CN204832417U - Ammeter is qualified for next round of competitions in wall dark line defect point and is looked for appearance - Google Patents
Ammeter is qualified for next round of competitions in wall dark line defect point and is looked for appearance Download PDFInfo
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- CN204832417U CN204832417U CN201520537703.8U CN201520537703U CN204832417U CN 204832417 U CN204832417 U CN 204832417U CN 201520537703 U CN201520537703 U CN 201520537703U CN 204832417 U CN204832417 U CN 204832417U
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- 230000007547 defect Effects 0.000 title claims abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 29
- 230000005236 sound signal Effects 0.000 claims abstract description 26
- 230000001939 inductive effect Effects 0.000 claims abstract description 20
- 230000003321 amplification Effects 0.000 claims abstract description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 24
- 238000001914 filtration Methods 0.000 claims description 12
- 230000010363 phase shift Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 6
- 230000003534 oscillatory effect Effects 0.000 description 4
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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Abstract
The utility model discloses an ammeter is qualified for next round of competitions in wall dark line defect point and is looked for appearance, including audio frequency sound production ware, inductive probe, double plug shielded wire, audio receiver, audio frequency sound production ware includes consecutive signal vibration module, signal amplification module, signal output module I, audio receiver includes consecutive signal acquisition module, signal frequency modulation module, signal output module II, signal output module I is connected with the interior trouble conduit wiring one end of wall, double plug shielded wire one end with inductive probe's signal output port connects, the other end with audio receiver's signal acquisition module is connected. Through the audio signal in the trouble conduit wiring in the inductive probe detection wall to spread into it into audio receiver, the sound power sent with audio receiver has or not and determines the fault point in the conduit wiring in the wall, and the device is simple and easy, easy operation, swift, and when having solved daily house conduit wiring and having overhauld, technical problem that the fault point is difficult to to seek.
Description
Technical field
The utility model relates to line detection apparatus, specifically a kind of ammeter outlet within the walls dark line defect point search instrument.
Background technology
Now in house decoration, people more and more prefer and electric wire are arranged to concealed wire, do not only attractive in appearance like this, and are convenient to interior decoration.But due to reasons such as wire quality are not good, construction is not good at, usually cause concealed wire circuit within the walls to occur the fault such as short circuit, open circuit, when overhauling, searching of dark line defect point usually makes people feel simply helpless within the walls.
Summary of the invention
The purpose of this utility model be to provide a kind of simple and easy, fast finding ammeter outlet within the walls dark line defect point search instrument.
The purpose of this utility model is achieved through the following technical solutions:
Instrument is searched in a kind of ammeter outlet within the walls dark line defect point, comprise voice frequency sounder, inductive probe, double plug shielding line, audio receiver, described voice frequency sounder comprises the signal oscillating module, signal amplification module, the signal output module I that are connected successively, described signal output module I is connected with fault concealed wire one end within the walls, described double plug shielding line one end is connected with the signal output of described inductive probe, and the other end is connected with the signal input of described audio receiver.
Principle of work: the sound signal that signal oscillating module is occurred, after signal amplification module amplifies, fault concealed wire is within the walls inputted by signal output module I, a sound signal field can be produced for detecting concealed wire within the walls, inductive probe takes this sound signal, input audio receiver by shielding line, audio receiver is sounded.
The course of work: first connection and locating instrument, accesses within the walls on fault recessed switch or socket by the lead-out terminal of voice frequency sounder signal output module I; Then one end of double plug shielding line is inserted the signal output of inductive probe, the other end inserts the signal input of audio receiver; Then open the switch of voice frequency sounder, sound signal passes into fault concealed wire within the walls, and forms a sound signal field; Then the lead-out terminal junction of inductive probe in fault concealed wire and signal output module I is within the walls detected, and by the sound signal taked by double plug shielding line input audio receiver, audio receiver is sounded; Then detected backward along concealed wire layout within the walls by inductive probe, when inductive probe moves on to certain position, if the sound in audio receiver reduces or disappears, then critical point is exactly trouble spot.
The utility model detects the sound signal in fault concealed wire within the walls by inductive probe, and imported into audio receiver, the sound intensity sent with audio receiver is with or without the trouble spot judged in concealed wire within the walls, device is simple and easy, simple to operate, quick, when solving the concealed wire maintenance of daily house, trouble spot is difficult to the technical matters of searching.
Further, described voice frequency sounder also comprises direct supply E1 and electric source filter circuit, and described signal oscillating module comprises three grades of RC phase-shift circuits and exchanges negative-feedback circuit, and described signal amplification module comprises common emitter amplifying circuit, and connection features is as follows:
Three grades of RC phase-shift circuits, comprise resistance R1, resistance R2, resistance R3, resistance R4, electric capacity C1, electric capacity C2 and electric capacity C3, one end of the base stage connecting resistance R3 of transistor T1, one end of resistance R4 and one end of electric capacity C3, the other end connection circuit negative pole of resistance R4, the one termination circuit ground of resistance R3, the other end of electric capacity C3 and one end of electric capacity C2, one end of resistance R2 is connected, the other end connection circuit ground of resistance R2, the other end of electric capacity C2 and one end of electric capacity C1, one end of resistance R1 is connected, the other end connection circuit ground of resistance R1, the collector of another termination transistor T1 of electric capacity C1,
Negative-feedback circuit, comprises resistance R6, electrochemical capacitor C8, one end of emitter connecting resistance R6 of transistor T1 and the negative pole of electrochemical capacitor C8, and the other end of resistance R6 and the positive pole of electrochemical capacitor C8 are with connection circuit ground;
Common emitter amplifying circuit, the collector of transistor T1 is connected with the negative pole of one end of resistance R5, electrochemical capacitor C4, the other end connection circuit negative pole of resistance R6, and sound signal exports from the positive pole of electrochemical capacitor C4, and the emitter of transistor T1 connects negative-feedback circuit;
Electric source filter circuit, comprise electrochemical capacitor C5, electric capacity C6 and electric capacity C7, one end of the negative pole of electrochemical capacitor C5 and one end of electric capacity C6 and electric capacity C7 is with connection circuit negative pole, and the other end of the positive pole of electrochemical capacitor C5 and the other end of electric capacity C6 and electric capacity C7 is with connection circuit ground.
By a signal between transistor base and collector after the phase shift of three grades of RC phase shift oscillatory circuits, vibration, meet phase condition and the amplitude requirement of oscillatory circuit, exchange the stability that negative-feedback circuit adds common emitter amplifying circuit, the antijamming capability of electric source filter circuit intensifier circuit, so can realize the voice frequency sounder that single transistor is made, its circuit is simple, stable performance, cheap, reduce line maintenance cost.
Further, audio receiver described in described audio receiver comprises the signal acquisition module, signal FM module, the signal output module II that are connected successively, also comprise direct supply E2, described signal acquisition module comprises audio signal sample circuit, described signal FM module comprises detecting circuit and filtering circuit, and connection features is as follows:
Audio signal sample circuit, comprise transistor T2, transistor T3, resistance R9, electric capacity C9, sound signal inputs from the base stage of transistor T2, the base stage of transistor T2 is connected with the collector of transistor T3, and electric capacity C9 and resistance R9 mutually connects and is connected between the collector of transistor T3 and circuit ground;
Detecting circuit, comprise operational amplifier F1, resistance R10, diode D1, diode D2, the collector of described resistance R10 mono-termination transistor T3, the inverting input of another termination operational amplifier F1, the collector of described diode D1 mono-termination transistor T3, the output terminal of another termination operational amplifier F1, the described reverse input end of diode D2 mono-termination operational amplifier F1, the output terminal of another termination operational amplifier F1, the connection circuit of the input end in the same way ground of operational amplifier F1;
Filtering circuit, comprise operational amplifier F2, resistance R11, resistance R12, resistance R13, resistance R14, electric capacity C10, electric capacity C11, electric capacity C12, the reverse input end of operational amplifier F1 described in resistance R11 mono-termination, the other end is series capacitance C10 successively, resistance R12, resistance R14, another termination of resistance R14 calculates the in-phase input end of amplifier F2, resistance R13 mono-end is connected between electric capacity C10 and resistance R12, other end connection circuit ground, electric capacity C11 mono-end is connected between resistance R12 and resistance R14, the output terminal of another termination operational amplifier F2, the in-phase input end of electric capacity C12 mono-termination operational amplifier F2, other end connection circuit ground, the inverting input of operational amplifier F2 is connected with output terminal,
Audio signal sample circuit, filtering circuit, detecting circuit are integrated in one, circuit structure is simple, the components and parts selecting cost low, effective carry out circuit design, anti-interference function is achieved with less components and parts, also have the circuit of low-pass filtering function as filtering circuit with both having high pass filter function, noise reduction effect is fairly obvious, with low cost, compact, cost performance is higher.
Further, the base stage of described transistor T2 is connected with pull-up resistor R7, and the base stage of described transistor T3 is connected with pull-up resistor R8, improves the overall performance of signal acquisition module thus.
Further, described signal output module II comprises portable speaker or earphone, and concealed wire layout scope is comparatively wide within the walls, and locus variation is very large, with portable speaker or earphone as audio receiver, convenient operation person detects along concealed wire layout flexibly, easily.
The beneficial effects of the utility model:
The utility model structure is simple, easy and simple to handle, quick, and when solving the concealed wire maintenance of daily house, trouble spot is difficult to the technical matters of searching; In addition, the utility model simple structure, manufacturing cost is lower, stable work in work, and looking up the fault point is very fast, saves the holistic cost of line maintenance.
Accompanying drawing explanation
Fig. 1 is that each parts of a kind of embodiment of the utility model connect block diagram;
Fig. 2 is embodiment 2 sound intermediate frequency sounder circuit figure;
Fig. 3 is embodiment 3 sound intermediate frequency receiver schematic diagram.
In figure, 1-voice frequency sounder, 2-inductive probe, 3-double plug shielding line, 4-audio receiver, 5 fault concealed wires within the walls, 11-signal oscillating module, 12-signal amplification module, 13-signal output module I, 41-signal acquisition module, 42-signal FM module, 43-signal output module II.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1, instrument is searched in a kind of ammeter outlet within the walls dark line defect point, it is characterized in that: comprise voice frequency sounder 1, inductive probe 2, double plug shielding line 3, audio receiver 4, described voice frequency sounder 1 comprises the signal oscillating module 11, signal amplification module 12, the signal output module I 13 that are connected successively, described signal output module I 13 is connected with fault concealed wire 5 one end within the walls, described double plug shielding line 3 one end is connected with the signal output of described inductive probe 2, and the other end is connected with the signal input of described audio receiver 4.
During use, first connection and locating instrument, accesses within the walls on fault concealed wire 5 switch or socket by the lead-out terminal of voice frequency sounder 1 signal output module I 13; Then one end of double plug shielding line 3 is inserted the signal output of inductive probe 2, the other end inserts audio receiver 4 signal input; Then open the switch of voice frequency sounder 1, sound signal passes into fault concealed wire 5 within the walls, and forms a sound signal field; Detected in the lead-out terminal junction of fault concealed wire within the walls 5 with signal output module I 13 by inductive probe 2, and the sound signal collected is inputted audio receiver 4 by double plug shielding line 3, audio receiver 4 is sounded; Then detected backward along fault concealed wire 5 layout within the walls by inductive probe 2, when inductive probe moves on to certain position, if the sound in audio receiver reduces or disappears, then critical point is exactly trouble spot.
The sound signal in fault concealed wire 5 is within the walls detected by inductive probe 2, and imported into audio receiver 4, the sound intensity sent with audio receiver 4 is with or without the trouble spot judged in concealed wire 5 within the walls, device is simple and easy, simple to operate, quick, when solving the concealed wire maintenance of daily house, trouble spot is difficult to the technical matters of searching.
Embodiment 2:
As shown in Figure 1 and Figure 2, on the basis of embodiment 1, audio receiver 4 described in described voice frequency sounder 1 comprises the signal acquisition module 41, signal FM module 42, the signal output module II 43 that are connected successively, also comprise direct supply E1 and electric source filter circuit, described signal oscillating module 11 comprises three grades of RC phase-shift circuits and exchanges negative-feedback circuit, described signal amplification module 12 comprises common emitter amplifying circuit, and connection features is as follows:
Three grades of RC phase-shift circuits, comprise resistance R1, resistance R2, resistance R3, resistance R4, electric capacity C1, electric capacity C2 and electric capacity C3, one end of the base stage connecting resistance R3 of transistor T1, one end of resistance R4 and one end of electric capacity C3, the other end connection circuit negative pole of resistance R4, the one termination circuit ground of resistance R3, the other end of electric capacity C3 and one end of electric capacity C2, one end of resistance R2 is connected, the other end connection circuit ground of resistance R2, the other end of electric capacity C2 and one end of electric capacity C1, one end of resistance R1 is connected, the other end connection circuit ground of resistance R1, the collector of another termination transistor T1 of electric capacity C1,
Negative-feedback circuit, comprises resistance R6, electrochemical capacitor C8, one end of emitter connecting resistance R6 of transistor T1 and the negative pole of electrochemical capacitor C8, and the other end of resistance R6 and the positive pole of electrochemical capacitor C8 are with connection circuit ground;
Common emitter amplifying circuit, the collector of transistor T1 is connected with the negative pole of one end of resistance R5, electrochemical capacitor C4, the other end connection circuit negative pole of resistance R6, and sound signal exports from the positive pole of electrochemical capacitor C4, and the emitter of transistor T1 connects negative-feedback circuit;
Electric source filter circuit, comprise electrochemical capacitor C5, electric capacity C6 and electric capacity C7, one end of the negative pole of electrochemical capacitor C5 and one end of electric capacity C6 and electric capacity C7 is with connection circuit negative pole, and the other end of the positive pole of electrochemical capacitor C5 and the other end of electric capacity C6 and electric capacity C7 is with connection circuit ground.
By a signal between transistor base and collector after the phase shift of three grades of RC phase shift oscillatory circuits, vibration, meet phase condition and the amplitude requirement of oscillatory circuit, exchange the stability that negative-feedback circuit adds common emitter amplifying circuit, the antijamming capability of electric source filter circuit intensifier circuit, so can realize the voice frequency sounder that single transistor is made, its circuit is simple, stable performance, cheap, reduce line maintenance cost.
Embodiment 3:
As shown in FIG. 1 to 3, on any one of above-described embodiment basis, described audio receiver 4 also comprises direct supply E2, and described signal acquisition module 41 comprises audio signal sample circuit, described signal FM module 42 comprises detecting circuit and filtering circuit, and connection features is as follows:
Audio signal sample circuit, comprise transistor T2, transistor T3, resistance R7, resistance R8, resistance R9, electric capacity C9, sound signal inputs from the base stage of transistor T2, the base stage of transistor T2 is connected with the collector of transistor T3, resistance R7 is connected between the base stage of transistor T2 and positive source and forms pull-up resistor, resistance R8 is connected between the base stage of transistor T3 and positive source and forms pull-up resistor, and electric capacity C9 and resistance R9 mutually connects and is connected between the collector of transistor T3 and circuit ground;
Detecting circuit, comprise operational amplifier F1, resistance R10, diode D1, diode D2, the collector of described resistance R10 mono-termination transistor T3, the inverting input of another termination operational amplifier F1, the collector of described diode D1 mono-termination transistor T3, the output terminal of another termination operational amplifier F1, the described reverse input end of diode D2 mono-termination operational amplifier F1, the output terminal of another termination operational amplifier F1, the connection circuit of the input end in the same way ground of operational amplifier F1;
Filtering circuit, comprise operational amplifier F2, resistance R11, resistance R12, resistance R13, resistance R14, electric capacity C10, electric capacity C11, electric capacity C12, the reverse input end of operational amplifier F1 described in resistance R11 mono-termination, the other end is series capacitance C10 successively, resistance R12, resistance R14, another termination of resistance R14 calculates the in-phase input end of amplifier F2, resistance R13 mono-end is connected between electric capacity C10 and resistance R12, other end connection circuit ground, electric capacity C11 mono-end is connected between resistance R12 and resistance R14, the output terminal of another termination operational amplifier F2, the in-phase input end of electric capacity C12 mono-termination operational amplifier F2, other end connection circuit ground, the inverting input of operational amplifier F2 is connected with output terminal.
Audio signal sample circuit, filtering circuit, detecting circuit are integrated in one, circuit structure is simple, the components and parts selecting cost low, effective carry out circuit design, anti-interference function is achieved with less components and parts, also there is the circuit of low-pass filtering function as filtering circuit with both having high pass filter function, noise reduction effect is fairly obvious, with low cost, and cost performance is higher.
Embodiment 4:
As shown in FIG. 1 to 3, on any one of above-described embodiment basis, the signal output module II 43 of described audio receiver 4 comprises portable speaker or earphone, concealed wire layout is wider within the walls, locus variation is very large, with portable speaker or earphone as audio receiver, convenient operation person flexibly, easily along fault concealed wire 5 layout detection within the walls.
As mentioned above, then well the utility model can be realized.
Claims (5)
1. an ammeter outlet within the walls dark line defect point search instrument, it is characterized in that: comprise voice frequency sounder (1), inductive probe (2), double plug shielding line (3), audio receiver (4), described voice frequency sounder (1) comprises the signal oscillating module (11) be connected successively, signal amplification module (12), signal output module I (13), described signal output module I (13) is connected with fault concealed wire (5) one end within the walls, described double plug shielding line (3) one end is connected with the signal output of described inductive probe (2), the other end is connected with the signal input of described audio receiver (4).
2. according to claim 1 ammeter outlet within the walls dark line defect point search instrument, it is characterized in that: described voice frequency sounder (1) also comprises direct supply E1 and electric source filter circuit, described signal oscillating module (11) comprises three grades of RC phase-shift circuits and exchanges negative-feedback circuit, described signal amplification module (12) comprises common emitter amplifying circuit, and connection features is as follows:
Three grades of RC phase-shift circuits, comprise resistance R1, resistance R2, resistance R3, resistance R4, electric capacity C1, electric capacity C2 and electric capacity C3, one end of the base stage connecting resistance R3 of transistor T1, one end of resistance R4 and one end of electric capacity C3, the other end connection circuit negative pole of resistance R4, the one termination circuit ground of resistance R3, the other end of electric capacity C3 and one end of electric capacity C2, one end of resistance R2 is connected, the other end connection circuit ground of resistance R2, the other end of electric capacity C2 and one end of electric capacity C1, one end of resistance R1 is connected, the other end connection circuit ground of resistance R1, the collector of another termination transistor T1 of electric capacity C1,
Negative-feedback circuit, comprises resistance R6, electrochemical capacitor C8, one end of emitter connecting resistance R6 of transistor T1 and the negative pole of electrochemical capacitor C8, and the other end of resistance R6 and the positive pole of electrochemical capacitor C8 are with connection circuit ground;
Common emitter amplifying circuit, the collector of transistor T1 is connected with the negative pole of one end of resistance R5, electrochemical capacitor C4, the other end connection circuit negative pole of resistance R6, and sound signal exports from the positive pole of electrochemical capacitor C4, and the emitter of transistor T1 connects negative-feedback circuit;
Electric source filter circuit, comprise electrochemical capacitor C5, electric capacity C6 and electric capacity C7, one end of the negative pole of electrochemical capacitor C5 and one end of electric capacity C6 and electric capacity C7 is with connection circuit negative pole, and the other end of the positive pole of electrochemical capacitor C5 and the other end of electric capacity C6 and electric capacity C7 is with connection circuit ground.
3. according to claim 1 or 2 ammeter outlet within the walls dark line defect point search instrument, it is characterized in that: described audio receiver (4) comprises the signal acquisition module (41), signal FM module (42), the signal output module II (43) that are connected successively, also comprise direct supply E2, described signal acquisition module (41) comprises audio signal sample circuit, described signal FM module (42) comprises detecting circuit and filtering circuit, and connection features is as follows:
Audio signal sample circuit, comprise transistor T2, transistor T3, resistance R9, electric capacity C9, sound signal inputs from the base stage of transistor T2, the base stage of transistor T2 is connected with the collector of transistor T3, and electric capacity C9 and resistance R9 mutually connects and is connected between the collector of transistor T3 and circuit ground;
Detecting circuit, comprise operational amplifier F1, resistance R10, diode D1, diode D2, the collector of described resistance R10 mono-termination transistor T3, the inverting input of another termination operational amplifier F1, the collector of described diode D1 mono-termination transistor T3, the output terminal of another termination operational amplifier F1, the described reverse input end of diode D2 mono-termination operational amplifier F1, the output terminal of another termination operational amplifier F1, the connection circuit of the input end in the same way ground of operational amplifier F1;
Filtering circuit, comprise operational amplifier F2, resistance R11, resistance R12, resistance R13, resistance R14, electric capacity C10, electric capacity C11, electric capacity C12, the reverse input end of operational amplifier F1 described in resistance R11 mono-termination, the other end is series capacitance C10 successively, resistance R12, resistance R14, another termination of resistance R14 calculates the in-phase input end of amplifier F2, resistance R13 mono-end is connected between electric capacity C10 and resistance R12, other end connection circuit ground, electric capacity C11 mono-end is connected between resistance R12 and resistance R14, the output terminal of another termination operational amplifier F2, the in-phase input end of electric capacity C12 mono-termination operational amplifier F2, other end connection circuit ground, the inverting input of operational amplifier F2 is connected with output terminal.
4. according to claim 3 ammeter outlet within the walls dark line defect point search instrument, it is characterized in that: the base stage of described transistor T2 is connected with pull-up resistor R7, the base stage of described transistor T3 is connected with pull-up resistor R8.
5. according to claim 1 or 2 ammeter outlet within the walls dark line defect point search instrument, it is characterized in that: described signal output module II (43) comprises loudspeaker or earphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520537703.8U CN204832417U (en) | 2015-07-23 | 2015-07-23 | Ammeter is qualified for next round of competitions in wall dark line defect point and is looked for appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520537703.8U CN204832417U (en) | 2015-07-23 | 2015-07-23 | Ammeter is qualified for next round of competitions in wall dark line defect point and is looked for appearance |
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| Publication Number | Publication Date |
|---|---|
| CN204832417U true CN204832417U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520537703.8U Active CN204832417U (en) | 2015-07-23 | 2015-07-23 | Ammeter is qualified for next round of competitions in wall dark line defect point and is looked for appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204832417U (en) |
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2015
- 2015-07-23 CN CN201520537703.8U patent/CN204832417U/en active Active
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