesh and the counter electrode, wherein part of the liquid absorption paper penetrates through meshes of the fixed mesh and extends out of the first mounting hole.
4. The method of assembling an electrochemical sensor of claim 1, wherein said securing said mesh in combination with said mounting cap comprises:
the fixing holes on the fixing net piece are matched with the fixing convex columns on the inner surfaces of the first mounting holes;
enabling the fixed net sheet to abut against the first step of the fixed convex column;
and carrying out hot melting treatment on the fixed mesh and the fixed convex columns so as to combine and fix the fixed mesh and the mounting cover.
5. The method of assembling an electrochemical sensor according to claim 1, wherein the fixing of the mounting case to the mounting cap with the fixing mesh and the electrode assembly comprises:
covering the installation cover provided with the fixed net piece and the electrode assembly on the installation shell, and embedding the installation shell in an installation groove of the installation cover so as to shield the first reserved hole;
and welding and sealing the mounting shell and the mounting cover.
6. The method of assembling an electrochemical sensor according to any one of claims 1 to 5, further comprising:
installing a filter element into the second mounting hole of the mounting cover;
an auxiliary cover is arranged in the second mounting hole and is pressed in the filter piece;
the dustproof film is arranged in the second mounting hole and is pressed on the auxiliary cover;
and mounting the circuit board on the mounting shell.
7. An electrochemical sensor, comprising:
the mounting cover is provided with a first vent hole and a first mounting hole which are communicated, and the inner side wall of the first mounting hole is provided with at least one first preformed hole;
the fixed net piece is arranged in the first mounting hole and is fixedly connected with the mounting cover;
the electrode assembly is arranged in the first mounting hole and clamped between the fixed net piece and the inner bottom surface of the first mounting hole, and the electrode assembly at least comprises a plurality of electrode wires;
the mounting shell is hermetically connected with the mounting cover, and is provided with at least one second preformed hole; and
the circuit board is connected with the mounting shell and is provided with at least one third preformed hole;
the electrode wire is provided with an electrode wire straight section and an electrode wire bending section, the electrode wire straight section is arranged in the first mounting hole and clamped between the fixed net piece and the mounting cover, the electrode wire bending section penetrates through the second preformed hole and the third preformed hole and is connected with the circuit board, and a sealing piece is arranged in the second preformed hole.
8. The electrochemical sensor according to claim 7, wherein a mounting groove communicating with the first preformed hole is formed on an outer side wall of the mounting cover, and the mounting shell is embedded in the mounting groove to shield the first preformed hole;
the fixed net sheet is provided with at least one fixed hole, and the inner surface of the first mounting hole is convexly provided with at least one fixed convex column matched with the fixed hole; the fixed convex column is provided with at least one first step which can be abutted against the fixed net sheet so as to limit the movement of the fixed net sheet.
9. The electrochemical sensor according to claim 7, wherein the fixing mesh is provided with at least one fourth preformed hole, and the wire electrode bending section is arranged in the fourth preformed hole in a penetrating manner;
a notch penetrating through the side wall of the mounting shell is formed in the mounting shell, an L-shaped connecting plate is arranged on the inner wall of the mounting shell and positioned at the notch, the L-shaped connecting plate and the inner wall of the mounting shell form a second step, and the second preformed hole is formed in the second step;
the axes of the fourth preformed hole, the second preformed hole and the third preformed hole are positioned on the same plane.
10. The electrochemical sensor according to any one of claims 7 to 9, wherein the electrode assembly further comprises:
a plurality of electrode films, one electrode film and one wire electrode are combined to form an electrode module; the electrode modules comprise a working electrode, a counter electrode and a reference electrode, and an electrode film of the working electrode is connected with the mounting cover;
a plurality of separators, the plurality of separators including a first separator and a second separator, the first separator disposed between the working electrode and the reference electrode, the second separator disposed between the reference electrode and the counter electrode; and
at least one imbibition paper, fixed mesh piece is equipped with at least one mesh, imbibition paper has straight portion of imbibition paper and imbibition paper kink, the straight portion of imbibition paper presss from both sides and locates fixed mesh piece with in the counter electrode, imbibition paper kink passes the mesh stretches into in the installation shell.
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| CN202110912246.6A CN113504276A (en) | 2021-08-10 | 2021-08-10 | Electrochemical sensor and method of assembling the same |
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| CN202110912246.6A CN113504276A (en) | 2021-08-10 | 2021-08-10 | Electrochemical sensor and method of assembling the same |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4897174A (en) * | 1988-05-24 | 1990-01-30 | Gte Laboratories Incorporated | Gas sensing apparatus |
| CN111380937A (en) * | 2018-12-28 | 2020-07-07 | 财团法人工业技术研究院 | Gas sensing device and gas sensing system |
| CN112268946A (en) * | 2020-10-23 | 2021-01-26 | 江苏英诺麦德科技有限公司 | Structure and manufacturing method of miniature electrochemical sensor based on miniature three-dimensional electrode |
| CN212748793U (en) * | 2020-06-18 | 2021-03-19 | 威海安信电子科技有限公司 | Electrochemical gas probe |
-
2021
- 2021-08-10 CN CN202110912246.6A patent/CN113504276A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4897174A (en) * | 1988-05-24 | 1990-01-30 | Gte Laboratories Incorporated | Gas sensing apparatus |
| CN111380937A (en) * | 2018-12-28 | 2020-07-07 | 财团法人工业技术研究院 | Gas sensing device and gas sensing system |
| CN212748793U (en) * | 2020-06-18 | 2021-03-19 | 威海安信电子科技有限公司 | Electrochemical gas probe |
| CN112268946A (en) * | 2020-10-23 | 2021-01-26 | 江苏英诺麦德科技有限公司 | Structure and manufacturing method of miniature electrochemical sensor based on miniature three-dimensional electrode |
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