CN205826796U

CN205826796U - A kind of transformator end detecting device of the same name

Info

Publication number: CN205826796U
Application number: CN201620646983.0U
Authority: CN
Inventors: 王湘林; 候小毛; 蒋佳; 唐梦达; 陈燃; 袁可可; 曹远明
Original assignee: Hunan Institute of Information Technology
Current assignee: Hunan Institute of Information Technology
Priority date: 2016-06-27
Filing date: 2016-06-27
Publication date: 2016-12-21
Anticipated expiration: 2026-06-27

Abstract

The utility model discloses a kind of transformator end detecting device of the same name, including oscillograph and transistor amplifier；Described amplifying circuit includes audion Q1 ,+5V power supply and resistance R1；One end of described oscillographic 1KHZ square-wave signal outfan connecting resistance R1, the base stage of another termination audion Q1 of resistance R1；The grounded emitter of audion Q1；The colelctor electrode of audion Q1 connects the tail of the primary coil of transformator T around an A end；The primary coil of transformator T rises and terminates+5V power supply around a B；Oscillographic GND end ground connection, and the secondary coil D end of connection transformer T；The secondary coil C end of oscillographic probe H connection transformer T.Can be demonstrated the waveform on secondary windings by oscillograph, distinguish Same Name of Ends and different name end by observing waveform, circuit is simple, and testing result is reliable, directly perceived.

Description

A kind of transformator end detecting device of the same name

Technical field

This utility model relates to circuit methods and the oscillography of a kind of transistor amplifier detection transformator Same Name of Ends Device visual method carries out detecting Same Name of Ends.Same Name of Ends is more easy to judge.

Background technology

At present most ofs popular determination methods are resistance and multimeter measures judgement, oscillograph is not added with circuit measuring and sentences Break, carry out judging, judging by the method for battery, also have one CPU of loading to carry out judging that it is of the same name by Lenz's theorem End.But this several method is the most directly perceived, it is judged that get up and the most easily make mistakes, and if relation and theorem between them the ripest The people known could judge its verity Same Name of Ends.

Summary of the invention

For overcoming existing resistance multimeter to measure, oscillograph is not added with circuit measuring, is judged by Lenz's theorem Measure, carry out judging that the several method of measurement is error-prone and not visible with the method measurement of battery, one CPU of loading.This reality The Novel visual adding amplifying circuit with a kind of oscillograph of novel offer is measured, and will not make mistakes, a kind of survey that green hand can judge Method for testing.

The scheme that this method solution technical problem is used is:

A kind of transformator end detecting device of the same name, including oscillograph and transistor amplifier；

Described amplifying circuit includes audion Q1 ,+5V power supply and resistance R1；

One end of described oscillographic 1KHZ square-wave signal outfan connecting resistance R1, another termination audion Q1 of resistance R1 Base stage；The grounded emitter of audion Q1；The colelctor electrode of audion Q1 connects the tail of the primary coil of transformator T around an A end；Become The primary coil of depressor T rises and terminates+5V power supply around a B；

Oscillographic GND end ground connection, and the secondary coil D end of connection transformer T；Oscillographic probe H connection transformer T Secondary coil C end.

Described amplifying circuit also includes diode D1；The negative pole of diode D1 connects the primary coil of transformator T and rises around a B End；The primary coil tail of the cathode connecting transformer T of diode D1 is around an A end.

Principle of the present utility model is:

The 1KHZ square wave of oscillograph output becomes the paraphase side of negative polarity after audion Q1 at the colelctor electrode of audion Q1 Ripple, if oscillograph records transformer secondary coil, CD end waveform is also paraphase waveform, then two coil windings directions one of transformator Causing, rising around point of two coil windings is Same Name of Ends, and the tail of two coil windings is also Same Name of Ends around point；If oscillograph records CD End waveform be positive phase waveform, then two coil windings of transformator are in opposite direction, two coil windings rise around point be different name end, two The tail of individual coil windings is also different name end around point.

Beneficial effect:

A kind of transformator end detecting device of the same name of the present utility model, including oscillograph and transistor amplifier；Described Amplifying circuit includes audion Q1 ,+5V power supply, diode D1 and resistance R1；Described oscillographic 1KHZ square-wave signal outfan One end of connecting resistance R1, the base stage of another termination audion Q1 of resistance R1；The grounded emitter of audion Q1；Audion Q1's Colelctor electrode connects the primary coil tail of transformator T around an A end；The primary coil of transformator T rises and terminates+5V power supply around a B；Oscillograph GND end ground connection, and the secondary coil D end of connection transformer T；The secondary coil C end of oscillographic probe H connection transformer T. Because the square wave of the 1KHZ of oscillograph output becomes the paraphase square wave of negative polarity after audion Q1 at the colelctor electrode of audion Q1, If it is also paraphase waveform that oscillograph records CD end waveform, then two winding directions are consistent, and rising of two windings of transformator around point is Same Name of Ends, the tail of two windings is also Same Name of Ends around point；If oscillograph records the CD positive phase waveform of end waveform, then two winding directions On the contrary, rising around point of two windings of transformator is different name end, and the tail of two windings is also different name end around point.

This utility model can be come by oscillograph on the premise of not taking transformator apart and transistor amplifier is examined Surveying transformator Same Name of Ends and different name end, the amplifying circuit and the+5V power supply that add audion on the primary coil of transformator T make Have driving force, the square-wave signal of 1KHZ that oscillograph self produces, deliver to appointing of transformator by the amplifying circuit built Meaning secondary windings, allows secondary induction to voltage and current, makes oscillograph can demonstrate the waveform on secondary windings, by observing ripple Shape distinguishes Same Name of Ends and different name end, and circuit is simple, and testing result is reliable, directly perceived.

Accompanying drawing explanation

Fig. 1 is this utility model circuit theory diagrams

Fig. 2 is this utility model embodiment the first secondary coil output waveform；

Fig. 3 is this utility model embodiment second subprime coil output waveform；

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.

As shown in Figure 1, a kind of transformator end detecting device of the same name disclosed in this utility model, including oscillograph and three poles Pipe amplifying circuit；

In the present embodiment, transformator T has two secondary coil CD and EF；Successively the Same Name of Ends of CD and EF is detected:

First, by the D end of first secondary coil of oscillographic GND end connection transformer T；Oscillographic probe H connects The first secondary coil C end of transformator T；Recording CD end output waveform by oscillograph is A1-1, as shown in Figure 2；Because oscillography The square wave of 1KHZ of device output becomes the paraphase rectangle square wave of negative polarity after audion Q1 at the colelctor electrode of audion Q1, and CD End output waveform A1-1 is also paraphase waveform, then illustrate that the primary coil of transformator and first level coil windings direction are consistent, Rising around point of two windings is Same Name of Ends, and tail is also Same Name of Ends around point.

Then, by the F end of the second subprime coil of oscillographic GND end connection transformer T；Oscillographic probe H connects The second subprime coil E end of transformator T；Recording EF end output waveform by oscillograph is A1-2, as shown in Figure 3；Because oscillography The square wave of 1KHZ of device output becomes the paraphase rectangle square wave of negative polarity after audion Q1 at the colelctor electrode of audion Q1, and EF End output waveform A1-2 is positive phase waveform, then illustrate that the primary coil of transformator and second subprime coil windings are in opposite direction, two Rising around point of winding is different name end, and tail is also different name end around point.

This utility model can demonstrate the waveform on secondary windings by oscillograph, distinguishes of the same name by observing waveform End and different name end, circuit is simple, and testing result is reliable, directly perceived.

Claims

1. a transformator end detecting device of the same name, it is characterised in that include oscillograph and transistor amplifier；

One end of described oscillographic 1KHZ square-wave signal outfan connecting resistance R1, the base of another termination audion Q1 of resistance R1 Pole；The grounded emitter of audion Q1；The colelctor electrode of audion Q1 connects the tail of the primary coil of transformator T around an A end；Transformator Rising of the primary coil of T terminates+5V power supply around a B；

Oscillographic GND end ground connection, and the secondary coil D end of connection transformer T；Oscillographic probe H connection transformer T's is secondary Level coil C end.

Transformator the most according to claim 1 end detecting device of the same name, it is characterised in that described amplifying circuit also includes two Pole pipe D1；The negative pole of diode D1 connect the primary coil of transformator T rise around a B end；The cathode connecting transformer T's of diode D1 The tail of primary coil is around an A end.