CN109444553A - Conductor jointer resistance measurement method and measuring system - Google Patents
Conductor jointer resistance measurement method and measuring system Download PDFInfo
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- CN109444553A CN109444553A CN201910011451.8A CN201910011451A CN109444553A CN 109444553 A CN109444553 A CN 109444553A CN 201910011451 A CN201910011451 A CN 201910011451A CN 109444553 A CN109444553 A CN 109444553A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/14—Measuring resistance by measuring current or voltage obtained from a reference source
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Abstract
The invention discloses a kind of conductor jointer resistance measurement method and measuring systems, belong to conductor jointer resistance measurement field.This method comprises: selecting four measurement points a, b, c, d on the first conducting wire and the second conducting wire, respectively in ad, constant-current source is added between bc, ab, cd, and measure voltage, ad, bc, ab is calculated, resistance R1, R2, R3, R4 between cd calculate the resistance Rbc of conductor jointer by formula Rbc=(R1+R2-R3-R4)/2.The present invention is used for the resistance of measure traverse line connector, generates larger current by constant-current source, meets the condition of measurement, while avoiding the influence of contact resistance, and measurement result is accurate, and measurement accuracy is high.
Description
Technical field
The present invention relates to conductor jointer resistance measurement field, particularly relate to a kind of conductor jointer resistance measurement method and
Measuring system.
Background technique
In the installation process for carrying out electric wiring, equipment, if when conducting wire falls short of or to tap branch, it is necessary to
The connection of conducting wire and conducting wire is realized using conductor jointer.Conductor jointer (terminal) is the most weak place of conducting wire, very
It is easy to happen failure.Tightness degree drop this is because the electrical missing contact of connecting position of wires and connector, between contact surface
It is low, cause contact surface to produce oxidation, thus connector resistance increases, when electric current (especially short circuit current) passes through connector
When, high thermal phenomenon will be generated, connector can be burnt red when severe, blows the individual strands of conducting wire, or even burn out the connection
Device causes line-outage contingency.Therefore the resistance of connector must be measured, to guarantee that line security is run.
The resistance measurement of connector is mainly measured under the two states for charging and having a power failure in the prior art.Band
Electrical measurement: the resistance of live line measurement connector is measured with a kind of special trial bar, and trial bar is made of bakelite pipe,
The both ends of bakelite pipe are provided with contact hook, contact hook are pressed in the both ends of conductor jointer, instruction connector is interior, and there will be voltages
U is dropped, according to the current electric current I for passing through connector, the resistance of the two o'clock can be calculated.With trial bar live line measurement connector
When resistance, there must be load current I to flow through in conducting wire, it, just should be larger in line load in order to make milivoltmeter have biggish instruction
When measure, to bring certain risk, meanwhile, contact between hook and conducting wire that there are Touch errors, reduce measurement accuracy,
Moreover, the route of this method measurement must be it is horizontally arranged, if it is rounded projections arranged, may only measure a following phase or
Connector on two phase conductors, the scope of application are small.
Have a power failure measurement: after line outage, being surveyed with battery or the direct-current power supply DC current of electric substation
Amount, measuring principle is the same with live line measurement, and the tool of measurement is one and is provided with contact hook bar, and contact is hooked on conducting wire
On, the distance between contact hook about 4m adjusts variable resistance, making the electric current of electric power loop is about 6~12A, is then connected
Milivoltmeter is connected, conductor jointer is successively suspended to bar and is left on the conducting wire at conductor jointer 1m, and is divided from milivoltmeter
Ut and Uc drops in other read-out voltage, finds out its resistance ratio then to judge whether the electrical contact of connector is normal.The measurement method
Larger current need to be generated in measurement, but scene is difficult to have the condition, meanwhile, exist between contact hook and conducting wire and contacts mistake
Difference reduces measurement accuracy, moreover, this measurement method needs, the device is complicated, at high cost.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of conductor jointer resistance measurement method and measuring system, this
Invention is used for the resistance of measure traverse line connector, generates larger current by constant-current source, meets the condition of measurement, avoid simultaneously
The influence of contact resistance, measurement result is accurate, and measurement accuracy is high.
It is as follows that the present invention provides technical solution:
On the one hand, the present invention provides a kind of conductor jointer resistance measurement method, comprising:
The first measurement point a is selected on the first conducting wire of conductor jointer connection, in the first measurement point a and conductor jointer
Between select the second measurement point b；The 4th measurement point d is selected on the second conducting wire of conductor jointer connection, in the 4th measurement point d
Third measurement point c is selected between conductor jointer；
Constant-current source is added between the first measurement point a and the 4th measurement point d, and measures the measurement of the first measurement point a and the 4th
Voltage between point d calculates between the first measurement point a and the 4th measurement point d according to the electric current of the voltage of measurement and constant-current source
Resistance R1；
Constant-current source is added between the second measurement point b and third measurement point c, and measures the second measurement point b and third measurement
Voltage between point c calculates between the second measurement point b and third measurement point c according to the electric current of the voltage of measurement and constant-current source
Resistance R2；
Constant-current source is added between the first measurement point a and the second measurement point b, and measures the measurement of the first measurement point a and second
Voltage between point b calculates between the first measurement point a and the second measurement point b according to the electric current of the voltage of measurement and constant-current source
Resistance R3；
Constant-current source is added between third measurement point c and the 4th measurement point d, and measures the measurement of third measurement point c and the 4th
Voltage between point d, calculates between third measurement point c and the 4th measurement point d according to the electric current of the voltage of measurement and constant-current source
Resistance R4；
The true resistance Rbc between the second measurement point b and third measurement point c is calculated, as the resistance of conductor jointer,
In: Rbc=(R1+R2-R3-R4)/2.
As a kind of improvement of conductor jointer resistance measurement method of the invention, the method also includes:
The 5th measurement point e, the 5th measurement point e is selected to connect with conducting wire on the first conducting wire of conductor jointer connection
The distance of device is greater than the first measurement point a at a distance from conductor jointer；The distance between first measurement point a and the second measurement point b
Equal to the distance between the second measurement point b and third measurement point c；
Constant-current source is added between the 5th measurement point e and third measurement point c, and measures the 5th measurement point e and third measurement
Voltage between point c, calculates between the 5th measurement point e and third measurement point c according to the electric current of the voltage of measurement and constant-current source
Resistance R5；
Constant-current source is added between the 5th measurement point e and the first measurement point a, and measures the measurement of the 5th measurement point e and first
Voltage between point a, calculates between the 5th measurement point e and the first measurement point a according to the electric current of the voltage of measurement and constant-current source
Resistance R6；
Calculate the true resistance Rab between the first measurement point a and the second measurement point b, in which: Rab=(R5+R3-R6-
R2)/2；
If Rbc > Rab, conductor jointer are unqualified.
Further, the distance between third measurement point c and the 4th measurement point d are equal to the measurement of the first measurement point a and second
The distance between point b.
Another kind as conductor jointer resistance measurement method of the invention improves, the method also includes:
The 6th measurement point f, the 6th measurement point f is selected to connect with conducting wire on the second conducting wire of conductor jointer connection
The distance of device is greater than the 4th measurement point d at a distance from conductor jointer；The distance between third measurement point c and the 4th measurement point d
Equal to the distance between the second measurement point b and third measurement point c；
Constant-current source is added between the second measurement point b and the 6th measurement point f, and measures the measurement of the second measurement point b and the 6th
Voltage between point f calculates between the second measurement point b and the 6th measurement point f according to the electric current of the voltage of measurement and constant-current source
Resistance R7；
Constant-current source is added between the 4th measurement point d and the 6th measurement point f, and measures the measurement of the 4th measurement point d and the 6th
Voltage between point f, calculates between the 4th measurement point d and the 6th measurement point f according to the electric current of the voltage of measurement and constant-current source
Resistance R8；
Calculate the true resistance Rcd between third measurement point c and the 4th measurement point d, in which: Rcd=(R7+R4-R2-
R8)/2；
If Rbc > Rcd, conductor jointer are unqualified.
Further, the distance between the first measurement point a and the second measurement point b are equal to the measurement of third measurement point c and the 4th
The distance between point d.
On the other hand, the present invention provides a kind of conductor jointer resistance measuring system, including multichannel multi gear digital AC
Constant-current source, the multichannel multi gear digital AC constant-current source include multiple output ends, wherein four output ends are connected separately with and lead
Line, the end of the conducting wire are connected with bindiny mechanism, and the bindiny mechanism leads for connecting first connect with conductor jointer
Four measurement points on line and the second conducting wire；
Wherein, the first measurement point a and the second measurement point b are on the first conducting wire, and the second measurement point b is in the first measurement point
Between a and conductor jointer；Third measurement point c and the 4th measurement point d are on the second conducting wire, and third measurement point c is in the 4th measurement
Between point d and conductor jointer.
As a kind of improvement of conductor jointer resistance measuring system of the invention, the multichannel multi gear digital AC is permanent
5th output end in stream source is connected with conducting wire, and the end of the conducting wire is connected with bindiny mechanism, and the bindiny mechanism is for connecting
Meet the 5th measurement point e on the first conducting wire, the 5th measurement point e be greater than at a distance from conductor jointer the first measurement point a with
The distance of conductor jointer；
Wherein, the distance between the first measurement point a and the second measurement point b be equal to the second measurement point b and third measurement point c it
Between distance, the Liang Ge bindiny mechanism being connect with the first measurement point a and the second measurement point b by first connecting rod connect, with second
The Liang Ge bindiny mechanism that measurement point b is connected with third measurement point c is connected by second connecting rod, the first connecting rod and second connecting rod
Equal length and be equal to the distance between the first measurement point a and the second measurement point b.
Another kind as conductor jointer resistance measuring system of the invention improves, the multichannel multi gear digital AC
6th output end of constant-current source is connected with conducting wire, and the end of the conducting wire is connected with bindiny mechanism, and the bindiny mechanism is used for
The 6th measurement point f on the second conducting wire is connected, the 6th measurement point f is greater than the 4th measurement point d at a distance from conductor jointer
At a distance from conductor jointer；
Wherein, the distance between third measurement point c and the 4th measurement point d be equal to the second measurement point b and third measurement point c it
Between distance, the Liang Ge bindiny mechanism being connect with third measurement point c and the 4th measurement point d by fourth link connect, with second
The Liang Ge bindiny mechanism that measurement point b is connected with third measurement point c is connected by third connecting rod, the third connecting rod and fourth link
Equal length and be equal to the distance between the second measurement point b and third measurement point c.
Further, the bindiny mechanism includes contact hook, pulley or tiger's jaw pincers.
Further, the frequency of the multichannel multi gear digital AC constant-current source is adjustable.
The invention has the following advantages:
The present invention is used for the resistance of measure traverse line connector, generates larger current by constant-current source, meets the condition of measurement,
Meanwhile the invention avoids the influence of contact resistance, the resistance of the conductor jointer of measurement is true resistance value, measurement result
Accurately, measurement accuracy is high.
Detailed description of the invention
Fig. 1 is the schematic diagram of one embodiment of conductor jointer resistance measuring system of the invention；
Fig. 2 is the schematic diagram of another embodiment of conductor jointer resistance measuring system of the invention；
Fig. 3 is the schematic diagram of the further embodiment of conductor jointer resistance measuring system of the invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The embodiment of the present invention provides a kind of conductor jointer resistance measurement method, as shown in Figure 1, this method comprises:
The first measurement point a is selected on the first conducting wire 2 that conductor jointer 1 connects, is connected in the first measurement point a with conducting wire
The second measurement point b is selected between device 1；The 4th measurement point d is selected on the second conducting wire 3 that conductor jointer 1 connects, and is surveyed the 4th
It measures and selects third measurement point c between point d and conductor jointer 1.
Due to the first measurement point a, the second measurement point b, third measurement point c and the 4th measurement point d and conductive contact, so that connecing
Synapsis has contact resistance, is denoted as Ra, Rb, Rc and Rd respectively, and there is also certain resistance values between each tie point, remembers each
True resistance value is respectively Rab, Rbc and Rcd between adjacent attachment points, wherein Rbc (the second measurement point b and third measurement point c
Between removal contact resistance after true resistance value) be conductor jointer resistance value, method of the invention be survey
The method for measuring Rbc.
Between the first measurement point a and the 4th measurement point d by conducting wire be added constant-current source, and measure the first measurement point a and
Voltage between 4th measurement point d calculates the measurement of the first measurement point a and the 4th according to the electric current of the voltage of measurement and constant-current source
Resistance R1 between point d, wherein R1=Ra+Rab+Rbc+Rcd+Rd.
Between the second measurement point b and third measurement point c by conducting wire be added constant-current source, and measure the second measurement point b and
Voltage between third measurement point c calculates the second measurement point b according to the electric current of the voltage of measurement and constant-current source and third measures
Resistance R2 between point c, wherein R2=Rb+Rbc+Rc.
Between the first measurement point a and the second measurement point b by conducting wire be added constant-current source, and measure the first measurement point a and
Voltage between second measurement point b calculates the measurement of the first measurement point a and second according to the electric current of the voltage of measurement and constant-current source
Resistance R3 between point b, wherein R3=Ra+Rab+Rb.
Between third measurement point c and the 4th measurement point d by conducting wire be added constant-current source, and measure third measurement point c and
Voltage between 4th measurement point d calculates the measurement of third measurement point c and the 4th according to the electric current of the voltage of measurement and constant-current source
Resistance R4 between point d, wherein R4=Rc+Rcd+Rd.
It calculates and removes the true resistance value Rbc after contact resistance between the second measurement point b and third measurement point c, as leading
The resistance of wiring connector, in which: Rbc=(R1+R2-R3-R4)/2.It, can basis after measurement obtains the resistance of conductor jointer
The resistance of conductor jointer judges whether conductor jointer is qualified.
The present invention is used for the resistance of measure traverse line connector, generates larger current by constant-current source, meets the condition of measurement,
Meanwhile the invention avoids the influence of contact resistance, the resistance of the conductor jointer of measurement is true resistance value, measurement result
Accurately, measurement accuracy is high.
It in the present invention, can be using a simple constant-current source, successively respectively with a, d, b, c, a, b, c, d are connected, surveyed
Measure R1, R2, R3, R4.Preferably can be used multichannel multi gear constant-current source, four output ends of multichannel multi gear constant-current source simultaneously with a,
B, c, d are connected, and control multichannel multi gear constant-current source, so that with a, d, b, c, a, b, the output end elder generation backgating of c, d connection, measurement
R1、R2、R3、R4。
The present invention can directly judge whether conductor jointer is qualified by the value of conductor jointer resistance, can also pass through
The size relation of the value of conductor jointer resistance and the value of conductor resistance is judged whether conductor jointer is qualified.
Under normal circumstances, the resistance of connector should be smaller than a same long section lead resistance, if the resistance of connector
Resistance than same length conducting wire is big, then this connector is unqualified, should replace immediately.Based on this, as shown in Fig. 2, of the invention
Method further include:
The 5th measurement point e, the 5th measurement point e and conductor jointer are selected on the first conducting wire 2 that conductor jointer 4 connects
4 distance is greater than the first measurement point a at a distance from conductor jointer 4；The distance between first measurement point a and the second measurement point b
Equal to the distance between the second measurement point b and third measurement point c.
The contact resistance of 5th contact position measurement point e is denoted as Re, and true resistance value is denoted as Rea, Rab (first between ea
The true resistance value after removal contact resistance between measurement point a and the second measurement point b) it is the first conducting wire between ab
True resistance value, after finding out Rab, the resistance and equal length of the i.e. comparable conductor jointer of the Rbc calculated according to Rab and before
The first conducting wire resistance value, to judge whether conductor jointer qualified.
Between the 5th measurement point e and third measurement point c by conducting wire be added constant-current source, and measure the 5th measurement point e and
Voltage between third measurement point c calculates the 5th measurement point e according to the electric current of the voltage of measurement and constant-current source and third measures
Resistance R5 between point c, wherein R5=Re+Rea+Rab+Rbc.
Between the 5th measurement point e and the first measurement point a by conducting wire be added constant-current source, and measure the 5th measurement point e and
Voltage between first measurement point a calculates the measurement of the 5th measurement point e and first according to the electric current of the voltage of measurement and constant-current source
Resistance R6 between point a, wherein R6=Re+Rea+Ra.
Again by aforementioned, R3=Ra+Rab+Rb, R2=Rb+Rbc+Rc.
The true resistance Rab between the first measurement point a and the second measurement point b can be calculated, in which: Rab=(R5+R3-
R6-R2)/2；
If Rbc > Rab, conductor jointer are unqualified.
At this point, for convenience of measuring, it is preferred that the distance between third measurement point c and the 4th measurement point d are equal to the first measurement
The distance between point a and the second measurement point b.
The resistance value of first conducting wire of the aforementioned resistance and equal length using conductor jointer judges that conductor jointer is
No qualification, the present invention can also use the resistance value of the resistance of conductor jointer and the second conducting wire of equal length to judge that conducting wire connects
Whether qualified connect device, principle and measurement method are identical as the first conducting wire.Based on this, as shown in figure 3, this method further include:
The 6th measurement point f is selected on the second conducting wire of conductor jointer connection, the 6th measurement point f and conductor jointer
Distance is greater than the 4th measurement point d at a distance from conductor jointer；The distance between third measurement point c and the 4th measurement point d are equal to
The distance between second measurement point b and third measurement point c.
Constant-current source is added between the second measurement point b and the 6th measurement point f, and measures the measurement of the second measurement point b and the 6th
Voltage between point f calculates between the second measurement point b and the 6th measurement point f according to the electric current of the voltage of measurement and constant-current source
Resistance R7.
Constant-current source is added between the 4th measurement point d and the 6th measurement point f, and measures the measurement of the 4th measurement point d and the 6th
Voltage between point f, calculates between the 4th measurement point d and the 6th measurement point f according to the electric current of the voltage of measurement and constant-current source
Resistance R8.
Calculate the true resistance Rcd between third measurement point c and the 4th measurement point d, in which: Rcd=(R7+R4-R2-
R8)/2；
If Rbc > Rcd, conductor jointer are unqualified.
At this point, for convenience of measuring, it is preferred that the distance between the first measurement point a and the second measurement point b are measured equal to third
The distance between point c and the 4th measurement point d.
In order to avoid error, when measuring voltage, should be carried out in the place other than distance of wire connector 1m.This is because of connection
When the contact deterioration of device, electric current is concentrated on outer layer conductor near conductor jointer, so closer to conductor jointer,
Voltage drop is bigger.And the place other than 1m, distribution of the electric current in conducting wire are uniform, can measure accurate result.Cause
This, the second measurement point b nearest from conductor jointer and third measurement point c are 1m at a distance from conductor jointer 4.
On the other hand, the present invention is supplied to a kind of conductor jointer resistance measuring system, as shown in Figure 1, including that multichannel is more
Shelves digital AC constant-current source 4, multichannel multi gear digital AC constant-current source 4 include multiple output ends 5, wherein four output ends point
It is not connected with conducting wire 6, the end of conducting wire 6 is connected with bindiny mechanism, and bindiny mechanism is used to connect the connect with conductor jointer 1
Four measurement points on one conducting wire 2 and the second conducting wire 3；
Wherein, the first measurement point a and the second measurement point b be on the first conducting wire 2, the second measurement point b in the first measurement point a and
Between conductor jointer 1；Third measurement point c and the 4th measurement point d are on the second conducting wire 3, and third measurement point c is in the 4th measurement point
Between d and conductor jointer 1.
The present invention is by adjusting multichannel multi gear digital AC constant-current source, so that b, c, a, b, c, d are connected defeated with a, d
Outlet elder generation backgating measures R1, R2, R3, R4 by method above-mentioned, and calculates the resistance Rbc of conductor jointer.
The present invention is used for the resistance of measure traverse line connector, generates larger current by constant-current source, meets the condition of measurement,
Meanwhile the invention avoids the influence of contact resistance, the resistance of the conductor jointer of measurement is true resistance value, measurement result
Accurately, measurement accuracy is high.
The present invention can directly judge whether conductor jointer is qualified by the value of conductor jointer resistance, can also pass through
The size relation of the value of conductor jointer resistance and the value of conductor resistance is judged whether conductor jointer is qualified.
The present invention can directly judge whether conductor jointer is qualified by the value of conductor jointer resistance, can also pass through
The size relation of the value of conductor jointer resistance and the value of conductor resistance is judged whether conductor jointer is qualified.
Under normal circumstances, the resistance of connector should be smaller than a same long section lead resistance, it is believed that, if connection
The resistance ratio of the resistance of device and same length conducting wire is greater than 2, then this connector is unqualified, should replace immediately.Based on this, such as scheme
Shown in 2, the 5th output end of multichannel multi gear digital AC constant-current source 4 is connected with conducting wire 6, and the end of conducting wire 6 is connected with company
Connection mechanism, bindiny mechanism are used to connect the 5th measurement point e on the first conducting wire 2, the 5th measurement point e and conductor jointer 1 away from
From be greater than the first measurement point a at a distance from conductor jointer 1；
Wherein, the distance between the first measurement point a and the second measurement point b be equal to the second measurement point b and third measurement point c it
Between distance, the Liang Ge bindiny mechanism connecting with the first measurement point a and the second measurement point b is connected by first connecting rod 7, with second
The Liang Ge bindiny mechanism that measurement point b is connected with third measurement point c is connected by second connecting rod 8, first connecting rod 7 and second connecting rod 8
Equal length and be equal to the distance between the first measurement point a and the second measurement point b.
The present invention is by adjusting multichannel multi gear digital AC constant-current source, so that a, b, e, a, b, c are connected defeated with e, c
Outlet elder generation backgating measures R5, R3, R6, R2 by method above-mentioned, and calculates true resistance of first conducting wire between ab
The electricity of first conducting wire of the resistance and equal length of the i.e. comparable conductor jointer of value Rab, the Rbc calculated according to Rab and before
Resistance value, to judge whether conductor jointer is qualified.
The resistance value of first conducting wire of the aforementioned resistance and equal length using conductor jointer judges that conductor jointer is
No qualification, the present invention can also use the resistance value of the resistance of conductor jointer and the second conducting wire of equal length to judge that conducting wire connects
Whether qualified connect device, principle and measurement method are identical as the first conducting wire.Based on this, as shown in figure 3, the digital friendship of multichannel multi gear
6th output end of stream constant-current source 4 is connected with conducting wire 6, and the end of conducting wire 6 is connected with bindiny mechanism, and bindiny mechanism is for connecting
The 6th measurement point f on second conducting wire 3, the 6th measurement point f are greater than the 4th measurement point d and conducting wire at a distance from conductor jointer 1
The distance of connector 1；
Wherein, the distance between third measurement point c and the 4th measurement point d be equal to the second measurement point b and third measurement point c it
Between distance, the Liang Ge bindiny mechanism connecting with third measurement point c and the 4th measurement point d connected by fourth link 10, with the
The Liang Ge bindiny mechanism that two measurement point b are connected with third measurement point c is connected by third connecting rod 9, third connecting rod 9 and fourth link
10 equal length is simultaneously equal to the distance between the second measurement point b and third measurement point c.
The present invention is by adjusting multichannel multi gear digital AC constant-current source, so that c, d, b, c, d, f are connected defeated with b, f
Outlet elder generation backgating measures R7+R4-R2-R8 by method above-mentioned, and calculates true resistance of second conducting wire between cd
The electricity of second conducting wire of the resistance and equal length of the i.e. comparable conductor jointer of value Rcd, the Rbc calculated according to Rcd and before
Resistance value, to judge whether conductor jointer is qualified.
The output size of current and frequency for the multichannel multi gear digital AC constant-current source that the present invention is led to are adjustable, Ke Yiyong
In live line measurement and the measurement that has a power failure.When live line measurement and power failure measurement, output electric current is regulated first, so that tested any two points
Conducting, when exporting electric current, measurement voltage is unsaturated.Power frequency is adjusted again, is measured for having a power failure, frequency can arbitrarily be chosen,
For live line measurement, adjustment frequency need to be realized to not measured by the frequency band of test line current interference first.
Bindiny mechanism of the invention preferably contacts hook, pulley or tiger's jaw pincers etc..
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of conductor jointer resistance measurement method characterized by comprising
The first measurement point a is selected on the first conducting wire of conductor jointer connection, between the first measurement point a and conductor jointer
Select the second measurement point b；The 4th measurement point d is selected on the second conducting wire of conductor jointer connection, in the 4th measurement point d and is led
Third measurement point c is selected between wiring connector；
Be added constant-current source between the first measurement point a and the 4th measurement point d, and measure the first measurement point a and the 4th measurement point d it
Between voltage, the resistance between the first measurement point a and the 4th measurement point d is calculated according to the electric current of the voltage of measurement and constant-current source
R1；
Be added constant-current source between the second measurement point b and third measurement point c, and measure the second measurement point b and third measurement point c it
Between voltage, the resistance between the second measurement point b and third measurement point c is calculated according to the electric current of the voltage of measurement and constant-current source
R2；
Be added constant-current source between the first measurement point a and the second measurement point b, and measure the first measurement point a and the second measurement point b it
Between voltage, the resistance between the first measurement point a and the second measurement point b is calculated according to the electric current of the voltage of measurement and constant-current source
R3；
Constant-current source is added between third measurement point c and the 4th measurement point d, and measure third measurement point c and the 4th measurement point d it
Between voltage, the resistance between third measurement point c and the 4th measurement point d is calculated according to the electric current of the voltage of measurement and constant-current source
R4；
Calculate the true resistance Rbc between the second measurement point b and third measurement point c, the resistance as conductor jointer, in which:
Rbc=(R1+R2-R3-R4)/2.
2. conductor jointer resistance measurement method according to claim 1, which is characterized in that the method also includes:
The 5th measurement point e is selected on the first conducting wire of conductor jointer connection, the 5th measurement point e and conductor jointer
Distance is greater than the first measurement point a at a distance from conductor jointer；The distance between first measurement point a and the second measurement point b are equal to
The distance between second measurement point b and third measurement point c；
Be added constant-current source between the 5th measurement point e and third measurement point c, and measure the 5th measurement point e and third measurement point c it
Between voltage, the resistance between the 5th measurement point e and third measurement point c is calculated according to the electric current of the voltage of measurement and constant-current source
R5；
Be added constant-current source between the 5th measurement point e and the first measurement point a, and measure the 5th measurement point e and the first measurement point a it
Between voltage, the resistance between the 5th measurement point e and the first measurement point a is calculated according to the electric current of the voltage of measurement and constant-current source
R6；
Calculate the true resistance Rab between the first measurement point a and the second measurement point b, in which: Rab=(R5+R3-R6-R2)/2；
If Rbc > Rab, conductor jointer are unqualified.
3. conductor jointer resistance measurement method according to claim 2, which is characterized in that third measurement point c and the 4th
The distance between measurement point d is equal to the distance between the first measurement point a and the second measurement point b.
4. conductor jointer resistance measurement method according to claim 1, which is characterized in that the method also includes:
The 6th measurement point f is selected on the second conducting wire of conductor jointer connection, the 6th measurement point f and conductor jointer
Distance is greater than the 4th measurement point d at a distance from conductor jointer；The distance between third measurement point c and the 4th measurement point d are equal to
The distance between second measurement point b and third measurement point c；
Be added constant-current source between the second measurement point b and the 6th measurement point f, and measure the second measurement point b and the 6th measurement point f it
Between voltage, the resistance between the second measurement point b and the 6th measurement point f is calculated according to the electric current of the voltage of measurement and constant-current source
R7；
Be added constant-current source between the 4th measurement point d and the 6th measurement point f, and measure the 4th measurement point d and the 6th measurement point f it
Between voltage, the resistance between the 4th measurement point d and the 6th measurement point f is calculated according to the electric current of the voltage of measurement and constant-current source
R8；
Calculate the true resistance Rcd between third measurement point c and the 4th measurement point d, in which: Rcd=(R7+R4-R2-R8)/2；
If Rbc > Rcd, conductor jointer are unqualified.
5. conductor jointer resistance measurement method according to claim 4, which is characterized in that the first measurement point a and second
The distance between measurement point b is equal to the distance between third measurement point c and the 4th measurement point d.
6. a kind of conductor jointer resistance measuring system, which is characterized in that described including multichannel multi gear digital AC constant-current source
Multichannel multi gear digital AC constant-current source includes multiple output ends, wherein four output ends are connected separately with conducting wire, the conducting wire
End be connected with bindiny mechanism, the bindiny mechanism is for connecting the first conducting wire and the second conducting wire connecting with conductor jointer
On four measurement points；
Wherein, the first measurement point a and the second measurement point b be on the first conducting wire, the second measurement point b in the first measurement point a and
Between conductor jointer；Third measurement point c and the 4th measurement point d are on the second conducting wire, and third measurement point c is in the 4th measurement point d
Between conductor jointer.
7. conductor jointer resistance measuring system according to claim 6, which is characterized in that the multichannel multi gear is digital
5th output end of AC constant-current source is connected with conducting wire, and the end of the conducting wire is connected with bindiny mechanism, the bindiny mechanism
For connecting the 5th measurement point e on the first conducting wire, the 5th measurement point e is greater than the first measurement at a distance from conductor jointer
Point a is at a distance from conductor jointer；
Wherein, the distance between the first measurement point a and the second measurement point b are equal between the second measurement point b and third measurement point c
Distance, the Liang Ge bindiny mechanism connecting with the first measurement point a and the second measurement point b are connected by first connecting rod, with the second measurement
The Liang Ge bindiny mechanism that point b is connected with third measurement point c is connected by second connecting rod, the length of the first connecting rod and second connecting rod
It spends equal and is equal to the distance between the first measurement point a and the second measurement point b.
8. conductor jointer resistance measuring system according to claim 6, which is characterized in that the multichannel multi gear is digital
6th output end of AC constant-current source is connected with conducting wire, and the end of the conducting wire is connected with bindiny mechanism, the bindiny mechanism
For connecting the 6th measurement point f on the second conducting wire, the 6th measurement point f is greater than the 4th measurement at a distance from conductor jointer
Point d is at a distance from conductor jointer；
Wherein, the distance between third measurement point c and the 4th measurement point d are equal between the second measurement point b and third measurement point c
Distance, the Liang Ge bindiny mechanism connecting with third measurement point c and the 4th measurement point d are connected by fourth link, with the second measurement
The Liang Ge bindiny mechanism that point b is connected with third measurement point c is connected by third connecting rod, the length of the third connecting rod and fourth link
It spends equal and is equal to the distance between the second measurement point b and third measurement point c.
9. according to any conductor jointer resistance measuring system of claim 6-9, which is characterized in that the bindiny mechanism
Including contact hook, pulley or tiger's jaw pincers.
10. according to any conductor jointer resistance measuring system of claim 6-9, which is characterized in that the multichannel is more
The frequency of shelves digital AC constant-current source is adjustable.
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| CN111308209A (en) * | 2020-03-13 | 2020-06-19 | 深圳市华星光电半导体显示技术有限公司 | Contact impedance measuring method for liquid crystal display panel joint and liquid crystal display panel |
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