CN205229479U - Wall body electric wire detector - Google Patents

Wall body electric wire detector Download PDF

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Publication number
CN205229479U
CN205229479U CN201520830961.5U CN201520830961U CN205229479U CN 205229479 U CN205229479 U CN 205229479U CN 201520830961 U CN201520830961 U CN 201520830961U CN 205229479 U CN205229479 U CN 205229479U
Authority
CN
China
Prior art keywords
resistance
operational amplifier
rectifier bridge
display module
diode
Prior art date
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 - Fee Related
Application number
CN201520830961.5U
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Chinese (zh)
Inventor
卢杨
沐润志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunming University of Science and Technology
Original Assignee
Kunming University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kunming University of Science and Technology filed Critical Kunming University of Science and Technology
Priority to CN201520830961.5U priority Critical patent/CN205229479U/en
Application granted granted Critical
Publication of CN205229479U publication Critical patent/CN205229479U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a wall body electric wire detector belongs to electron technical field. The utility model discloses an induction coil, rectifier bridge, voltage follower, second order filter, difference amplifier, display module, induction coil, rectifier bridge, voltage follower, second order filter, difference amplifier, display module order are consecutive. The rectifier bridge comprises diode D1, D2, D3, D4, voltage follower comprises resistance R1, R2 and operational amplifier A1, and the second order filter comprises resistance R3, R4, electric capacity C1, C2, and difference amplifier comprises operational amplifier A2, resistance R5, R6, R7, the display module comprises emitting diode D5. The utility model discloses but whether the real -time detection wall body has the live wire condition, whether with electricity can find out easy operation, practical convenience through the display module.

Description

A kind of body of wall electric wire detector
Technical field
The utility model relates to a kind of body of wall electric wire detector, belongs to electronic technology field.
Background technology
During house decoration checks, the electric wire in body of wall often causes certain influence to construction, even accidents caused, causes personnel's property and health loss.If can detect in construction, find out the layout of electric wire in body of wall, then effectively can prevent the generation of related accidents.
Summary of the invention
The technical problems to be solved in the utility model is: the utility model provides a kind of body of wall electric wire detector, can detect in real time, remind people by display module to body of wall electric wire.
Technical solutions of the utility model are: a kind of body of wall electric wire detector, comprises inductive coil 1, rectifier bridge 2, voltage follower 3, second order filter 4, differential amplifier 5, display module 6; Described inductive coil 1, rectifier bridge 2, voltage follower 3, second order filter 4, differential amplifier 5, display module 6 order is connected successively;
Described inductive coil 1 one end is connected with the negative pole of diode D1, D2 of rectifier bridge 2, and the other end is connected with the positive pole of diode D3, D4; Rectifier bridge 2 is made up of diode D1, D2, D3, D4, the plus earth of diode D1, D2; Voltage follower 3 is made up of resistance R1, R2 and operational amplifier A 1, resistance R1 one end is connected with the in-phase input end of operational amplifier A 1, the resistance R1 other end is connected with diode D3, D4 negative pole of rectifier bridge 2, resistance R2 one end is connected with the inverting input of operational amplifier A 1, and the other end is connected with the output terminal of operational amplifier A 1; Second order filter 4 is made up of resistance R3, R4, electric capacity C1, C2, resistance R3 one end is connected with the output terminal of the operational amplifier A 1 of voltage follower 3, the other end is connected with resistance R4 with electric capacity C1, electric capacity C1 other end ground connection, the other end of resistance R4 is connected with the in-phase input end of the operational amplifier A 2 of differential amplifier 5 with electric capacity C2, the other end ground connection of electric capacity C2; Differential amplifier 5 is made up of operational amplifier A 2, resistance R5, R6, R7, inverting input, the resistance R6 of resistance R5 one end and operational amplifier A 2 are connected, resistance R5 other end ground connection, the other end of resistance R6 is connected with the output terminal of operational amplifier A 2 and resistance R7, the other end of resistance R7 is connected with the positive pole of the light emitting diode D5 of display module 6, and light emitting diode D5 negative electrode is connected to the ground.
Principle of work of the present utility model is: pasted by inductive coil 1 and move on the wall, after inductive coil 1 senses electricity, produce an induction electromotive force, after rectifier bridge 2, voltage follower 3, second order filter 4 and differential amplifier 5, filtering radio-frequency component obtains a galvanic current pressure signal, and the light emitting diode D5 passing to display module 6 lights.
Use procedure of the present utility model is:
The first step: inductive coil 1 is pasted and moves on the wall;
Second step: after inductive coil 1 senses electricity, produces an induction electromotive force;
3rd step: this induction electromotive force obtains a d. c. voltage signal containing high-frequency harmonic through rectifier bridge 2 rectification;
4th step: this d. c. voltage signal obtains a galvanic current pressure signal through second order filter 3 filtering radio-frequency component;
5th step: this galvanic current pressure signal is amplified by differential amplifier 5, and the light emitting diode D5 that the signal after amplification passes to display module 6 lights.
The beneficial effects of the utility model are:
(1) can detect the whether charged or whether live wire of body of wall electric wire in real time, display module can indicate, so that people make corresponding safeguard measure;
(2) harm that the person is caused of demolishing walls or punch on the wall can be reduced.
(3) simple to operate, practical and convenient.
Accompanying drawing explanation
Fig. 1 is circuit structure block diagram of the present utility model.
Each label in Fig. 1: 1-inductive coil, 2-rectifier bridge, 3-voltage follower, 4-second order filter, 5-differential amplifier, 6-display module; R1, R2, R3, R4, R5, R6, R7-resistance, C1, C2-electric capacity, A1, A2-operational amplifier, D1, D2, D3, D4, D5-diode.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, a kind of body of wall electric wire detector, comprises inductive coil 1, rectifier bridge 2, voltage follower 3, second order filter 4, differential amplifier 5, display module 6; Described inductive coil 1, rectifier bridge 2, voltage follower 3, second order filter 4, differential amplifier 5, display module 6 order is connected successively;
Described inductive coil 1 one end is connected with the negative pole of diode D1, D2 of rectifier bridge 2, and the other end is connected with the positive pole of diode D3, D4; Rectifier bridge 2 is made up of diode D1, D2, D3, D4, the plus earth of diode D1, D2; Voltage follower 3 is made up of resistance R1, R2 and operational amplifier A 1, resistance R1 one end is connected with the in-phase input end of operational amplifier A 1, the resistance R1 other end is connected with diode D3, D4 negative pole of rectifier bridge 2, resistance R2 one end is connected with the inverting input of operational amplifier A 1, and the other end is connected with the output terminal of operational amplifier A 1; Second order filter 4 is made up of resistance R3, R4, electric capacity C1, C2, resistance R3 one end is connected with the output terminal of the operational amplifier A 1 of voltage follower 3, the other end is connected with resistance R4 with electric capacity C1, electric capacity C1 other end ground connection, the other end of resistance R4 is connected with the in-phase input end of the operational amplifier A 2 of differential amplifier 5 with electric capacity C2, the other end ground connection of electric capacity C2; Differential amplifier 5 is made up of operational amplifier A 2, resistance R5, R6, R7, inverting input, the resistance R6 of resistance R5 one end and operational amplifier A 2 are connected, resistance R5 other end ground connection, the other end of resistance R6 is connected with the output terminal of operational amplifier A 2 and resistance R7, the other end of resistance R7 is connected with the positive pole of the light emitting diode D5 of display module 6, and light emitting diode D5 negative electrode is connected to the ground.
By reference to the accompanying drawings specific embodiment of the utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.

Claims (1)

1. a body of wall electric wire detector, is characterized in that: comprise inductive coil (1), rectifier bridge (2), voltage follower (3), second order filter (4), differential amplifier (5), display module (6); Described inductive coil (1), rectifier bridge (2), voltage follower (3), second order filter (4), differential amplifier (5), display module (6) order is connected successively;
Described inductive coil (1) one end is connected with the negative pole of diode D1, D2 of rectifier bridge (2), and the other end is connected with the positive pole of diode D3, D4; Rectifier bridge (2) is made up of diode D1, D2, D3, D4, the plus earth of diode D1, D2; Voltage follower (3) is made up of resistance R1, R2 and operational amplifier A 1, resistance R1 one end is connected with the in-phase input end of operational amplifier A 1, the resistance R1 other end is connected with diode D3, D4 negative pole of rectifier bridge (2), resistance R2 one end is connected with the inverting input of operational amplifier A 1, and the other end is connected with the output terminal of operational amplifier A 1; Second order filter (4) is made up of resistance R3, R4, electric capacity C1, C2, resistance R3 one end is connected with the output terminal of the operational amplifier A 1 of voltage follower (3), the other end is connected with resistance R4 with electric capacity C1, electric capacity C1 other end ground connection, the other end of resistance R4 is connected with the in-phase input end of the operational amplifier A 2 of differential amplifier (5) with electric capacity C2, the other end ground connection of electric capacity C2; Differential amplifier (5) is made up of operational amplifier A 2, resistance R5, R6, R7, inverting input, the resistance R6 of resistance R5 one end and operational amplifier A 2 are connected, resistance R5 other end ground connection, the other end of resistance R6 is connected with the output terminal of operational amplifier A 2 and resistance R7, the other end of resistance R7 is connected with the positive pole of the light emitting diode D5 of display module (6), and light emitting diode D5 negative electrode is connected to the ground.
CN201520830961.5U 2015-10-26 2015-10-26 Wall body electric wire detector Expired - Fee Related CN205229479U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520830961.5U CN205229479U (en) 2015-10-26 2015-10-26 Wall body electric wire detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520830961.5U CN205229479U (en) 2015-10-26 2015-10-26 Wall body electric wire detector

Publications (1)

Publication Number Publication Date
CN205229479U true CN205229479U (en) 2016-05-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520830961.5U Expired - Fee Related CN205229479U (en) 2015-10-26 2015-10-26 Wall body electric wire detector

Country Status (1)

Country Link
CN (1) CN205229479U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106019384A (en) * 2016-06-20 2016-10-12 苏州华徕光电仪器有限公司 Wall body wire detection circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106019384A (en) * 2016-06-20 2016-10-12 苏州华徕光电仪器有限公司 Wall body wire detection circuit

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Date Code Title Description
C14 Grant of patent or utility model
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: 20160511

Termination date: 20171026