CN201035155Y - Detector for electric wire branch - Google Patents
Detector for electric wire branch Download PDFInfo
- Publication number
- CN201035155Y CN201035155Y CNU2007200688515U CN200720068851U CN201035155Y CN 201035155 Y CN201035155 Y CN 201035155Y CN U2007200688515 U CNU2007200688515 U CN U2007200688515U CN 200720068851 U CN200720068851 U CN 200720068851U CN 201035155 Y CN201035155 Y CN 201035155Y
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- CN
- China
- Prior art keywords
- signal
- circuit
- electric wire
- branch road
- wire branch
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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.)
- Expired - Lifetime
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Abstract
The utility model provides an electric wire branch detector, which comprises a signal generating circuit to generate modulated frequency signal, a signal transmitting circuit to receive the frequency signal and put the signal to the tested electricity consuming loop, a sensor to receive the signal on the electricity consuming loop, a signal processing unit to receive the sensor signal, to select the signal generated by the signal transmitting circuit and to process the signal and transfer into direct current voltage signal, a micro-processor to generate a control signal according to the amount of direct current voltage signal, and a displayer to display the indication of the amount of the signal according to the control signal of the micro-processor. The utility model provides a detection control circuit which is high reliable, with power line socket phase sequence determination, and is used for electricity line detector.
Description
Technical field
The utility model relates to a kind of detector, relates in particular to a kind of electric wire branch road detector that is used to survey the measured object (as: electric wire) of burying in the body of wall.
Background technology
The existing detector that is used to survey the electric wire branch road, the radiating circuit of its detector and detection control circuit are as shown in Figures 1 and 2.
Fig. 1 illustrates the circuit diagram of the detector radiating circuit of prior art.Wherein, produce the signal amplitude modulation of the signal of a 3950Hz with a 2-3Hz by OR-NOT circuit, the control triode is added to this signal on the electricity consumption branch road, and this triode is operated in magnifying state.
Fig. 2 illustrates the circuit diagram of the detector detection control circuit of prior art.Wherein, by LC resonant selecting frequency received signal, the multiple feedback bandpass filter that infinitely gains is carried out filtering to signal, signal is amplified again, and the LED chip for driving is sent in detection, directly controls LED, the strong and weak situation of shows signal.
Summary of the invention
The utility model provides a kind of reliability height, possesses the detection control circuit that is used for detector wire that line of electric force socket phase sequence is judged.
This electric wire branch road detector comprises the signal generating circuit that generates the frequency signal of modulating, receive this frequency signal and it is written into the signal transmission circuit in tested electricity consumption loop, reception is with the sensor of the signal on the electric line, the signal that the signal of receiving sensor, select-out signal radiating circuit send is also handled the signal processing circuit that it is changed into dc level signal to this signal, generate the microprocessor of control signal according to the size of dc level signal, according to the display of the indication of this control signal shows signal power.This electric wire branch road detector also comprises line of electric force socket phase sequence decision circuit.Signal generating circuit links to each other with signal transmission circuit, and signal generating circuit generates the signal of two different frequencies by not gate, and low frequency signal is modulated on the high-frequency signal, and signal transmission circuit is loaded into the signal that is obtained on the electric loop by triode.Wherein above-mentioned triode is high pressure resistant triode, and this triode works in the saturation region.Single " not gate " quantity on a slice " not gate " integrated circuit is more than single " rejection gate " quantity on a slice " rejection gate " integrated circuit, uses a plurality of " not gates " can make circuit working more stable.Sensor, signal processing circuit, microprocessor and display link to each other successively.Sensor receives with the signal on the electric wire, sends into signal processing circuit.Signal processing circuit is screened the signal that sensor receives, select the signal that radiating circuit is launched, and do processing such as bandpass filtering, amplification, detection through high Q value, obtain dc level signal, carry out modulus (A/D) sampling via microprocessor, the decision signal power, and by display shows signal power.Line of electric force socket phase sequence decision circuit comprises stabilivolt, and utilizes the feature of stabilivolt to realize the phase sequence judgement.
In addition, line of electric force socket phase sequence decision circuit also comprises the light emitting diode with live wire, zero line and the corresponding color of ground wire of socket.In when operation, this line of electric force socket phase sequence decision circuit according to when the live wire of front socket, zero line, line position the light emitting diode of corresponding color is lighted.
Characteristics of the present utility model are: the first, and in the signal transmission circuit, high pressure resistant triode is on off state, is operated in the steady operation that the saturation region more helps triode, the reliability height.Situations such as the second, in the line of electric force socket phase sequence decision circuit, the assembled state of the light emitting diode by three different colours shows, whether three lines of live wire, zero line, ground wire that obtain socket have wrong, open circuit.The 3rd, the high Q value bandpass filter that adopts operational amplifier to constitute is handled to the received signal, has improved detector sensitivity and accuracy.The 4th, because single " not gate " quantity on a slice " not gate " integrated circuit that the utility model adopted is more than single " rejection gate " quantity on a slice " rejection gate " integrated circuit, so use a plurality of " not gates " can make circuit working more stable.
Should be appreciated that the above generality of the present invention is described and the following detailed description all is exemplary and explanat, and be intended to the further explanation that the invention provides for as claimed in claim.
Description of drawings
Comprise that accompanying drawing is for providing the present invention further to be understood, they are included and are constituted the application's a part, and accompanying drawing shows embodiments of the invention, and play the effect of explaining the principle of the invention with this instructions.
In the accompanying drawing:
Fig. 1 is the circuit diagram of detection control circuit radiating portion of the electric wire branch road detector of prior art;
Fig. 2 is the circuit diagram of detection control circuit receiving unit of the electric wire branch road detector of prior art;
Fig. 3 is the circuit block diagram of the embodiment of the utility model scheme;
Fig. 4 is the circuit diagram of radiating portion of the embodiment of the utility model scheme;
Fig. 5 is the circuit diagram of receiving unit of the embodiment of the utility model scheme.
Embodiment
Now with embodiments of the present invention will be described by referring to the drawings in detail.
Shown in Fig. 3～5, the utility model is a kind of electric wire branch road detector, and it comprises signal transmission circuit 1, signal generating circuit 2, line of electric force socket phase sequence decision circuit 3, sensor 4, signal processing circuit 5, microprocessor 6 and display 7.
The signal generating circuit 2 of radiating portion is formed the pulse signal of two different frequencies, different duty by not gate, and the signal that frequency is lower is modulated on the frequency higher signal, final signal is delivered to signal transmission circuit 1, by the duty of the high pressure resistant triode in the control signal radiating circuit 1, frequency signal is loaded into the electricity consumption loop gets on.
Line of electric force socket circuit of testing the phase sequence 3 according to when the live wire of front socket, zero line, line position, the light emitting diode of corresponding color is lighted, can obtain 8 kinds of different states by truth table.
The sensor 4 that receives probe portion is made of lc circuit.By LC resonant selecting frequency received signal, the signal that receives is delivered to signal processing circuit 5, via the low pass amplifying circuit of operational amplifier formation, the high Q value bandwidth-limited circuit that operational amplifier constitutes, low pass amplifying circuit, the detecting circuit that operational amplifier constitutes, the signal that receives is carried out from an ac small signal, be transformed into a dc level signal, and this level signal sent in the microprocessor 6, microprocessor 6 is according to the size of level signal, provide control signal, deliver to display 7, provide the indication of signal power by display 7.
As shown in Figure 4, signal transmission circuit is made up of following circuit component.Comprise high pressure resistant triode Q1, high pressure resistant capacitor C 1, resistance R 2, R3, this circuit is directly powered by socket power, the bridge heap that constitutes by diode D1, D2, D3, D4 carries out rectification, and provides+the 6.2V direct supply for signal generating circuit 2 via resistance R 4, stabilivolt Zener, capacitor C 2.Resistance R 1, light emitting diode D9 constitute power light.
Line of electric force socket phase sequence decision circuit 3 is made up of following circuit component, comprises light emitting diode D01, D02, D03, resistance R 01, R02, R03, R04, high pressure resistant capacitor C 01, stabilivolt Z1, Z2, Z4, Z5, Z7, Z8, neon bulb Neon.
As shown in Figure 5, sensor 4 is made up of inductance L and C1.
Those skilled in the art can be obvious, can carry out various modifications and variations and without departing from the spirit and scope of the present invention to above-mentioned exemplary embodiment of the present invention.Therefore, be intended to that the present invention is covered and drop in appended claims and the equivalence techniques scheme scope thereof to modification of the present invention and modification.
Claims (7)
1. an electric wire branch road detector is characterized in that, comprises
Signal generating circuit generates the frequency signal of modulating,
Signal transmission circuit receives the frequency signal of described signal generating circuit generation and it is written into tested electricity consumption loop,
Sensor receives with the signal on the electric line,
Signal processing circuit, the signal of receiving sensor is selected signal that described signal transmission circuit sends and this signal is handled, and changes it into dc level signal,
Microprocessor, according to the size generation control signal of described dc level signal,
Display is according to the indication of described microprocessor control signal shows signal power.
2. electric wire branch road detector as claimed in claim 1 is characterized in that, also comprises line of electric force socket phase sequence decision circuit, and this line of electric force socket phase sequence decision circuit comprises stabilivolt.
3. electric wire branch road detector as claimed in claim 1 is characterized in that described signal generating circuit comprises the not gate gate circuit that can generate two different frequency signals.
4. electric wire branch road detector as claimed in claim 2 is characterized in that, described line of electric force socket phase sequence decision circuit also comprises the light emitting diode with live wire, zero line and the corresponding color of ground wire of socket.
5. electric wire branch road detector as claimed in claim 1 or 2 is characterized in that, described signal processing circuit comprises the high Q value bandpass filter that is made of operational amplifier.
6. electric wire branch road detector as claimed in claim 1 or 2 is characterized in that, described microprocessor adopts the microprocessor of band modulus signal conversion.
7. electric wire branch road detector as claimed in claim 1 or 2 it is characterized in that described signal transmission circuit comprises high voltage bearing triode, and this triode is in saturation region operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200688515U CN201035155Y (en) | 2007-04-10 | 2007-04-10 | Detector for electric wire branch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200688515U CN201035155Y (en) | 2007-04-10 | 2007-04-10 | Detector for electric wire branch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201035155Y true CN201035155Y (en) | 2008-03-12 |
Family
ID=39196044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200688515U Expired - Lifetime CN201035155Y (en) | 2007-04-10 | 2007-04-10 | Detector for electric wire branch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201035155Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182426A (en) * | 2015-10-20 | 2015-12-23 | 江苏海明医疗器械有限公司 | Blocking detection device of radioactive source channel |
| CN109091755A (en) * | 2018-09-21 | 2018-12-28 | 上海华聆人工耳医疗科技有限公司 | A kind of artificial cochlea's special-purpose radio-frequency signal supervisory instrument and method |
-
2007
- 2007-04-10 CN CNU2007200688515U patent/CN201035155Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182426A (en) * | 2015-10-20 | 2015-12-23 | 江苏海明医疗器械有限公司 | Blocking detection device of radioactive source channel |
| CN109091755A (en) * | 2018-09-21 | 2018-12-28 | 上海华聆人工耳医疗科技有限公司 | A kind of artificial cochlea's special-purpose radio-frequency signal supervisory instrument and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080312 |
|
| CX01 | Expiry of patent term |