CN207263597U - A kind of circuit connection structure of corrosion monitor selecting switch - Google Patents
A kind of circuit connection structure of corrosion monitor selecting switch Download PDFInfo
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- CN207263597U CN207263597U CN201721305085.XU CN201721305085U CN207263597U CN 207263597 U CN207263597 U CN 207263597U CN 201721305085 U CN201721305085 U CN 201721305085U CN 207263597 U CN207263597 U CN 207263597U
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- contact
- electrically connected
- selecting switch
- corrosion
- negative pole
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Abstract
The circuit connection structure of corrosion monitor selecting switch is the utility model is related to, selecting switch positive terminal is electrically connected with constant-current source, and selecting switch negative pole end is electrically connected with ground terminal；Corrosion probe positive terminal is electrically connected with the first contact, and corrosion probe negative pole end is electrically connected with reference elements positive terminal, the second contact and the 3rd contact respectively, and reference elements negative pole end is electrically connected with the 4th contact.The utility model also has second of circuit connection structure, and the negative pole end of selecting switch is electrically connected with ground terminal；The positive terminal of corrosion probe is electrically connected with constant-current source, the first contact respectively, and the positive terminal with reference elements, the second contact and the 3rd contact are electrically connected the negative pole end of corrosion probe respectively, and the negative pole end of reference elements is electrically connected with the 4th contact.The utility model can easily control whether the voltage between measurement probe both ends and reference elements both ends, and control constant-current source swing to；It is easy to operate, implementation cost is low.
Description
Technical field
It the utility model is related to a kind of circuit connection structure, and in particular to a kind of circuit of corrosion monitor selecting switch
Connection structure.
Background technology
Corrosion monitoring technology is one of important means that prevention causes pipeline accident generation because of corrosion, it is the nothing by device
What damage detection technique and laboratory corrosiontesting method developed.In device operational process to be monitored, continuously measurement examination
Sample etch state, in order to find corrosion phenomenon in the case where not influencing the normal operation of device to be monitored, and and then
Corrosion process is disclosed, corrosion control effect is understood, judges that etch state prejudges existing hidden danger exactly, to form corrosion
The solution of problem.In all kinds of corrosion monitors, the instrument switched using selecting switch as circuit is required to, is used for
Whether the voltage between control measurement probe both ends and reference elements both ends, and control constant-current source swing to.
At present, the voltage and control perseverance between measurement probe both ends and reference elements both ends are controlled using selecting switch
When whether stream source swings to, there is circuit connection structure is complicated, the problems such as cumbersome.
The content of the invention
A kind of in order to solve the above technical problems, circuit company the utility model proposes selecting switch of corrosion monitor
Binding structure, by control selections switch different switching modes, easily regulation and control measurement probe both ends and reference elements both ends it
Between voltage, and control constant-current source whether swing to.
Technical solution is as follows used by the utility model：
A kind of circuit connection structure of corrosion monitor selecting switch, positive terminal and the constant-current source of selecting switch are electrically connected
Connect, the negative pole end of selecting switch is electrically connected with ground terminal；The positive terminal of corrosion probe is electrically connected with the first contact, corrosion probe
The positive terminal with reference elements, the second contact and the 3rd contact are electrically connected negative pole end respectively, the negative pole end of reference elements and the 4th
Contact is electrically connected.
It is permanent when selecting switch is placed in the state for connecting the first contact and the second contact based on foregoing circuit connection structure
The electric current in stream source only flows through corrosion probe, is not passed through reference elements；Selecting switch is placed in and connects the 3rd contact and the 4th contact
State when, the electric current of constant-current source only flows through reference elements, is not passed through corrosion probe.
The utility model also has second of circuit connection structure, and the negative pole end of selecting switch is electrically connected with ground terminal；Corrosion
The positive terminal of probe is electrically connected with constant-current source, the first contact respectively, the negative pole end of the corrosion probe cathode with reference elements respectively
End, the second contact and the 3rd contact are electrically connected, and the negative pole end of reference elements is electrically connected with the 4th contact.
It is permanent when selecting switch is placed in the state for connecting the first contact and the second contact based on foregoing circuit connection structure
The electric current in stream source only flows through corrosion probe, is not passed through reference elements；The 3rd contact and the 4th contact are connected when selecting switch is placed in
State when, the electric current of constant-current source simultaneously flows through corrosion probe and reference elements.
Preferably, the corrosion probe is resistance probe or inductance probe.
Preferably, the constant-current source is AC constant-current source or DC constant current power supply or current feedback circuit or high current hair
Raw device.
Preferably, the selecting switch is microswitch or toggle switch or button switch or key switch.
By the above-mentioned handover operation of selecting switch, can easily control measurement probe both ends and reference elements both ends it
Between voltage, and control constant-current source whether swing to.
The beneficial effects of the utility model：
1) the utility model can easily control the voltage between measurement probe both ends and reference elements both ends, and control
Whether constant-current source processed swings to；
2) the utility model is easy to operate, implementation cost is low.
Brief description of the drawings
Fig. 1 is the schematic diagram of circuit connection structure of the first embodiment of the utility model；
Fig. 2 is the schematic diagram of circuit connection structure of the second embodiment of the utility model；
In figure, 1- corrosion probes, 2- reference elements, 3- constant-current sources, 4- ground terminals, 5- selecting switch, 6- first
Contact, the second contacts of 7-, the 3rd contacts of 8-, the 4th contacts of 9-.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the utility model is illustrated.
Fig. 1 is the schematic diagram of circuit connection structure of the first selecting switch of the utility model, the positive terminal of selecting switch 5
It is electrically connected with constant-current source 3, the negative pole end of selecting switch 5 is electrically connected with ground terminal 4；The positive terminal of corrosion probe 1 and the first contact 6
It is electrically connected, the positive terminal with reference elements 2, the second contact 7 and the 3rd contact 8 are electrically connected the negative pole end of corrosion probe 1 respectively, ginseng
Negative pole end than element 2 is electrically connected with the 4th contact 9.
Using the circuit connection structure of above-mentioned corrosion monitor selecting switch, when selecting switch 5 is placed in connection first
During the state of 6 and second contact 7 of contact, the electric current of constant-current source 3 only flows through corrosion probe 1, is not passed through reference elements 2；Work as selection
When switch 5 is placed in the state for connecting the 3rd contact 8 and the 4th contact 9, the electric current of constant-current source 3 only flows through reference elements 2, is not passed through
Corrosion probe 1.
Fig. 2 is the schematic diagram of circuit connection structure of second of selecting switch of the utility model, the negative pole end of selecting switch 5
It is electrically connected with ground terminal 4；The positive terminal of corrosion probe 1 is electrically connected with constant-current source 3, the first contact 6 respectively, and corrosion probe 1 is born
Extremely the positive terminal with reference elements 2, the second contact 7 and the 3rd contact 8 are electrically connected respectively, the negative pole end of reference elements 2 and the
Four contacts 9 are electrically connected.
Using the circuit connection structure of above-mentioned corrosion monitor selecting switch, when selecting switch 5 is placed in connection first
During the state of 6 and second contact 7 of contact, the electric current of constant-current source 3 only flows through corrosion probe 1, is not passed through reference elements 2；Work as selection
When switch 5 is placed in the state for connecting the 3rd contact 8 and the 4th contact 9, the electric current of constant-current source 3 simultaneously flows through corrosion probe 1 and ginseng
Than element 2.
Claims (5)
- A kind of 1. circuit connection structure of corrosion monitor selecting switch, it is characterised in that the positive terminal of selecting switch (5) with Constant-current source (3) is electrically connected, and the negative pole end of selecting switch (5) is electrically connected with ground terminal (4)；The positive terminal of corrosion probe (1) is electrically connected with the first contact (6), the negative pole end of corrosion probe (1) respectively with reference elements (2) positive terminal, the second contact (7) and the electrical connection of the 3rd contact (8), the negative pole end of reference elements (2) and the 4th contact (9) electricity Connection.
- A kind of 2. circuit connection structure of corrosion monitor selecting switch, it is characterised in that the negative pole end of selecting switch (5) with Ground terminal (4) is electrically connected；The positive terminal of corrosion probe (1) is electrically connected with constant-current source (3), the first contact (6) respectively, the negative pole end of corrosion probe (1) The positive terminal with reference elements (2), the second contact (7) and the 3rd contact (8) are electrically connected respectively, the negative pole end of reference elements (2) It is electrically connected with the 4th contact (9).
- 3. a kind of circuit connection structure of corrosion monitor selecting switch according to claim 1 or 2, its feature exist In the corrosion probe (1) is resistance probe or inductance probe.
- 4. a kind of circuit connection structure of corrosion monitor selecting switch according to claim 1 or 2, its feature exist In the constant-current source (3) is AC constant-current source or DC constant current power supply or current feedback circuit or strong current generator.
- 5. a kind of circuit connection structure of corrosion monitor selecting switch according to claim 1 or 2, its feature exist In the selecting switch (5) is microswitch or toggle switch or button switch or key switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721305085.XU CN207263597U (en) | 2017-10-10 | 2017-10-10 | A kind of circuit connection structure of corrosion monitor selecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721305085.XU CN207263597U (en) | 2017-10-10 | 2017-10-10 | A kind of circuit connection structure of corrosion monitor selecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207263597U true CN207263597U (en) | 2018-04-20 |
Family
ID=61917011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721305085.XU Active CN207263597U (en) | 2017-10-10 | 2017-10-10 | A kind of circuit connection structure of corrosion monitor selecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207263597U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888092A (en) * | 2018-09-10 | 2020-03-17 | 浙江绍兴苏泊尔生活电器有限公司 | Coupling device, detection circuit and method thereof and cooking appliance |
| CN111855548A (en) * | 2020-07-21 | 2020-10-30 | 中山大学 | Monitoring probe, system and method for corrosion damage of pressure pipeline |
-
2017
- 2017-10-10 CN CN201721305085.XU patent/CN207263597U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888092A (en) * | 2018-09-10 | 2020-03-17 | 浙江绍兴苏泊尔生活电器有限公司 | Coupling device, detection circuit and method thereof and cooking appliance |
| CN111855548A (en) * | 2020-07-21 | 2020-10-30 | 中山大学 | Monitoring probe, system and method for corrosion damage of pressure pipeline |
| CN111855548B (en) * | 2020-07-21 | 2021-11-09 | 中山大学 | Monitoring probe, system and method for corrosion damage of pressure pipeline |
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