CN208736518U - A kind of electric pole type water level improvement circuit - Google Patents
A kind of electric pole type water level improvement circuit Download PDFInfo
- Publication number
- CN208736518U CN208736518U CN201821567442.4U CN201821567442U CN208736518U CN 208736518 U CN208736518 U CN 208736518U CN 201821567442 U CN201821567442 U CN 201821567442U CN 208736518 U CN208736518 U CN 208736518U
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- Prior art keywords
- resistance
- triode
- water level
- electric pole
- type water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 241001125929 Trisopterus luscus Species 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses a kind of electric pole type water levels to improve circuit, including triode Q1, resistance R5, resistance R6 and resistance R7, it is characterized in that, one end of the collector connection resistance R4 of the triode Q1 and detection mouth Tchk, one end and ground of the emitter connection resistance R5 of triode Q1, the other end of the base stage connection resistance R5 of triode Q1 and one end of resistance R6, one end of the other end connection resistance R7 of resistance R6 and the foot 2 of interface CN2, the other end of resistance R7 connects output end Pout, and the foot 1 of interface CN2 connects ground.The utility model uses pulse detection mode, the effective resistance guaranteed between electrode, the problem for causing resistance between electrode excessive because long charged.Simultaneously because detecting electrode is detected using pulse width, reduces because of the quantity with Electro Sorb magazine, be a significant increase the water level switch service life.
Description
Technical field
The utility model relates to detection technique field, specifically a kind of electric pole type water level improves circuit.
Background technique
Electric pole type level switch is the common sensor of water detection technique field, and detection is accurate, reliable performance, therefore
The scope of application is very extensive.
But since electric conductivity of the water quality difference to water has a significant impact, the more water-quality ratio pure water of minerals is led
It is electrically much higher, and with the length of the time change of conduction time and time, the electric conductivity of water can be deteriorated.Show be exactly
The resistance at electrode both ends becomes very big, to influence measurement accuracy, causes the inaccuracy of testing result.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of electric pole type water levels to improve circuit, to solve background technique
In the problem of mentioning.
To achieve the above object, the utility model provides the following technical solutions:
A kind of electric pole type water level improvement circuit, including triode Q1, resistance R5, resistance R6 and resistance R7, which is characterized in that
The emitter connection resistance R5's of one end and detection mouth Tchk, triode Q1 of the collector connection resistance R4 of the triode Q1
One end and ground, the other end of the base stage connection resistance R5 of triode Q1 and one end of resistance R6, the other end of resistance R6 connect electricity
One end of R7 and the foot 2 of interface CN2 are hindered, the other end of resistance R7 connects output end Pout, and the foot 1 of interface CN2 connects ground.
As a preferred embodiment of the present invention: the other end of the resistance R4 connects power end.
As a preferred embodiment of the present invention: the power end is 5V DC voltage.
As a preferred embodiment of the present invention: the triode Q1 is N-type triode.
As a preferred embodiment of the present invention: the interface CN2 connection electrode formula water level sensor.
As a preferred embodiment of the present invention: the resistance R4, resistance R5, resistance R6 and resistance R7 are patch electricity
Resistance.
As a preferred embodiment of the present invention: the triode Q1 is model LM9013.
Compared with prior art, the utility model has the beneficial effects that the utility model uses pulse detection mode, effectively
Guarantee electrode between resistance, the problem for causing resistance between electrode excessive because long charged.Simultaneously because detecting electrode
It is detected, is reduced because of the quantity with Electro Sorb magazine using pulse width, be a significant increase the water level switch service life.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, embodiment 1: a kind of electric pole type water level improves circuit, including triode Q1, resistance R5, resistance R6 and
Resistance R7, as shown in Figure 1, in figure, one end of the collector connection resistance R4 of the triode Q1 and detection mouth Tchk, triode
Q1 emitter connection resistance R5 one end and ground, triode Q1 base stage connection resistance R5 the other end and resistance R6 one
End, one end of the other end connection resistance R7 of resistance R6 and the foot 2 of interface CN2, the other end of resistance R7 connect output end Pout,
The foot 1 of interface CN2 connects ground.When the electrode type water level sensor of CN2 connection has water, the pulse signal of output end Pout is direct
It draws to ground, there is no voltage between the base stage B and emitter E of triode Q1, triode is in off state, detection mouth Tchk detection
To being always high signal.When the electrode type water level sensor of interface CN2 connection is anhydrous, output end Pout output pulse signal
High level when, the voltage between the base stage B and emitter E of triode Q1 is enough turn-on transistor Q1, and detection mouth Tchk is three
It draws when pole pipe Q1 is connected to ground, so can detecte low level；When the low level of output end Pout output pulse signal, three
There is no voltage between the base stage B and emitter E of pole pipe Q1, triode Q1 is in off state, and detection mouth Tchk detects as height
Signal.Therefore detection mouth Tchk can obtain pulse in contrast according to the pulse signal of output.
Embodiment 2, on the basis of embodiment 1, resistance R4, resistance R5, resistance R6 and the resistance R7 of the design are patch
Sheet resistance, the PCB circuit board made in this way is small in size, and integrated level is high, is conducive to Integration Design.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of electric pole type water level improves circuit, including triode Q1, resistance R5, resistance R6 and resistance R7, which is characterized in that institute
State the one of one end of the collector connection resistance R4 of triode Q1 and the emitter connection resistance R5 of detection mouth Tchk, triode Q1
End and ground, the other end of the base stage connection resistance R5 of triode Q1 and one end of resistance R6, the other end of resistance R6 connect resistance
One end of R7 and the foot 2 of interface CN2, the other end of resistance R7 connect output end Pout, and the foot 1 of interface CN2 connects ground.
2. a kind of electric pole type water level according to claim 1 improves circuit, which is characterized in that the other end of the resistance R4
Connect power end.
3. a kind of electric pole type water level according to claim 2 improves circuit, which is characterized in that the power end is 5V direct current
Voltage.
4. a kind of electric pole type water level according to claim 1 improves circuit, which is characterized in that the triode Q1 is N-type
Triode.
5. a kind of electric pole type water level according to claim 1 improves circuit, which is characterized in that the interface CN2 connection electricity
Pole formula water level sensor.
6. a kind of electric pole type water level according to claim 1 improves circuit, which is characterized in that the resistance R4, resistance R5,
Resistance R6 and resistance R7 is Chip-R.
7. a kind of -6 any electric pole type water levels improve circuit according to claim 1, which is characterized in that the triode Q1
For model LM9013.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821567442.4U CN208736518U (en) | 2018-09-25 | 2018-09-25 | A kind of electric pole type water level improvement circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821567442.4U CN208736518U (en) | 2018-09-25 | 2018-09-25 | A kind of electric pole type water level improvement circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208736518U true CN208736518U (en) | 2019-04-12 |
Family
ID=66035357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821567442.4U Expired - Fee Related CN208736518U (en) | 2018-09-25 | 2018-09-25 | A kind of electric pole type water level improvement circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208736518U (en) |
-
2018
- 2018-09-25 CN CN201821567442.4U patent/CN208736518U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190412 |