CN206671459U - A kind of underwater installation detects circuit - Google Patents
A kind of underwater installation detects circuit Download PDFInfo
- Publication number
- CN206671459U CN206671459U CN201720234921.3U CN201720234921U CN206671459U CN 206671459 U CN206671459 U CN 206671459U CN 201720234921 U CN201720234921 U CN 201720234921U CN 206671459 U CN206671459 U CN 206671459U
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- China
- Prior art keywords
- circuit
- amplifier
- input
- analogue signal
- led
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- 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.)
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Abstract
The utility model proposes a kind of underwater installation to detect circuit, including singlechip control chip, is connected with two groups of input signal circuits on the input pin of the singlechip control chip, the first LED and the second LED are connected on output pin；The input signal circuit includes analogue signal circuit, amplifying circuit is connected with the analogue signal circuit, the amplifying circuit includes amplifier, two input pins of the amplifier are connected with analogue signal circuit respectively, the cathode voltage value of the amplifier then exports high level higher than negative battery voltage, this detection circuit is by simulating difference water and short-circuit resistance value, when the positive pole input value of amplifier is higher than negative pole input value, it is bright to export LED corresponding to high level control, to judge whether short circuit and judge the type of short circuit, Detection results are good.
Description
Technical field
It the utility model is related to underwater sensing devices field, more particularly to underwater installation detection circuit.
Background technology
Some usual underwater installations, if encapsulating bad the problems such as easily causing internal short-circuit, have a strong impact on use, help to set
Standby damage, typically has two kinds of situations, and the short circuit of circuit self problem and leak short circuit, traditional equipment can normally only detect together
One short circuit problem, it can not judge specifically which kind of reason causes, and Detection results are poor.
Utility model content
In order to solve the above technical problems, the utility model proposes a kind of underwater installation to detect circuit, including single-chip microcomputer control
Coremaking piece, two groups of input signal circuits are connected with the input pin of the singlechip control chip, are connected on output pin
First LED and the second LED；The input signal circuit includes analogue signal circuit, is connected on the analogue signal circuit
Have an amplifying circuit, the amplifying circuit includes amplifier, two input pins of the amplifier respectively with analogue signal circuit
Connection, the cathode voltage value of the amplifier then export high level higher than negative battery voltage.
Preferably, the analogue signal circuit includes relay, and two input terminals are connected with the relay.
The utility model proposes underwater installation detection circuit have following beneficial effect：This detection circuit is distinguished by simulating
Water and the resistance value of short circuit, when the positive pole input value of amplifier is higher than negative pole input value, LED corresponding to output high level control
Lamp is bright, and to judge whether short circuit and judge the type of short circuit, Detection results are good.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described.
Fig. 1 is circuit connection diagram of the present utility model；
Wherein, 1- singlechip control chips, 2- analogue signal circuits, 3- input signal circuits, the LEDs of 4- first, 5-
Two LEDs.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe.
As shown in figure 1, the utility model proposes a kind of underwater installation to detect circuit, including singlechip control chip 1, institute
State and two groups of input signal circuits 3 are connected with the input pin of singlechip control chip 1, the first LED is connected on output pin
The LED 5 of lamp 4 and second；The input signal circuit 3 includes analogue signal circuit 2, is connected with the analogue signal circuit 2
Amplifying circuit, the amplifying circuit include amplifier, and two input pins of the amplifier connect with analogue signal circuit 2 respectively
Connect, the cathode voltage value of the amplifier then exports high level higher than negative battery voltage.
Preferably, the analogue signal circuit 2 includes relay, and two input terminals are connected with the relay.
Specific works mode of the present utility model is divided into not short-circuit condition and short-circuit condition, and short-circuit condition is divided into leak and caused
Short circuit and itself short circuit cause, and two parts input signal circuit 3 includes the scope of detection different resistance values, Part I detection electricity
Road can measuring resistance scope be 0 to 700 kilo-ohms, connected when detection terminal short circuit or by water, different resistance input values is only capable of touching
Hair one amplifying circuit output low level, after Part I detection electric circuit inspection termination is logical, LM311 output pins by high step-down,
Corresponding first LED 4 is bright, illustrates to access resistance within the range, and Part II detection resistance value scope is 0 to 1 kilo-ohm, the inspection
After slowdown monitoring circuit output pin is by high step-down, corresponding second LED 5 is bright, illustrates to access resistance range at 0-1 kilo-ohms.
Specifically, the resistance value of water is more than 100 kilo-ohms less than 500 kilo-ohms, and short-circuit resistance very little, within 1 kilo-ohm；
Wherein analogue signal circuit 2 by the resistance of relay simulation water and the corresponding resistance of itself short circuit, when simulation by
When leak water detdction, U2 circuit is turned on, 3 pin signals of amplifier realize the first LED 4 higher than 2 pin signal output low levels
It is bright, that is, it is judged as leak short circuit；
When two connecting pins of relay bottom, the conducting of U3 corresponding circuits, corresponding second LED 5 is bright, then is judged as certainly
Body short circuit.
A variety of modifications to embodiment will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (2)
1. a kind of underwater installation detects circuit, it is characterised in that including singlechip control chip, the singlechip control chip
Two groups of input signal circuits are connected with input pin, the first LED and the second LED are connected on output pin；It is described defeated
Entering signal circuit includes analogue signal circuit, amplifying circuit is connected with the analogue signal circuit, the amplifying circuit includes
Amplifier, two input pins of the amplifier are connected with analogue signal circuit respectively, and the cathode voltage value of the amplifier is high
High level is then exported in negative battery voltage.
2. underwater installation according to claim 1 detects circuit, it is characterised in that the analogue signal circuit includes relay
Device, two input terminals are connected with the relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720234921.3U CN206671459U (en) | 2017-03-13 | 2017-03-13 | A kind of underwater installation detects circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720234921.3U CN206671459U (en) | 2017-03-13 | 2017-03-13 | A kind of underwater installation detects circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206671459U true CN206671459U (en) | 2017-11-24 |
Family
ID=60376059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720234921.3U Expired - Fee Related CN206671459U (en) | 2017-03-13 | 2017-03-13 | A kind of underwater installation detects circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206671459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443652A (en) * | 2018-12-16 | 2019-03-08 | 山西汾西重工有限责任公司 | Deep-sea aircraft promotes mainly motor water pressure test leak water detdction circuit and detection method |
-
2017
- 2017-03-13 CN CN201720234921.3U patent/CN206671459U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443652A (en) * | 2018-12-16 | 2019-03-08 | 山西汾西重工有限责任公司 | Deep-sea aircraft promotes mainly motor water pressure test leak water detdction circuit and detection method |
| CN109443652B (en) * | 2018-12-16 | 2024-04-26 | 山西汾西重工有限责任公司 | Water leakage detection circuit and detection method for hydraulic test of main thrust motor of deep sea aircraft |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20180313 |