CN106383157A - Sensing device and electrode test piece thereof - Google Patents
Sensing device and electrode test piece thereof Download PDFInfo
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- CN106383157A CN106383157A CN201610934359.5A CN201610934359A CN106383157A CN 106383157 A CN106383157 A CN 106383157A CN 201610934359 A CN201610934359 A CN 201610934359A CN 106383157 A CN106383157 A CN 106383157A
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- 239000000758 substrate Substances 0.000 claims abstract description 41
- 230000004888 barrier function Effects 0.000 claims description 33
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 238000010586 diagram Methods 0.000 description 10
- 238000007639 printing Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- 230000012447 hatching Effects 0.000 description 6
- 239000000523 sample Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005518 electrochemistry Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910021607 Silver chloride Inorganic materials 0.000 description 2
- 229940075397 calomel Drugs 0.000 description 2
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 2
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical compound Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 235000012000 cholesterol Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- 239000003792 electrolyte Substances 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a sensing device and an electrode test piece thereof. The electrode test piece comprises a substrate, a first working electrode, a second working electrode and an insulating layer. The first working electrode includes a first line portion and a first output pad. The second working electrode comprises a second circuit part, a third circuit part and a second output pad, and the second circuit part and the third circuit part are separated by a gap. The insulating layer covers the first circuit portion, the second circuit portion and the third circuit portion, and defines an opening, so that the insulating layer does not cover part of the gap and the first circuit portion corresponding to part of the gap. The control unit detects a first signal value on the first working electrode and a second signal value on the second working electrode, and outputs a sensing value according to a difference value of the first signal value and the second signal value.
Description
Technical field
The present invention relates to electrochemical field, the more particularly, to electrode of the sensing device further of Applied Electrochemistry principle and sensing device further
Test piece.
Background technology
The sensing mode of three electrode system electrolysis baths of electrochemistry, by the change of sensing chemical energy, is converted to the signal of telecommunication to enter
The follow-up various analyses of row, such as reaction rate analysis, concentration analysis, corrosion rate analysis etc..Sending out with printed circuit
Exhibition, electrode can be printed in formation electrode test piece on substrate by printing technology, due to the very little that prints electrode in test piece, therefore can
Sensed with the measurement condition to the sample of a small amount of, low chemical change amount, low current.Further, through additional catalyst or
The reaction materials such as ferment, electrode test piece can be used for sensing blood glucose sensing, cholesterol sensing, the nitrite, very of food remaining
To biomedical applications such as the fast sieves of influenza.
Working electrode is comprised on the electrode test piece of prior art, working electrode is formed with mode of printing, the one of working electrode
Partial exposure is sensed in sample or electrolytic solution, and other parts are then covered by insulating barrier.The print of insulating barrier now
Brush technically may produce displacement or the problem of crooked deviation, this each electrode test piece will be led to expose to the open air for sample or
The area of the working electrode in electrolytic solution is inconsistent.This problem can lead under identical conditions, and each electrode test piece senses
Signal value, for example, the magnitude of current or electric current density will be different, and then have impact on the sensing value of final output.Due to printing system
The sensing value of the deviation of journey and unstability, the sensing accuracy of electrode test piece and stability and output is all under suspicion.
Content of the invention
In order to solve the problems, such as in prior art, the stability of signal value and accuracy that lifting senses, it is to avoid sensing face
Amass because of the impact of fabrication errors.It is an object of the invention to provide the electrode test piece that a kind of sensing device further and sensing device further use.
According to an embodiment, sensing device further includes electrode test piece, reference electrode, auxiliary electrode and control unit.Electrode test piece includes
Substrate, the first working electrode, the second working electrode and insulating barrier.First working electrode is located on substrate, comprises first line
Portion and the first output pad in electric property coupling first line portion.Second working electrode be located at substrate on, comprise the second line part, the 3rd
Line part and the second output pad in electric property coupling second line part and tertiary circuit portion.Second line part and tertiary circuit portion phase
Away from a gap.Insulating barrier covers at least a portion, at least a portion of the second line part and the tertiary circuit portion in first line portion
At least a portion, insulating barrier defines an opening and makes the gap of insulating barrier unmasked portion, and partial gap institute is right
The first line portion answered.
Control unit electric property coupling first output pad, the second output pad, reference electrode and auxiliary electrode, control unit is used
To provide predetermined voltage level to reference electrode, and detect the first signal value and second working electrode of the first working electrode offer
The secondary signal value providing, control unit is according to the difference output sensing value of the first signal value and secondary signal value.It is, control
Unit processed carries out logical operationss using secondary signal value and the first signal value, to correct sensing value, lifting electrode test piece electrode examination
The sensing accuracy of piece and sensing degree of stability.Here, at least being sensed with the part first line portion that opening is exposed, to examine
Survey the first signal value.Due to have between first line portion and the second line part, tertiary circuit portion interval do not contact with each other so that
First working electrode and the second working electrode can have different signal values when detecting same sample, therefore can utilize this
Non- null difference is being corrected.
In an embodiment, opening has relative first side and second side, first side across first line portion and
Second line part, second side defines one first across first line portion and tertiary circuit portion, the bearing of trend of the second line part
Axially, the vertical direction of the first axial direction defines one second axially.Second line part is located at the area of end in opening, with First Line
The area that road portion extends to section between end and first side along the second axis projection is substantially equal.
In an embodiment, opening has relative first side and second side, first side across first line portion and
Second line part, second side defines first axle across first line portion and tertiary circuit portion, the bearing of trend of the second line part
To the vertical direction of the first axial direction defines second axially.The end that second line part is located in opening defines a tangent line, and tangent line is cut
End in neat second circuit position opening and cut through first line portion, first line portion be located at tangent line and first side it
Between area be substantially equal to the second line part be located at opening in end and first side between area.Even if it is,
In insulation displacement or deviation, when so that the sensing gross area that the first working electrode is located in opening is changed, remain able to using right
The second line part answered and tertiary circuit portion expose to the area of opening to correct, so that in control unit in the sensing being exported
Value is substantially identical.
In one embodiment, the second working electrode additionally comprises connecting portion, connecting portion electric property coupling second line part and the 3rd
Line part, so that the second output pad and the second line part, tertiary circuit portion electric property coupling, insulating barrier covering connecting portion, it is,
Connecting portion is only used for electric property coupling, independent of the second line part and tertiary circuit portion, the signal value in first line portion is corrected.
In one embodiment, insulating barrier has side portion, and side portion is located at the side of substrate, and side portion is located at the first side
Between side and second side, side portion covers at least a portion of connecting portion.
In one embodiment, a surface of substrate comprises multiple grooves, and the first working electrode and the second working electrode are respectively
In groove, reference electrode and auxiliary electrode are located on the surface of substrate, with the first working electrode and the second working electrode tool
There is difference in height.In other words, reference electrode, auxiliary electrode system and the first working electrode, the second working electrode are integrated in electrode test piece
In, and the first working electrode and the second working electrode are embedded in substrate.Thereby, it can be avoided that electrode test piece is made first by external force
Working electrode or the second working electrode from strippable substrate, cause to sense the first signal value that area changes and impact is sensed
Or the problem of secondary signal value.
Further, electrode test piece comprises the first working electrode, the second working electrode, reference electrode and auxiliary electrode,
Wherein reference electrode and auxiliary electrode are arranged on substrate, and the second working electrode and reference electrode are located at the first work electricity respectively
The opposite sides of pole, the second working electrode and auxiliary electrode are located at the opposite sides of the first working electrode respectively.
The present invention separately discloses a kind of sensing device further, comprises substrate, the first working electrode, the second working electrode and insulation
Layer.First working electrode is located on substrate, in order to produce the first signal value according to tested target, comprises first line portion.Second
Working electrode is located on substrate, in order to produce secondary signal value according to tested target.Second working electrode comprises the second line part
And tertiary circuit portion, the second line part and a tertiary circuit portion gap apart.Insulating barrier covers at least of first line portion
Point, at least a portion at least a portion of the second line part and tertiary circuit portion, the wherein second working electrode also comprises to connect
Portion, connecting portion electric property coupling second line part and tertiary circuit portion.Insulating barrier covers connecting portion.Thereby, sensing device further passes through and covers
The connecting portion being placed on insulating barrier connects the second line part and tertiary circuit portion, arrange the second line part of mutual electric property coupling with
And tertiary circuit portion.
In one embodiment, sensing device further also comprises control unit, control unit electric property coupling first working electrode and
Two working electrodes, control unit is in order to receive the first signal value and secondary signal value, and is believed according to the first signal value and second
Number value difference produce sensing value.
In sum, electrode test piece has the first working electrode and the second working electrode, by the of the first working electrode
A part for one line part corresponds to the gap on the second working electrode between the second line part and tertiary circuit portion, sensing device further
The secondary signal that can be sensed by the second line part that gap both sides on the second working electrode are exposed and tertiary circuit portion
Value, the first signal value that the first working electrode is provided is corrected, and can overcome the printing error of insulating barrier, maintains electrode examination
The signal value stabilization that piece senses.
Brief description
Fig. 1 is the structural representation of sensing device further one embodiment.
Fig. 2 is the structural representation of another embodiment of sensing device further.
Fig. 3 A is the upper schematic diagram of electrode test piece first embodiment.
Fig. 3 B is the upper schematic diagram of electrode test piece second embodiment.
Fig. 3 C is the upper schematic diagram of electrode test piece 3rd embodiment.
Fig. 3 D is the upper schematic diagram of electrode test piece fourth embodiment.
Fig. 3 E is the upper schematic diagram of electrode test piece the 5th embodiment.
Fig. 4 is the cross-sectional schematic of 5-5 ' hatching in Fig. 3 A.
Fig. 5 A is the generalized section of 6-6 ' hatching first embodiment in Fig. 3 B.
Fig. 5 B is the generalized section of 6-6 ' hatching second embodiment in Fig. 3 B.
Fig. 5 C is the generalized section of 6-6 ' hatching 3rd embodiment in Fig. 3 B.
Wherein, reference：
10 electrode test piece 100 sensing device further
13 first working electrode 11 substrate
133 first line portion 131 first output pad
Area of 1331 first area 1,333 second
15 second working electrode 1335 the 3rd area
153 second line part 151 second output pad
157 connecting portion 155 tertiary circuit portion
171 opening 17 insulating barrier
1713 second side 1711 first side
175 side portion 30 control unit
50 reference electrode 501 the 3rd output pad
503 reference circuit 701 the 4th output pad
70 auxiliary electrode 703 auxiliary line
The axial B length of A first is axially
The axial D distance of C second
D1 is apart from D2 distance
D3 is apart from D4 distance
F1 tangent line F2 tangent line
G gap W1 width
W2 width W3 width
W4 width
Specific embodiment
Refering to Fig. 1, it is the structural representation of sensing device further one embodiment.As shown in figure 1, in the present embodiment, sensing dress
Put 100 and comprise electrode test piece 10, control unit 30, reference electrode 50 and auxiliary electrode 70.Here, with reference to Fig. 3 A, electrode
The upper schematic diagram of test piece first embodiment.As shown in Fig. 1 and Fig. 3 A, electrode test piece 10 includes substrate 11, the first working electrode
13rd, the second working electrode 15 and insulating barrier 17.First working electrode 13 is located on substrate 11, and the first working electrode 13 comprises first
Output pad 131 and the first line portion 133 with the first output pad 131 electric property coupling.Second working electrode 15 is located on substrate 11,
Second working electrode 15 comprises the second output pad 151 and the second line part 153 and the 3rd with the second output pad 151 electric property coupling
Line part 155.Second line part 153 and tertiary circuit portion 155 are at a distance of clearance G, here, the second working electrode 15 additionally comprises one even
Socket part 157, connecting portion 157 is in electric property coupling the second line part 153 and tertiary circuit portion 155.The second of second working electrode 15
Line part 153 and tertiary circuit portion 155 essence are located on the first axial A, the first axial substantially parallel first line portion 133 of A
Long axial direction B.
Insulating barrier 17 cover at least a portion in first line portion 133, at least a portion of the second line part 153, the 3rd
At least a portion of line part 155 and connecting portion 157, insulating barrier 17 defines opening 171, the gap of insulating barrier 17 unmasked portion
G, and the first line portion 133 corresponding to partial clearance G is so that outside the clearance G of part and partial first line portion 133
It is exposed to opening 171.Second line part 153 is connected with by the second output pad 151, and extends to one end of clearance G.Tertiary circuit portion
155 are extended along the direction contrary with the second output pad 151 by the other end of clearance G.Opening 171 has relative first side
1711 with second side 1713.First side 1711 is across first line portion 133 and the second line part 153, second side 1713
Across first line portion 133 and tertiary circuit portion 155.Described herein be, " exposing " specifically described herein or " exposing " not
Determine expression and be fully exposed among space, the part only referring to be exposed is not completely covered by insulating barrier.
Control unit 30 electric property coupling first exports pad 131, second output pad 151, reference electrode 50 and auxiliary electrode
70.Control unit 30 is in order to provide a predetermined voltage level to reference electrode 50, and detect that the first working electrode 13 provides the
One signal value and the secondary signal value of the second working electrode 15 offer.Reference electrode 50 provides a steady potential, in order to provide control
The sensing datum mark of unit 30 processed.Auxiliary electrode 70 forms the anti-of electrochemistry with the first working electrode 13, the second working electrode 15
Answer loop.Control unit 30 exports a sensing value according to the difference of the first signal value and secondary signal value.In one embodiment, control
Unit 30 processed can be a logic circuit, comprise amplifier and logical-arithmetic unit, the first working electrode 13 and the second work is detected
Make electrode 15 offer the first signal value and secondary signal value after can be amplified, by logical-arithmetic unit according to the first signal value
And the difference output sensing value of secondary signal value.If additionally, the shape that the second working electrode 15 is covered by insulating barrier 17 completely
Under condition, then control unit 30 only receives the first signal value, and only in accordance with the first signal value output sensing value.Control unit 30,
Can realize through integrated circuit, for example, through microcontroller (MCU), programmable logic circuit, analog/digital
Mixed core integrated circuit, the mode such as ASIC (ASIC), collocation or software of not arranging in pairs or groups, firmware are realizing.
Referring again to Fig. 3 A, as shown in Figure 3A, first line portion 133 comprises the first area 1331, the second area 1333 and the 3rd
Area 1335, the one end in the wherein first area 1331 is connected with the first output pad 131, and extends along long axial direction B.Second area 1333 is by
The other end in one area 1331 extends, and corresponds to clearance G, it is, the two ends in the second area 1333 are as shown in the dotted line of Fig. 3 A, water
The flat two ends corresponding to clearance G.3rd area 1335 is extended along long axial direction B by the second area 1333, positioned at the second area 1333 with respect to
The opposite side in the first area 1331.Additionally, the first area 1331 corresponds to the second line part 153, the 3rd area 1335 corresponds to the 3rd line
Road portion 155, it is, the distance from first output pad the 131 to the second area 1333 exports pad 151 to the position of clearance G with second
Identical, identical with the distance that the other end from clearance G extends from the distance of the secondth area 1333 other end extension.Here, the firstth area
The area of 1331 area and the second line part 153 is substantially identical, the area in the area in the 3rd area 1335 and tertiary circuit portion 155
Substantially identical.Here, implementing identical definition to refer to that error amount is less than 0.05%.
In other words, opening 171 has relative first side 1711 and second side 1713, and first side 1711 is across the
One line part 133 and the second line part 153, second side horizontal stroke 1713 across first line 133 and tertiary circuit portion 155, second
The bearing of trend of line part 153 defines the first axial A, and the vertical direction of the first axial direction defines the second axial C.Second line part
153 ends being located in opening 171 define a tangent line, the dotted line between the first area 1331 and the second area 1333 in such as Fig. 3 A,
This, tangent line is roughly parallel to the second axial C, and tangent line F1 trims end in opening 171 for second line part 153 and cuts
Cross first line portion 133, first line portion 133 is located at area between tangent line F1 and first side 1711 and is substantially equal to the
Area between end that two line part 153 are located in opening 171 and first side 1711.Further, tertiary circuit portion 155
End in opening 171 defines another tangent line F2, and that is, the dotted line between the 3rd area 1335 and the second area 1333 in Fig. 3 A, cuts
Line F2 trims end in opening 171 for the tertiary circuit portion 155 and cuts through first line portion 133,133, first line portion
In the end that substantially equal to tertiary circuit portion 155 is located in opening 171 of the area between tangent line F2 and first side 1711
Area and second side 1713 between.
In embodiment shown in Fig. 1 and Fig. 3 A, reference electrode 50 and auxiliary electrode 70 can be external-added, can be used for feeling
Survey the more material of sample size, for example, electrolyte in electrolysis bath.Refering to Fig. 2, it is that the structure of another embodiment of sensing device further is shown
It is intended to, and refer to Fig. 3 B, the upper schematic diagram of electrode test piece second embodiment simultaneously.As shown in Fig. 2 and Fig. 3 B, reference electrode
50th, auxiliary electrode 70, the first working electrode 13 and the second working electrode 15 are to be integrated among electrode test piece 10, the first work
The technology of electrode 13 and the second working electrode 15 is duplicated with the technology of Fig. 1, Fig. 3 A, will not be described here.Reference electrode 50 and auxiliary
Electrode 70 is helped to be arranged on substrate 11, reference electrode 50 comprises one the 3rd output pad 501 and electric property coupling the 3rd exports pad 501
One reference line 503.Auxiliary electrode 70 comprises one the 4th output pad 701 and electric property coupling the 4th exports a boost line of pad 701
Road 703.Opening 171 exposes outside at least a portion of at least a part of of reference line 503 and auxiliary line 703.Control unit
30 connect the first output pad 131, second output pad the 151, the 3rd output pad 501 and the 4th output pad 701.This mode can will be tried
Piece is integrated, and can sense for the less situation of sample, for example, the solution of droplet-like.Refering to Fig. 3 C, electrode test piece the 3rd
The upper schematic diagram of embodiment.With reference to Fig. 3 A, as shown in Fig. 3 A and 3C, the electrode test piece 10 of 3rd embodiment is the first reality
Apply the change of example, in the first embodiment shown in Fig. 3 A, the first area 1331, the second area 1333 and the 3rd area 1335 substantially line
Wide equal same line segment.And in the 3rd embodiment shown in Fig. 3 C, in the third embodiment, the first area 1331 and the secondth area
1333 live width is unequal, and the 3rd area 1335 is unequal with the live width in the second area 1333.In the third embodiment although live width not
Identical, but the first area 1331 is substantially identical with the area that the second line part 153 is exposed by opening 171, the 3rd area 1335 and the 3rd
The area that line part 155 is exposed by opening 171 is substantially identical.
In embodiment as shown in Figure 3 A to 3C, the width W1 in first line portion 133 is 10 to 25um, the second line part
153 and the width W2 in tertiary circuit portion 155 is 10 to 25um it is preferred that the width W1 in first line portion 133, the second line part
153 and tertiary circuit portion 155 width W2 be 15 to 20um.The length of clearance G is 0.6 to 1mm it is preferred that the length of clearance G
It is 0.8 to 1mm.In addition, in the embodiment of Fig. 3 A and Fig. 3 C, first line portion 133 and the second line part 153 or tertiary circuit
The distance between portion 155 D is 0.08 to 0.2mm, preferably 0.1 to 0.16mm.Here, electrode test piece 10 meets ultra micro now
The specification of test piece, has the advantages that on sensing required sample is few, reaction is fast, equilibration time is short and high sensitivity, and for solid
State, liquid and gaseous state connect and can be sensed.
Refering to Fig. 3 D, it is the upper schematic diagram of electrode test piece fourth embodiment.Refer to Fig. 3 B, as Fig. 3 B and Fig. 3 D institute simultaneously
Show, the fourth embodiment shown in Fig. 3 D is the change of the second embodiment of Fig. 3 B, is reference electrode 50 and auxiliary electrode 70
It is integrated in the embodiment of electrode test piece 10, be only that the mode of arrangement differs.As shown in Figure 3 B, first working electrode 13
First line portion 133 is adjacent with reference line 503 and auxiliary line 703, and the second line part 153 and tertiary circuit portion 155 phase
Adjacent to auxiliary line 703, here is only to be illustrated, and can exchange the position of the first working electrode 13 and the second working electrode 15,
Or the position of reference electrode 50 and auxiliary electrode 70 is exchanged.Live width W3 of reference line 503 and the live width of auxiliary line 703
W4 is 250um to 350um, preferably 300um to 320um.In figure 3b, reference line 503 and first line portion 133 distance
D1, auxiliary line 703 with the distance between first line 133 D2, auxiliary line 703 with the second line part 153 apart from D3 are
Between 0.4mm to 1mm, preferably 0.5 to 0.8mm.The live width of reference line 50 and auxiliary line 70 is relatively larger than first line portion
133rd, the second line part 153 and tertiary circuit portion 155.
As shown in Figure 3 D, the configuration mode in electrode is differed with Fig. 3 B, the first line portion 133 of the first working electrode 13
Adjacent with the second line part 153 of the second working electrode 15, tertiary circuit portion 155, and first line portion 133 and reference electrode 50
Reference line 503 adjacent.Here is merely illustrative, can exchange the position of reference electrode 50 and auxiliary electrode 70, also can be by
The position of the second working electrode 15 and the first working electrode 13 is exchanged.In this embodiment, reference line 503 and first line portion
133 apart from D4 for 0.4mm to 1mm between, preferably 0.5 to 0.8mm.The live width of reference line 50 and auxiliary line 70 is relatively larger than
First line portion 133, the second line part 153 and tertiary circuit portion 155.
The above-mentioned width specifications apart from the current electrode test piece of D, D1, D2, D3 and D4 primary concern 10 in 3 to 5mm, and because
For insulating barrier 17 be printed in the first working electrode 13, the second working electrode 15, reference electrode 50 and auxiliary electrode 70 on when, because
For properties of materials difference, it is likely to result in the bird caging on the first side 1711 and second side 1713 of opening 171.This turns round
Bent error can reduce with distance, considers overall specification, and printing can be caused error to pass through the ratio of geometry by this distance
Relation, is reduced in acceptable range of error.Here, the relation of distance is D<D1 D2 D3 D4, reference circuit 503,
Auxiliary line 703, first line portion 133, the position of the second line part 153 and distance each other are contemplated that according to above-mentioned bar
Part configures.
Further, because controller 30 predominantly detects the sensing on the first working electrode 13 and the second working electrode 15
Value, in configuration, the configuration of Fig. 3 D only needs to consider first line portion 133 and reference line 503 because insulating barrier 17 is apart from D4's
Configuration, compare Fig. 3 B must consider multiple relatively easy apart from D1, D2, D3.
Further, in the middle of the embodiment of Fig. 1 to 3D, the first working electrode 13 and the second working electrode 15 can be print
Brush mode makes, for example, using print conductive materials such as carbon paste, graphite glue, and drying and moulding.In the embodiment of Fig. 1, can adopt
With calomel electrode (Calomel electrode) and silver/silver chloride electrode (Ag/AgCl electrode) as reference electrode 50
Conductive material, can using platinum filament as auxiliary electrode 70 conductive material.And the embodiment as Fig. 2, Fig. 3 B and Fig. 3 D,
When reference electrode 50 and auxiliary electrode 70 are integrated among electrode test piece 10, reference electrode 50 can print shape using elargol
Become, auxiliary electrode 70 can be formed, also can be adopted platinum using carbon paste, graphite glue printing.It is, reference electrode 50 and first
Working electrode 13 and the second working electrode 15 are different conductive materials, and auxiliary electrode 70 and the first working electrode 13 and second
Working electrode 15 can be identical or different conductive material.
In addition, referring to Fig. 3 E, the upper schematic diagram of electrode test piece the 5th embodiment.As shown in FIGURE 3 E, the 5th embodiment is
This is the change of the first embodiment of Fig. 3 A, and its difference is the second line part 153 and the tertiary circuit of the second working electrode 15
Portion 155 can not be on the same axis in position, however, the second line part 153 and tertiary circuit portion 155 still almost parallel first line portion
133.
Refering to Fig. 4, the cross-sectional schematic of 5-5 ' hatching in Fig. 3 A.As shown in figure 4, the first working electrode 13 and the second work
Make electrode 15 to be embedded in substrate 11.Embedded mode can be to form multiple grooves on a surface of substrate 11, by printing
Mode, such as roller coat, conductive material are formed in groove so that forming the first working electrode 13 and the second work in the trench
Electrode 15.It is, can be seen that the first working electrode 13 and the second working electrode 15 are located at groove from final product, and
It is embedded in substrate 11.By embedded mode, when being avoided that electrode test piece 10 is subject to external force, the first working electrode 13 or the second work
Make electrode 15 to peel off from substrate 11, and cause to sense the problem that area changes, and be able to maintain that stablizing of electrode test piece 10 sensing
Property and accuracy.
Refering to Fig. 5 A to 5C, be in Fig. 3 B 6-6 ' hatching first embodiment to 3rd embodiment generalized section.As
Shown in Fig. 5 A to 5C, in the electrode integrating the first working electrode 13, the second working electrode 15, reference electrode 50 and auxiliary electrode 70
Test piece 10, the mode of its stacking can have different embodiments, for example, as shown in Fig. 5 A and Fig. 5 B, the first working electrode
13rd, the second working electrode 15, reference electrode 50 and auxiliary electrode 70 are generally aligned in the same plane, and wherein Fig. 5 A is in the surface shape of substrate 11
Become groove, so that the first working electrode 13, the second working electrode 15, reference electrode 50 and auxiliary electrode 70 is located among groove, and
It is embedded in substrate 11.As shown in Figure 5 B, the first working electrode 13, the second working electrode 15, reference electrode 50 and auxiliary electrode 70
Surface positioned at substrate 11.As shown in Figure 5 C, the first working electrode 13 of the embodiment of Fig. 5 C and the second working electrode 15 are located at
It is embedded in groove in substrate 11, reference electrode 50 and auxiliary electrode 70 are reference electrode on a surface of substrate 11
50 and auxiliary electrode 70 and the first working electrode 13 and the second working electrode 15 there is a difference in height.
Based on above-mentioned content it is to be understood that electrode test piece comprises the first working electrode and the second working electrode, with
The part in the corresponding first line portion in the gap between the second line part and tertiary circuit portion, control unit in second working electrode
By the signal value of the second line part and the sensing in tertiary circuit portion, the signal value of the first working electrode can be corrected, from
And the error that insulating barrier printing can be overcome to offset, maintain the signal value stabilization that electrode test piece can sense, and then be able to maintain that
The stability of experiment or sensing and concordance are it is ensured that the reliability of sensing value.
Although preferred embodiment disclosure is as described above, but it is not limited to the present invention, any those skilled in the art
Member, without departing from the scope of the present invention, when making a little change and modification, the therefore scope of patent protection of the present invention must regard
This specification appending claims protection domain defined person be defined.
Claims (11)
1. a kind of sensing device further is it is characterised in that include：
One electrode test piece, including：
One substrate；
One first working electrode, on this substrate, comprises the one of a first line portion and this first line portion of electric property coupling
One output pad；
One second working electrode, on this substrate, comprise one second line part, a tertiary circuit portion and electric property coupling this second
Line part and the one second output pad in this tertiary circuit portion, this second line part and this tertiary circuit portion are at a distance of a gap；And
One insulating barrier, covers at least a portion, at least a portion of this second line part and the 3rd line in this first line portion
At least a portion in road portion, this insulating barrier defines an opening and makes this gap and at least of this insulating barrier at least unmasked portion
This first line portion corresponding to this partial gap；
One reference electrode；
One auxiliary electrode；And
One control unit, this first output pad of electric property coupling, this second output pad, this reference electrode and this auxiliary electrode, this control
Unit processed is in order to provide a predetermined voltage level to this reference electrode, and detects one first signal that this first working electrode provides
Value and this second working electrode provide a secondary signal value, this control unit also in order to according to this first signal value and this second
The difference of signal value, exports a sensing value.
2. sensing device further as claimed in claim 1 is it is characterised in that this opening has a relative first side and one second
Side, this first side and is somebody's turn to do across this first line portion across this first line portion and this second line part, this second side
Tertiary circuit portion, the bearing of trend of this second line part defines one first axially, and the vertical direction of this first axial direction defines one the
Two axially, and the end that this second line part is located in this opening defines a tangent line, this tangent line parallel this second axially, trim this
End that two circuit portions are located in this opening and cut through this first line portion, this first line portion be located at this tangent line and this
Area between one side is substantially equal to end in this opening for this second line part and the face between this first side
Long-pending.
3., it is characterised in that this second working electrode also comprises a connecting portion, this is even for sensing device further as claimed in claim 2
This second line part of socket part electric property coupling and this tertiary circuit portion, this insulating barrier covers this connecting portion.
4. sensing device further as claimed in claim 3 is it is characterised in that this insulating barrier has a side portion, positioned at this substrate
Side, and this side portion be located between this first side and this second side, this side portion covers at least of this connecting portion
Point.
5., it is characterised in that a surface of this substrate comprises multiple grooves, this for sensing device further as claimed in claim 1 or 2
One working electrode and this second working electrode are located in this groove, and this reference electrode and this auxiliary electrode are located at this table of this substrate
On face, with this first working electrode and this second working electrode, there is a difference in height.
6. a kind of electrode test piece is it is characterised in that comprise：
One substrate；
One first working electrode, on this substrate, comprises a first line portion；
One second working electrode, on this substrate, comprises one second line part and a tertiary circuit portion, this second line part and
This tertiary circuit portion is at a distance of a gap；And
One insulating barrier, covers at least a portion, at least a portion of this second line part and the 3rd line in this first line portion
At least a portion in road portion, this insulating barrier defines an opening and makes this gap of this insulating barrier at least unmasked portion, and does not cover
This first line portion corresponding to this gap of cover.
7. electrode test piece as claimed in claim 6 is it is characterised in that this opening has a relative first side and one second
Side, this first side and is somebody's turn to do across this first line portion across this first line portion and this second line part, this second side
Tertiary circuit portion, the bearing of trend of this second line part defines one first axially, and the vertical direction of this first axial direction defines one the
Two axially, and the end that this second line part is located in this opening defines a tangent line, this tangent line parallel this second axially, trim this
End that two circuit portions are located in this opening and cut through this first line portion, this first line portion be located at this tangent line and this
Area between one side is substantially equal to end in this opening for this second line part and the face between this first side
Long-pending.
8. electrode test piece as claimed in claims 6 or 7, should it is characterised in that this second working electrode also comprises a connecting portion
This second line part of connecting portion electric property coupling and this tertiary circuit portion, this insulating barrier covers this connecting portion.
9. electrode test piece as claimed in claims 6 or 7, should it is characterised in that also comprising a reference electrode and an auxiliary electrode
Reference electrode and this auxiliary electrode are arranged on this substrate, and this second working electrode and this reference electrode are located at this first work respectively
Make the opposite sides of electrode, this second working electrode and this auxiliary electrode are respectively positioned at the opposite sides of this first working electrode.
10. a kind of sensing device further is it is characterised in that comprise：
One substrate；
One first working electrode, on this substrate, comprises a first line portion, in order to produce one first according to a tested target
Signal value；
One second working electrode, on this substrate, in order to produce a secondary signal value according to this tested target, this second work
Electrode package contains one second line part and a tertiary circuit portion, and this second line part and this tertiary circuit portion are at a distance of a gap；And
One insulating barrier, covers at least a portion, at least a portion of this second line part and the 3rd line in this first line portion
At least a portion in road portion, wherein this second working electrode also comprise a connecting portion, this second circuit of this connecting portion electric property coupling
Portion and this tertiary circuit portion, this insulating barrier covers this connecting portion.
11. sensing device furthers as claimed in claim 10 it is characterised in that also comprising a control unit, electric property coupling this first
Working electrode and this second working electrode, this control unit is in order to receive this first signal value and this secondary signal value, and root
Difference according to this first signal value and this secondary signal value produces a sensing value.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105125213 | 2016-08-08 | ||
| TW105125213A TWI589869B (en) | 2016-08-08 | 2016-08-08 | Sensing Device and Electrode Strip thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106383157A true CN106383157A (en) | 2017-02-08 |
| CN106383157B CN106383157B (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610934359.5A Expired - Fee Related CN106383157B (en) | 2016-08-08 | 2016-11-01 | Sensing device and electrode test piece thereof |
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| Country | Link |
|---|---|
| CN (1) | CN106383157B (en) |
| TW (1) | TWI589869B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA3088599C (en) * | 2019-08-02 | 2023-01-10 | Bionime Corporation | Micro biosensor and measuring method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030042150A1 (en) * | 2000-03-22 | 2003-03-06 | Jun-Oh Ryu | Electrochemical biosensor test strip with recognition electrode and readout meter using this test strip |
| TWI239396B (en) * | 2001-06-29 | 2005-09-11 | Gen Life Biotechnology Co Ltd | A fabrication method of chemically modified screen printed electrode and electrochemical testing application thereof |
| CN1668916A (en) * | 2002-09-30 | 2005-09-14 | 因福皮亚有限公司 | Apparatus and method for measuring reaction result of samples on biosensor |
| CN201203615Y (en) * | 2008-05-16 | 2009-03-04 | 五鼎生物技术股份有限公司 | Biochemical sensing system, measuring apparatus and biochemical sensing test piece |
| CN104380095A (en) * | 2012-06-01 | 2015-02-25 | 爱-森斯株式会社 | Electrochemical biosensor with improved accuracy |
| CN104603281A (en) * | 2012-09-07 | 2015-05-06 | 生命扫描苏格兰有限公司 | Electrochemical-based analytical test strip with bare interferent electrodes |
-
2016
- 2016-08-08 TW TW105125213A patent/TWI589869B/en not_active IP Right Cessation
- 2016-11-01 CN CN201610934359.5A patent/CN106383157B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030042150A1 (en) * | 2000-03-22 | 2003-03-06 | Jun-Oh Ryu | Electrochemical biosensor test strip with recognition electrode and readout meter using this test strip |
| TWI239396B (en) * | 2001-06-29 | 2005-09-11 | Gen Life Biotechnology Co Ltd | A fabrication method of chemically modified screen printed electrode and electrochemical testing application thereof |
| CN1668916A (en) * | 2002-09-30 | 2005-09-14 | 因福皮亚有限公司 | Apparatus and method for measuring reaction result of samples on biosensor |
| CN201203615Y (en) * | 2008-05-16 | 2009-03-04 | 五鼎生物技术股份有限公司 | Biochemical sensing system, measuring apparatus and biochemical sensing test piece |
| CN104380095A (en) * | 2012-06-01 | 2015-02-25 | 爱-森斯株式会社 | Electrochemical biosensor with improved accuracy |
| CN104603281A (en) * | 2012-09-07 | 2015-05-06 | 生命扫描苏格兰有限公司 | Electrochemical-based analytical test strip with bare interferent electrodes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106383157B (en) | 2018-10-12 |
| TW201805624A (en) | 2018-02-16 |
| TWI589869B (en) | 2017-07-01 |
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