CN105487033B - The calibrating installation of wire test instrument - Google Patents
The calibrating installation of wire test instrument Download PDFInfo
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- CN105487033B CN105487033B CN201610015782.5A CN201610015782A CN105487033B CN 105487033 B CN105487033 B CN 105487033B CN 201610015782 A CN201610015782 A CN 201610015782A CN 105487033 B CN105487033 B CN 105487033B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
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- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention relates to a kind of calibrating installations of wire test instrument, according to technical solution provided by the invention, the calibrating installation of the wire test instrument, include multiport conversion circuit for connecting wire test instrument to be calibrated connection and for realizing the standard parameter test circuit to wire test instrument performance calibration, the standard parameter test circuit is connect by coaxial switch circuit with multiport conversion circuit；The present invention can match connection using connecting pin A, the connecting pin B of multiport conversion circuit with wire test instrument, corresponding connection cable in multiport conversion circuit can be selected using coaxial switch circuit, using the corresponding selective power of selected on-off circuit is realized to breaking resistor, wire insulation resistance, short-circuit between conductors resistance, proof voltage test, leakage current testing and the performance calibration for looking for a function in conducting resistance in the line of wire test instrument, line between selected on-off circuit, line in line, calibration efficiency is high, wide adaptation range, securely and reliably.
Description
Technical field
The present invention relates to a kind of calibrating installation, especially a kind of calibrating installation of wire test instrument belongs to wire test instrument
The technical field of calibration.
Background technology
Wire rod（Winding displacement）Tester be for various electronics, telecommunication wire rod and connector test and the Special instrument that designs
Device is widely used in the wiring detection in the fields such as computer, communication.Wire test instrument to wire rod in addition to carrying out general short circuit, open circuit
Test outside, resistance test also is carried out, to the insulation impedance of arbitrary two connecting lines to connecting line itself and connecting line and connector
Test, voltage-withstand test, leakage current testing.Underproof wire rod can be checked by the test of wire test instrument, and can be accurate
Judge which endpoint has short circuit or open circuit phenomenon.China is existing most authoritative《People's Republic of China's national measurement technical specification》
Without corresponding measurement and calibration specification in catalogue, thus also without corresponding special calibrating installation.
Invention content
The purpose of the present invention is overcoming the deficiencies in the prior art, a kind of calibrating installation of wire test instrument is provided,
Its is compact-sized, can realize effective calibration to wire test instrument, calibration efficiency is high, wide adaptation range, securely and reliably.
According to technical solution provided by the invention, the calibrating installation of the wire test instrument, including be used to connect to be calibrated
Wire test instrument connection multiport conversion circuit and for realizing the standard parameter to wire test instrument performance calibration ability
Test circuit, the standard parameter test circuit are connect by coaxial switch circuit with multiport conversion circuit；
The multiport conversion circuit includes the connection cable that multiply is in arranged in parallel, all companies in multiport conversion circuit
Run in one end of line forms connecting pin A, and the other end of all connection cables forms connecting pin B in multiport conversion circuit；
The coaxial switch circuit includes coaxial switch S3, coaxial switch S4 and coaxial switch S5, the coaxial switch
The moved end of the moved end of S3, the moved end of coaxial switch S4 and coaxial switch S5 is connect with standard parameter test circuit, is coaxially opened
Close multiple static sides of S3, multiple static sides of coaxial switch S4, multiple static sides of coaxial switch S5 respectively with multiport conversion circuit
Interior multiple connection cables are correspondingly connected with, wherein the multiple connection cables and coaxial switch of all static side connections of coaxial switch S3
Multiple connection cables of the more a static sides connections of S4 are consistent, multiple connection cables of all static sides connections of coaxial switch S3 with it is coaxial
Multiple connection cables of all static side connections of switch S5 are all different；
The standard parameter test circuit includes selected on-off circuit between selected on-off circuit and line in line, in the line
One end of selected on-off circuit is connect with the moved end of coaxial switch S3, the other end of selected on-off circuit and coaxial switch S4 in line
Moved end connection, one end of selected on-off circuit is connect with the moved end of coaxial switch S3 between line, and selected on-off circuit is another between line
One end is connect with the moved end of coaxial switch S5.
Selected on-off circuit includes selecting switch S2 in line in the line, in the line moved end of selecting switch S2 with it is coaxial
The moved end of switch S3 connects, and a static side of selecting switch S2 is directly connect with the moved end of coaxial switch S4 in line, selects to open in line
Remaining static side for closing S2 is connect by standard breaking resistor, standard breaking resistor with the moved end of coaxial switch S4 respectively.
Selected on-off circuit includes selecting switch S1 between line between the line, between the line moved end of selecting switch S1 with it is coaxial
The moved end of switch S3 connects, and the first static side of selecting switch S1 is connect with test position C in line between line, selecting switch S1 between line
Second static side is connect with one end of proof voltage test voltage Table V, and the other end of proof voltage test voltage Table V is with coaxial switch S5's
Moved end connects, and the third static side of selecting switch S1 is connect with one end of leakage current testing ammeter A between line, leakage current testing
The other end of ammeter A is connect by current-limiting resistance with the moved end of coaxial switch S5, remaining static side of selecting switch S1 point between line
It is not connected by the moved end of standard short-circuit resistance, insulation resistance and coaxial switch S5.
The proof voltage test voltage Table V uses moment maximum value memory-type voltmeter, leakage current testing ammeter A to adopt
With moment maximum value memory-type ammeter.
Connection cable quantity in the multiport conversion circuit is 1 ~ 256.
Advantages of the present invention：Company can be matched with wire test instrument using the connecting pin A of multiport conversion circuit, connecting pin B
Connect, corresponding connection cable in multiport conversion circuit can be selected using coaxial switch circuit, using selected on-off circuit in line,
The corresponding selective power of selected on-off circuit is realized to breaking resistor, line in conducting resistance in the line of wire test instrument, line between line
Between insulation resistance, short-circuit between conductors resistance, proof voltage test, leakage current testing and the performance calibration for looking for a function, calibration effect
Rate is high, wide adaptation range, securely and reliably.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific implementation mode
With reference to specific drawings and examples, the invention will be further described.
As shown in Figure 1：In order to realize effective calibration to wire test instrument, improves the calibration to wire test instrument and imitate
Rate, the present invention include multiport conversion circuit for connecting wire test instrument to be calibrated connection and are surveyed for realizing to wire rod
The standard parameter test circuit of instrument performance calibration ability is tried, the standard parameter test circuit passes through coaxial switch circuit and multiterminal
Mouth conversion circuit connection；
The multiport conversion circuit includes the connection cable that multiply is in arranged in parallel, all companies in multiport conversion circuit
Run in one end of line forms connecting pin A, and the other end of all connection cables forms connecting pin B in multiport conversion circuit；
The coaxial switch circuit includes coaxial switch S3, coaxial switch S4 and coaxial switch S5, the coaxial switch
The moved end of the moved end of S3, the moved end of coaxial switch S4 and coaxial switch S5 is connect with standard parameter test circuit, is coaxially opened
Close multiple static sides of S3, multiple static sides of coaxial switch S4, multiple static sides of coaxial switch S5 respectively with multiport conversion circuit
Interior multiple connection cables are correspondingly connected with, wherein the multiple connection cables and coaxial switch of all static side connections of coaxial switch S3
Multiple connection cables that S4 has static side to connect more are consistent, multiple connection cables of coaxial switch S3 all static sides connections with it is coaxial
Multiple connection cables of all static side connections of switch S5 are all different；
The standard parameter test circuit includes selected on-off circuit between selected on-off circuit and line in line, in the line
One end of selected on-off circuit is connect with the moved end of coaxial switch S3, the other end of selected on-off circuit and coaxial switch S4 in line
Moved end connection, one end of selected on-off circuit is connect with the moved end of coaxial switch S3 between line, and selected on-off circuit is another between line
One end is connect with the moved end of coaxial switch S5.
Specifically, the connection cable quantity in the multiport conversion circuit is 1 ~ 256, connecting pin A, connecting pin B tool
There is the port number of identical quantity, connecting pin A, the port number of connecting pin B are consistent with the quantity of connection cable, pass through connection
End A, connecting pin B and wire test instrument are correspondingly connected with.The quantity of connection cable can be according to being calibrated in multiport conversion circuit
Wire test instrument be determined, that is, be subject to can meet matched with wire test instrument connection needs, specially this technology lead
Known to the personnel of domain, details are not described herein again.
Coaxial switch S3, coaxial switch S4 and coaxial switch S5 operating shafts having the same, coaxial switch S3, are coaxially opened
Corresponding static side can be selected by closing S4 and coaxial switch S5, and selected on-off circuit passes through coaxial switch S3 in wire test instrument, line
Static side, the static side of coaxial switch S4 can select the same root connection cable in multiport conversion circuit, the connection chosen
Winding displacement can constitute a circuit with selected on-off circuit in wire test instrument, line, and can realize wire test instrument looks for a function to survey
Examination；And the static side of coaxial switch S3 can select different connection cables from the static side of coaxial switch S5, be selected between wire test instrument, line
It selects switching circuit and one connection line may be constructed by the static side of coaxial switch S3, the static side of coaxial switch S4, so as to
Test the validity of wire rod tester functional test between different connection cables.
Further, selected on-off circuit includes selecting switch S2 in line in the line, selecting switch S2 in the line
Moved end is connect with the moved end of coaxial switch S3, and a static side of selecting switch S2 is directly connect with the moved end of coaxial switch S4 in line,
Remaining static side of selecting switch S2 is connected by standard conducting resistance, standard breaking resistor and the moved end of coaxial switch S4 respectively in line
It connects.
In the embodiment of the present invention, position is tested between the static side formation line that selecting switch S2 and coaxial switch S4 are directly connected in line
D is set, resistance R6, resistance R7, resistance R8 and resistance 9 are standard conducting resistance or standard breaking resistor in figure, wherein standard is disconnected
The resistance value of road resistance is much larger than the resistance value of standard conducting resistance, meets to the test request of wire test instrument, selecting switch in line
The quantity of S2 static sides connection standard breaking resistor can carry out selection determination as needed, and specially those skilled in the art institute is ripe
Know, details are not described herein again.
Further, selected on-off circuit includes selecting switch S1 between line between above-mentioned line, selecting switch S1 between the line
Moved end is connect with the moved end of coaxial switch S3, and the first static side of selecting switch S1 is connect with test position C in line between line, is selected between line
The second static side for selecting switch S1 is connect with one end of proof voltage test voltage Table V, the other end of proof voltage test voltage Table V with it is same
The moved end of axis switch S5 connects, and the third static side of selecting switch S1 is connect with one end of leakage current testing ammeter A between line, is let out
The other end of electric leakage current test ammeter A is connect by current-limiting resistance with the moved end of coaxial switch S5, selecting switch S1 between line
Remaining static side is connected by the moved end of standard short-circuit resistance, insulation resistance and coaxial switch S5 respectively.
In the embodiment of the present invention, the proof voltage test voltage Table V uses moment maximum value memory-type voltmeter, leakage electricity
Current test ammeter A uses moment maximum value memory-type ammeter.It is surveyed when the moved end of selecting switch S1 between line selects to be formed in line
When trying the first static side of position C, then selected on-off circuit is in off state between line.The mark that selecting switch S1 static sides connect between line
Quasi- short-circuit resistance, insulation resistance quantity can carry out selection determination as needed, specially known to those skilled in the art,
Details are not described herein again.Resistance R1, resistance R2, resistance R3 and resistance R4 are standard short-circuit resistance or insulation resistance, insulation in figure
The resistance value of resistance is more than standard breaking resistor, standard conducting resistance, standard breaking resistor, insulation resistance and standard short-circuit resistance
Specific resistance value be selected as known to those skilled in the art, details are not described herein again.
When being calibrated to wire test instrument, by the connecting pin A, connecting pin B and wire test of multiport conversion circuit
Instrument matching connection.When calibration wire rod tester look for a function, conducting resistance in line, the moved end of selecting switch S2 selects phase in line
The standard conducting resistance answered, test position C in online is beaten in the moved end of selecting switch S1 between line；And when the line of calibration wire rod tester
When interior breaking resistor, the moved end of selecting switch S2 selects corresponding standard breaking resistor in line, the moved end of selecting switch S1 between line
Beat test position C in online.When calibrating the wire insulation resistance of wire rod tester, selecting switch S1 selections are corresponding exhausted between line
Edge resistance, test position D between selecting switch S2 is beaten online in line at this time；When calibrating the short-circuit between conductors resistance of wire rod tester,
Selecting switch S1 selects corresponding standard short-circuit resistance between line, test position D between selecting switch S2 is online in line；It is surveyed by wire rod
The display function of examination instrument itself obtains looking for a function, conducting resistance in line, short between breaking resistor, wire insulation resistance, line in line
The detection calibration result of road resistance.
When calibrating the proof voltage of wire rod tester, the moved end of selecting switch S1 selects the second static side between line, is selected in line
Test position D between the moved end selection line of switch S2, the proof voltage that can be met with a response using proof voltage test voltage Table V.Work as school
When the leakage current of directrix material tester, the moved end of selecting switch S1 selects third static side between line, selecting switch S2 selections in line
Test position D between line can obtain corresponding leakage current by leakage current testing ammeter A.
The present invention can match connection using connecting pin A, the connecting pin B of multiport conversion circuit with wire test instrument, utilize
Coaxial switch circuit can select corresponding connection cable in multiport conversion circuit, be selected between selected on-off circuit, line using in line
The corresponding selective power of switching circuit is selected to realize between insulating breaking resistor, line in conducting resistance in the line of wire test instrument, line
Resistance, short-circuit between conductors resistance, proof voltage test, leakage current testing and the performance calibration for looking for a function, calibration efficiency is high, fits
Answer range wide, securely and reliably.
Claims (3)
1. a kind of calibrating installation of wire test instrument, it is characterized in that：It include the multiport for connecting wire test instrument to be calibrated
Conversion circuit and for realizing the standard parameter test circuit calibrated to wire test instrument performance, the standard parameter is surveyed
Examination circuit is connect by coaxial switch circuit with multiport conversion circuit；The multiport conversion circuit includes multiply in parallel row
The connection cable of cloth, one end of all connection cables forms connecting pin A in multiport conversion circuit, institute in multiport conversion circuit
There is the other end of connection cable to form connecting pin B；The coaxial switch circuit includes coaxial switch S3, coaxial switch S4 and same
Join with standard the moved end of axis switch S5, the moved end of the coaxial switch S3, the moved end of coaxial switch S4 and coaxial switch S5
Number test circuit connection, multiple static sides of coaxial switch S3, multiple static sides of coaxial switch S4, multiple static sides of coaxial switch S5
It is correspondingly connected with respectively with multiple connection cables in multiport conversion circuit, wherein all static sides of coaxial switch S3 connect more
A connection cable is consistent with the more a multiple connection cables of static side connection of coaxial switch S4, all static side connections of coaxial switch S3
Multiple connection cables for being connect with all static sides of coaxial switch S5 of multiple connection cables be all different；
The standard parameter test circuit includes selected on-off circuit, the interior selection of the line between selected on-off circuit and line in line
One end of switching circuit is connect with the moved end of coaxial switch S3, and the other end of selected on-off circuit and coaxial switch S4's is dynamic in line
End connects, and one end of selected on-off circuit is connect with the moved end of coaxial switch S3 between line, the other end of selected on-off circuit between line
It is connect with the moved end of coaxial switch S5；
Selected on-off circuit includes selecting switch S2 in line in the line, the moved end of selecting switch S2 and coaxial switch in the line
The moved end of S3 connects, and a static side of selecting switch S2 is directly connect with the moved end of coaxial switch S4 in line, selecting switch S2 in line
Remaining static side connect respectively with the moved end of coaxial switch S4 by standard conducting resistance, standard breaking resistor；
Selected on-off circuit includes selecting switch S1 between line between the line, the moved end of selecting switch S1 and coaxial switch between the line
The moved end of S3 connects, and the first static side of selecting switch S1 is connect with test position C in line between line, the second of selecting switch S1 between line
Static side is connect with one end of proof voltage test voltage Table V, the moved end of the other end and coaxial switch S5 of proof voltage test voltage Table V
It connects, the third static side of selecting switch S1 is connect with one end of leakage current testing ammeter A between line, leakage current testing electric current
The other end of Table A is connect by current-limiting resistance with the moved end of coaxial switch S5, and remaining static side of selecting switch S1 is led to respectively between line
Cross the moved end connection of standard short-circuit resistance, insulation resistance and coaxial switch S5.
2. the calibrating installation of wire test instrument according to claim 1, it is characterized in that：The proof voltage test voltage Table V
Using moment maximum value memory-type voltmeter, leakage current testing ammeter A uses moment maximum value memory-type ammeter.
3. the calibrating installation of wire test instrument according to claim 1, it is characterized in that：In the multiport conversion circuit
Connection cable quantity is 1 ~ 256.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610015782.5A CN105487033B (en) | 2016-01-11 | 2016-01-11 | The calibrating installation of wire test instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610015782.5A CN105487033B (en) | 2016-01-11 | 2016-01-11 | The calibrating installation of wire test instrument |
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| CN105487033A CN105487033A (en) | 2016-04-13 |
| CN105487033B true CN105487033B (en) | 2018-09-21 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044961B (en) * | 2018-10-15 | 2022-06-10 | 吴茂祥 | Test machine self-checking system and test method |
| CN114113791B (en) * | 2021-11-30 | 2022-06-10 | 北京邦卓尔微电子有限公司 | System and method for testing insulation resistance and on-resistance of connector |
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Address after: 214101 spring new East Road, Xishan District, Wuxi, Jiangsu Province, No. 8 Applicant after: WUXI METROLOGY TESTING INSTITUTE Address before: 214101 spring new East Road, Xishan District, Wuxi, Jiangsu Province, No. 8 Applicant before: WUXI METERING DETECTING TEST CENTER |
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Effective date of registration: 20221109 Address after: 214101 No. 8, Dongting Chunxin East Road, Xishan District, Wuxi City, Jiangsu Province Patentee after: Wuxi inspection and Certification Institute Address before: 214101 spring new East Road, Xishan District, Wuxi, Jiangsu Province, No. 8 Patentee before: WUXI METROLOGY TESTING INSTITUTE |
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