CN105487033A - Calibration device of wire rod tester - Google Patents
Calibration device of wire rod tester Download PDFInfo
- Publication number
- CN105487033A CN105487033A CN201610015782.5A CN201610015782A CN105487033A CN 105487033 A CN105487033 A CN 105487033A CN 201610015782 A CN201610015782 A CN 201610015782A CN 105487033 A CN105487033 A CN 105487033A
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- Prior art keywords
- coaxswitch
- line
- circuit
- quiet
- wire
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention relates to a calibration device of a wire rod tester. According to the technical schemes provided by the invention, the calibration device of the wire rod tester includes a multi-port conversion circuit used for connecting a wire rod tester to be calibrated and a standard parameter test circuit used for realizing performance calibration of the wire rod tester; and the standard parameter test circuit is connected with the multi-port conversion circuit through coaxial switch circuits. According to the calibration device of the wire rod tester, the connecting end A and the connecting end B of the multi-port conversion circuit can be in matching connection with the wire rod tester; corresponding connecting flat cables in the multi-port conversion circuit can be selected through the coaxial switch circuit; performance calibration of in-wire on resistance, in-wire breakage resistance, inter-wire insulation resistance, inter-wire short-circuited resistance, withstand voltage test, leakage current test and a point searching function can be realized through using the selection ability of an in-wire selective switch circuit and an inter-wire selective switch circuit. The calibration device has the advantages of high calibration efficiency, wide application range, safety and reliability.
Description
Technical field
The present invention relates to a kind of calibrating installation, especially a kind of calibrating installation of wire test instrument, belong to the technical field of wire test instrument calibration.
Background technology
The instrumentation that wire rod (winding displacement) tester is test for various electronics, telecommunication wire rod and connector and designs, the distribution being widely used in the field such as computer, communication detects.Wire test instrument, except carrying out wire rod except the test of general short circuit, open circuit, also carries out resistance test to connecting line itself and connecting line and joint, tests the insulation impedance of any two connecting lines, voltage-withstand test, leakage current testing.Underproof wire rod can be checked out by the test of wire test instrument, and accurately can judge which end points has short circuit or open circuit phenomenon.There is no corresponding measurement and calibration specification in China's the most authoritative existing " People's Republic of China's national measurement technical specification " catalogue, thus there is no corresponding special calibrating installation yet.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of calibrating installation of wire test instrument, its compact conformation, can realize the effective calibration to wire test instrument, calibration efficiency is high, wide accommodation, safe and reliable.
According to technical scheme provided by the invention, the calibrating installation of described wire test instrument, comprise for connecting multiport change-over circuit that wire test instrument to be calibrated connects and for realizing the canonical parameter test circuit to wire test instrument performance calibration ability, described canonical parameter test circuit is connected with multiport change-over circuit by coaxswitch circuit;
Described multiport change-over circuit comprises the connection winding displacement that multiply is arranged in parallel, and in multiport change-over circuit, one end of all connection winding displacements forms link A, and in multiport change-over circuit, the other end of all connection winding displacements forms link B;
Described coaxswitch circuit comprises coaxswitch S3, coaxswitch S4 and coaxswitch S5, the moved end of described coaxswitch S3, the moved end of coaxswitch S4 and the moved end of coaxswitch S5 are all connected with canonical parameter test circuit, the multiple quiet end of coaxswitch S3, the multiple quiet end of coaxswitch S4, the multiple quiet end of coaxswitch S5 is corresponding with the multiple connection winding displacements in multiport change-over circuit respectively to be connected, wherein, multiple connection winding displacements that multiple connection winding displacement that all quiet ends of coaxswitch S3 connect and coaxswitch S4 many quiet ends connect are consistent, multiple connection winding displacements that multiple connection winding displacement that all quiet ends of coaxswitch S3 connect and all quiet ends of coaxswitch S5 connect are all not identical,
Described canonical parameter test circuit to comprise in line selected on-off circuit between selected on-off circuit and line, in described line, one end of selected on-off circuit is connected with the moved end of coaxswitch S3, in line, the other end of selected on-off circuit is connected with the moved end of coaxswitch S4, between line, one end of selected on-off circuit is connected with the moved end of coaxswitch S3, and between line, the other end of selected on-off circuit is connected with the moved end of coaxswitch S5.
In described line, selected on-off circuit comprises selector switch S2 in line, in described line, the moved end of selector switch S2 is connected with the moved end of coaxswitch S3, in line, one of selector switch S2 quiet end is directly connected with the moved end of coaxswitch S4, and in line, all the other quiet ends of selector switch S2 are connected with the moved end of coaxswitch S4 respectively by standard breaking resistor, standard breaking resistor.
Between described line, selected on-off circuit comprises selector switch S1 between line, between described line, the moved end of selector switch S1 is connected with the moved end of coaxswitch S3, between line, first of selector switch S1 the quiet end is connected with line build-in test position C, between line, second of selector switch S1 the quiet end is connected with one end of proof voltage test voltage Table V, the other end of proof voltage test voltage Table V is connected with the moved end of coaxswitch S5, between line, the 3rd quiet end of selector switch S1 is connected with one end of leakage current testing reometer A, the other end of leakage current testing reometer A is connected by the moved end of current-limiting resistance with coaxswitch S5, between line, all the other quiet ends of selector switch S1 are respectively by standard short-circuit resistance, insulation resistance is connected with the moved end of coaxswitch S5.
Described proof voltage test voltage Table V adopts moment maximal value memory-type voltage table, and leakage current testing reometer A adopts moment maximal value memory-type reometer.
Connection winding displacement quantity in described multiport change-over circuit is 1 ~ 256.
Advantage of the present invention: utilize the link A of multiport change-over circuit, link B can mate with wire test instrument and be connected, utilize coaxswitch circuit can select to connect winding displacement accordingly in multiport change-over circuit, the corresponding selective power of selected on-off circuit between selected on-off circuit in line, line is utilized to realize breaking resistor, wire insulation resistance, short-circuit between conductors resistance, proof voltage test, leakage current testing in conducting resistance, line in the line of wire test instrument and the performance calibration looking for a function, calibration efficiency is high, wide accommodation, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Figure 1: in order to the effective calibration to wire test instrument can be realized, improve the calibration efficiency to wire test instrument, the present invention includes for connecting multiport change-over circuit that wire test instrument to be calibrated connects and for realizing the canonical parameter test circuit to wire test instrument performance calibration ability, described canonical parameter test circuit is connected with multiport change-over circuit by coaxswitch circuit;
Described multiport change-over circuit comprises the connection winding displacement that multiply is arranged in parallel, and in multiport change-over circuit, one end of all connection winding displacements forms link A, and in multiport change-over circuit, the other end of all connection winding displacements forms link B;
Described coaxswitch circuit comprises coaxswitch S3, coaxswitch S4 and coaxswitch S5, the moved end of described coaxswitch S3, the moved end of coaxswitch S4 and the moved end of coaxswitch S5 are all connected with canonical parameter test circuit, the multiple quiet end of coaxswitch S3, the multiple quiet end of coaxswitch S4, the multiple quiet end of coaxswitch S5 is corresponding with the multiple connection winding displacements in multiport change-over circuit respectively to be connected, wherein, multiple connection winding displacement that all quiet ends of coaxswitch S3 connect is consistent with multiple connection winding displacements that coaxswitch S4 has quiet end to connect more, multiple connection winding displacements that multiple connection winding displacement that all quiet ends of coaxswitch S3 connect and all quiet ends of coaxswitch S5 connect are all not identical,
Described canonical parameter test circuit to comprise in line selected on-off circuit between selected on-off circuit and line, in described line, one end of selected on-off circuit is connected with the moved end of coaxswitch S3, in line, the other end of selected on-off circuit is connected with the moved end of coaxswitch S4, between line, one end of selected on-off circuit is connected with the moved end of coaxswitch S3, and between line, the other end of selected on-off circuit is connected with the moved end of coaxswitch S5.
Particularly, connection winding displacement quantity in described multiport change-over circuit is 1 ~ 256, link A, link B have the port number of equal number, the port number of link A, link B is consistent with the quantity connecting winding displacement, connects by link A, link B are corresponding with wire test instrument.The quantity connecting winding displacement in multiport change-over circuit can be determined according to calibrated wire test instrument, namely mates with wire test instrument the needs be connected be as the criterion meeting, be specially known by the art personnel, repeat no more herein.
Coaxswitch S3, coaxswitch S4 and coaxswitch S5 have identical operating axis, coaxswitch S3, coaxswitch S4 and coaxswitch S5 can select corresponding quiet end, in wire test instrument, line, selected on-off circuit can select same in multiport change-over circuit to connect winding displacement by the quiet end of coaxswitch S3, the quiet end of coaxswitch S4, the described connection winding displacement chosen can form a loop with selected on-off circuit in wire test instrument, line, and what can realize wire test instrument looks for a functional test; And the quiet end of coaxswitch S3 and the quiet end of coaxswitch S5 can select different connection winding displacements, between wire test instrument, line, selected on-off circuit can form a connection line by the quiet end of coaxswitch S3, the quiet end of coaxswitch S4, thus can test the validity of wire rod tester functional test between difference connection winding displacement.
Further, in described line, selected on-off circuit comprises selector switch S2 in line, in described line, the moved end of selector switch S2 is connected with the moved end of coaxswitch S3, in line, one of selector switch S2 quiet end is directly connected with the moved end of coaxswitch S4, and in line, all the other quiet ends of selector switch S2 are connected with the moved end of coaxswitch S4 respectively by standard conducting resistance, standard breaking resistor.
In the embodiment of the present invention, the quiet end that in line, selector switch S2 and coaxswitch S4 are directly connected forms test position D between line, in figure, resistance R6, resistance R7, resistance R8 and resistance 9 is standard conducting resistance or standard breaking resistor, wherein, the resistance of standard breaking resistor is much larger than the resistance of standard conducting resistance, meet the test request to wire test instrument, in line, the quantity of selector switch S2 quiet end connection standard breaking resistor can be carried out selection as required and determined, be specially known by the art personnel, repeat no more herein.
Further, between above-mentioned line, selected on-off circuit comprises selector switch S1 between line, between described line, the moved end of selector switch S1 is connected with the moved end of coaxswitch S3, between line, first of selector switch S1 the quiet end is connected with line build-in test position C, between line, second of selector switch S1 the quiet end is connected with one end of proof voltage test voltage Table V, the other end of proof voltage test voltage Table V is connected with the moved end of coaxswitch S5, between line, the 3rd quiet end of selector switch S1 is connected with one end of leakage current testing reometer A, the other end of leakage current testing reometer A is connected by the moved end of current-limiting resistance with coaxswitch S5, between line, all the other quiet ends of selector switch S1 are respectively by standard short-circuit resistance, insulation resistance is connected with the moved end of coaxswitch S5.
In the embodiment of the present invention, described proof voltage test voltage Table V adopts moment maximal value memory-type voltage table, and leakage current testing reometer A adopts moment maximal value memory-type reometer.When between line, the moved end selection of selector switch S1 forms the first quiet end of line build-in test position C, then between line, selected on-off circuit is in off state.The standard short-circuit resistance that between line, the quiet end of selector switch S1 connects, the quantity of insulation resistance can be carried out selection as required and be determined, are specially known by the art personnel, repeat no more herein.In figure, resistance R1, resistance R2, resistance R3 and resistance R4 are standard short-circuit resistance or insulation resistance, the resistance of insulation resistance is greater than standard breaking resistor, the concrete resistance of standard conducting resistance, standard breaking resistor, insulation resistance and standard short-circuit resistance is chosen as known by the art personnel, repeats no more herein.
When calibrating wire test instrument, the link A of multiport change-over circuit, link B being mated with wire test instrument and is connected.Look for conducting resistance in a function, line when calibration wire rod tester, in line, corresponding standard conducting resistance is selected in the moved end of selector switch S2, and between line, online build-in test position C is beaten in the moved end of selector switch S1; And in the line of calibration wire rod tester during breaking resistor, in line, corresponding standard breaking resistor is selected in the moved end of selector switch S2, and between line, online build-in test position C is beaten in the moved end of selector switch S1.When calibrating the wire insulation resistance of wire rod tester, between line, selector switch S1 selects corresponding insulation resistance, now in line selector switch S2 beat online between test position D; When calibrating the short-circuit between conductors resistance of wire rod tester, between line, selector switch S1 selects corresponding standard short-circuit resistance, in line selector switch S2 online between test position D; The detection calibration result of breaking resistor, wire insulation resistance, short-circuit between conductors resistance in conducting resistance, line in a function, line is obtained looking for by the Presentation Function of wire test instrument self.
When calibrating the proof voltage of wire rod tester, between line, the second quiet end is selected in the moved end of selector switch S1, and in line, test position D between line is selected in the moved end of selector switch S2, utilizes the proof voltage that proof voltage test voltage Table V can meet with a response.When calibrating the leakage current of wire rod tester, between line, the 3rd quiet end is selected in the moved end of selector switch S1, and in line, selector switch S2 selects test position D between line, can obtain corresponding leakage current by leakage current testing reometer A.
The present invention utilizes the link A of multiport change-over circuit, link B can mate with wire test instrument to be connected, utilize coaxswitch circuit can select to connect winding displacement accordingly in multiport change-over circuit, the corresponding selective power of selected on-off circuit between selected on-off circuit in line, line is utilized to realize breaking resistor, wire insulation resistance, short-circuit between conductors resistance, proof voltage test, leakage current testing in conducting resistance, line in the line of wire test instrument and the performance calibration looking for a function, calibration efficiency is high, wide accommodation, safe and reliable.
Claims (5)
1. the calibrating installation of a wire test instrument, it is characterized in that: comprise for connecting multiport change-over circuit that wire test instrument to be calibrated connects and for realizing the canonical parameter test circuit to wire test instrument performance calibration ability, described canonical parameter test circuit is connected with multiport change-over circuit by coaxswitch circuit;
Described multiport change-over circuit comprises the connection winding displacement that multiply is arranged in parallel, and in multiport change-over circuit, one end of all connection winding displacements forms link A, and in multiport change-over circuit, the other end of all connection winding displacements forms link B;
Described coaxswitch circuit comprises coaxswitch S3, coaxswitch S4 and coaxswitch S5, the moved end of described coaxswitch S3, the moved end of coaxswitch S4 and the moved end of coaxswitch S5 are all connected with canonical parameter test circuit, the multiple quiet end of coaxswitch S3, the multiple quiet end of coaxswitch S4, the multiple quiet end of coaxswitch S5 is corresponding with the multiple connection winding displacements in multiport change-over circuit respectively to be connected, wherein, multiple connection winding displacements that multiple connection winding displacement that all quiet ends of coaxswitch S3 connect and coaxswitch S4 many quiet ends connect are consistent, multiple connection winding displacements that multiple connection winding displacement that all quiet ends of coaxswitch S3 connect and all quiet ends of coaxswitch S5 connect are all not identical,
Described canonical parameter test circuit to comprise in line selected on-off circuit between selected on-off circuit and line, in described line, one end of selected on-off circuit is connected with the moved end of coaxswitch S3, in line, the other end of selected on-off circuit is connected with the moved end of coaxswitch S4, between line, one end of selected on-off circuit is connected with the moved end of coaxswitch S3, and between line, the other end of selected on-off circuit is connected with the moved end of coaxswitch S5.
2. the calibrating installation of wire test instrument according to claim 1, it is characterized in that: in described line, selected on-off circuit comprises selector switch S2 in line, in described line, the moved end of selector switch S2 is connected with the moved end of coaxswitch S3, in line, one of selector switch S2 quiet end is directly connected with the moved end of coaxswitch S4, and in line, all the other quiet ends of selector switch S2 are connected with the moved end of coaxswitch S4 respectively by standard breaking resistor, standard breaking resistor.
3. the calibrating installation of wire test instrument according to claim 1, it is characterized in that: between described line, selected on-off circuit comprises selector switch S1 between line, between described line, the moved end of selector switch S1 is connected with the moved end of coaxswitch S3, between line, first of selector switch S1 the quiet end is connected with line build-in test position C, between line, second of selector switch S1 the quiet end is connected with one end of proof voltage test voltage Table V, the other end of proof voltage test voltage Table V is connected with the moved end of coaxswitch S5, between line, the 3rd quiet end of selector switch S1 is connected with one end of leakage current testing reometer A, the other end of leakage current testing reometer A is connected by the moved end of current-limiting resistance with coaxswitch S5, between line, all the other quiet ends of selector switch S1 are respectively by standard short-circuit resistance, insulation resistance is connected with the moved end of coaxswitch S5.
4. the calibrating installation of wire test instrument according to claim 3, is characterized in that: described proof voltage test voltage Table V adopts moment maximal value memory-type voltage table, and leakage current testing reometer A adopts moment maximal value memory-type reometer.
5. the calibrating installation of wire test instrument according to claim 1, is characterized in that: the connection winding displacement quantity in described multiport change-over circuit is 1 ~ 256.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610015782.5A CN105487033B (en) | 2016-01-11 | 2016-01-11 | The calibrating installation of wire test instrument |
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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 true CN105487033A (en) | 2016-04-13 |
| CN105487033B CN105487033B (en) | 2018-09-21 |
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Cited By (2)
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| CN111044961A (en) * | 2018-10-15 | 2020-04-21 | 吴茂祥 | Test machine self-checking system and test method |
| CN114113791A (en) * | 2021-11-30 | 2022-03-01 | 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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| CN111044961A (en) * | 2018-10-15 | 2020-04-21 | 吴茂祥 | Test machine self-checking system and test method |
| CN114113791A (en) * | 2021-11-30 | 2022-03-01 | 北京邦卓尔微电子有限公司 | System and method for testing insulation resistance and on-resistance of connector |
| 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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| CN105487033B (en) | 2018-09-21 |
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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 |