CN103675058A - Plate electrode of miniature sensor - Google Patents
Plate electrode of miniature sensor Download PDFInfo
- Publication number
- CN103675058A CN103675058A CN201310646437.8A CN201310646437A CN103675058A CN 103675058 A CN103675058 A CN 103675058A CN 201310646437 A CN201310646437 A CN 201310646437A CN 103675058 A CN103675058 A CN 103675058A
- Authority
- CN
- China
- Prior art keywords
- layer
- electrode
- electrode layer
- lead plate
- battery lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention relates to an electrode plate of a miniature sensor. As everyone knows, due to the characteristics of methanol gasoline, an electrode layer in direct contact with the methanol gasoline can cause electric leakage, resulting in decrease of capacitor quality factor, working failure or great measurement error of the electrode, and reduction in sensitivity of the electrode plate; besides, and a metal rod sensor is difficult for processing and high in cost. The plate electrode of miniature sensor includes a plate electrode body, which is characterized in that: the plate electrode body comprises an anticorrosion layer, an electrode layer and an equipotential layer arranged from the top to the bottom, and the bottom and the side of the plate electrode body are provided with shielding layers; the electrode layer, the equipotential layer and the shielding layer are respectively provided with pads, and the electrode layer is connected with the shielding layer through the pads. The invention can be used for detection of any liquid medium, and has the advantages of simple structure, small volume and easiness for carrying.
Description
Technical field
the present invention relates to a kind of sensor, especially a kind of battery lead plate of microsensor.
Background technology
Existing microsensor mostly is uses metal metal bar, obtains two ends battery lead plate is set at metal bar, when detecting, battery lead plate is inserted in liquid and is detected.The well-known characteristic due to methanol gasoline, electrode layer directly contacts and can cause electric leakage etc. with methanol gasoline, electric capacity quality factor are declined, cause electrode to be difficult to work or cause very large measuring error, the sensitivity that also causes battery lead plate, and the bar-shaped sensor processing of metal is more difficult, cost is also higher.
Summary of the invention
The battery lead plate that the object of this invention is to provide a kind of highly sensitive and easy-operating microsensor of small volume.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of battery lead plate of microsensor, comprise battery lead plate body, it is characterized in that: described battery lead plate body comprises anticorrosive coat, electrode layer and the equipotential layer setting gradually from top to bottom, and bottom and the sidepiece of described battery lead plate body are provided with screen layer; On described electrode layer, equipotential layer and screen layer, be respectively arranged with pad, electrode layer is connected with screen layer by pad.
On described electrode layer and equipotential layer, be respectively arranged with two pads.
Described external circuits comprises multivibrator, driving and current rectifying and wave filtering circuit, differential amplification and driving circuit and operational amplifier; One side joint ground of described screen layer, opposite side is connected with electrode layer by pad, electrode layer is connected with the input end of multivibrator and operational amplifier respectively by pad, equipotential layer is connected with the output terminal of operational amplifier by pad, the other end ground connection of operational amplifier, described multivibrator, driving are connected with driving circuit successively with current rectifying and wave filtering circuit, differential amplification.
Compared with prior art, the present invention has following beneficial effect: each of battery lead plate of the present invention layer is concentric structure, and spacing is little, and area of detection is larger like this, handling ease; Anticorrosive coat can be avoided because electrode layer is in direct contact with it, causing electric leakage that electric capacity quality factor are declined in oil product testing process, eliminated measuring error, highly sensitive, the present invention can be used for the detection of any liquid medium, simple in structure, small volume portably uses conveniently.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is battery lead plate and external circuits connection diagram.
Wherein: 1-anticorrosive coat, 2-electrode layer; 3-equipotential layer; 4-screen layer; 5-pad; 6-multivibrator; 7-drives and current rectifying and wave filtering circuit; 8-differential amplification and driving circuit; 9-tunable capacitor; 10-operational amplifier.
Embodiment
Below in conjunction with embodiment, the present invention will be described in detail.
Referring to Fig. 1, a kind of battery lead plate of microsensor, comprises battery lead plate body, and battery lead plate body comprises anticorrosive coat 1, electrode layer 2 and the equipotential layer 3 setting gradually from top to bottom, and the bottom of battery lead plate body and sidepiece are provided with screen layer 4; On electrode layer 2, equipotential layer 3 and screen layer 4, be respectively arranged with pad 5; On electrode layer 2 and equipotential layer 3, be respectively arranged with two pads 5, electrode layer 2 is connected with screen layer 4 by pad.
External circuits comprises multivibrator 6, driving and current rectifying and wave filtering circuit 7, differential amplification and driving circuit 8 and operational amplifier 9; One side joint ground of described screen layer 4, opposite side is connected with electrode layer 2 by pad, electrode layer 2 is connected with the input end of operational amplifier 9 with multivibrator 6 respectively by pad, equipotential layer 3 is connected with the output terminal of operational amplifier 9 by pad, the other end ground connection of operational amplifier 9, described multivibrator 6, driving are connected with driving circuit 8 successively with current rectifying and wave filtering circuit 7, differential amplification.
Claims (3)
1. the battery lead plate of a microsensor, comprise battery lead plate body, it is characterized in that: described battery lead plate body comprises anticorrosive coat (1), electrode layer (2) and the equipotential layer (3) setting gradually from top to bottom, and the bottom of described battery lead plate body and sidepiece are provided with screen layer (4); On described electrode layer (2), equipotential layer (3) and screen layer (4), be respectively arranged with pad (5); Electrode layer (2) is connected with screen layer (4) by pad (5).
2. the battery lead plate of microsensor according to claim 1, is characterized in that: on described electrode layer (2) and equipotential layer (3), be respectively arranged with two pads (5).
3. the battery lead plate of microsensor according to claim 1 and 2, is characterized in that: described external circuits comprises multivibrator (6), driving and current rectifying and wave filtering circuit (7), differential amplification and driving circuit (8) and operational amplifier (9); One side joint ground of described screen layer (4), opposite side is connected with electrode layer (2) by pad, electrode layer (2) is connected with the input end of operational amplifier (9) with multivibrator (6) respectively by pad, equipotential layer (3) is connected with the output terminal of operational amplifier (9) by pad, the other end ground connection of operational amplifier (9), described multivibrator (6), driving are connected with driving circuit (8) successively with current rectifying and wave filtering circuit (7), differential amplification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310646437.8A CN103675058A (en) | 2013-12-06 | 2013-12-06 | Plate electrode of miniature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310646437.8A CN103675058A (en) | 2013-12-06 | 2013-12-06 | Plate electrode of miniature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103675058A true CN103675058A (en) | 2014-03-26 |
Family
ID=50313257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310646437.8A Pending CN103675058A (en) | 2013-12-06 | 2013-12-06 | Plate electrode of miniature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103675058A (en) |
-
2013
- 2013-12-06 CN CN201310646437.8A patent/CN103675058A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103257263B (en) | Contactless duplex frequency voltage measuring device | |
| CN101975603B (en) | Liquid level detector | |
| CN103675460A (en) | Measurement device of capacitive coupling type non-contact conductance based on phase-sensitive demodulation and method thereof | |
| CN105954340B (en) | Electrical signal collection and transmitting device for flat working electrode | |
| CN106248240B (en) | A kind of temperature transmitter with temperature-compensating | |
| CN206497148U (en) | Isolated ac high voltage signal deteching circuit | |
| CN104132970A (en) | High-precision sensor for detecting ferromagnetic particles in lubricating oil | |
| CN101226089A (en) | Flexible one point force sheet type sensor and production method | |
| CN101551268A (en) | Piezoelectric type infrasonic sensor capable of offsetting mechanical vibration signals | |
| CN101034156B (en) | Piezoelectric infrasonic wave sensor capable of canceling mechanical oscillation signal | |
| CN107576854A (en) | A kind of interdigital concentric circles MEMS low conductivities sensor of band and application method | |
| CN105092805A (en) | Water quality detection system based on in-situ pore water collecting water column | |
| CN203870098U (en) | Electrode plate of micro-sensor | |
| CN103675058A (en) | Plate electrode of miniature sensor | |
| CN203479883U (en) | Reference voltage pull-type signal acquisition circuit of electrical fire monitoring detector | |
| US9255852B2 (en) | Vibration and dynamic acceleration sensing using capacitors | |
| CN207439502U (en) | A kind of water level sensor based on friction electric induction | |
| CN202956435U (en) | Liquid conductance detecting circuit | |
| CN204718634U (en) | A kind of pick-up unit towards ultrasonic sensor and system | |
| CN104076406A (en) | Small-signal processing circuit for micro-resistivity scanning imaging | |
| CN102928487A (en) | Plate-type working electrode and method for manufacturing same | |
| CN103968995B (en) | Based on the fluid pressure sensor of elasticity pressure measurement | |
| CN105628887A (en) | Water quality monitoring terminal signal amplification circuit | |
| CN204517785U (en) | A kind of electrode power supply and measurement Special thick film circuit | |
| CN206300918U (en) | A kind of amplifying circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |