CN201654216U - Calibrating device for capacitor high-temperature ageing system - Google Patents
Calibrating device for capacitor high-temperature ageing system Download PDFInfo
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- CN201654216U CN201654216U CN 201020115084 CN201020115084U CN201654216U CN 201654216 U CN201654216 U CN 201654216U CN 201020115084 CN201020115084 CN 201020115084 CN 201020115084 U CN201020115084 U CN 201020115084U CN 201654216 U CN201654216 U CN 201654216U
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Abstract
The utility model relates to a calibrating device for a capacitor high-temperature ageing system, which comprises a case (1), a special calibration plate (5) and an externally connected instrument dated from country/national defense standard, wherein the case (1) is internally provided with a controller (2), a data acquisition module (3) and an interchange switch module (4). The utility model has the advantages of applying an automated testing technology to the calibration, completely calibrating the parameters of the temperature, the leakage current, the supply voltage and the like of an ageing system, calibrating parameters in a plurality of ageing channels to be calibrated so that the calibrating efficiency is improved and the reliability of the ageing system is ensured while all parameters are completely calibrated, really realizing the value quantity tracing of the system, ensuring that the calibration process is automatic, reducing the influence of manual operation to the calibration result, and filling in a blank of the technology in China.
Description
Technical field
The utility model relates to Electronic Testing and field of measuring techniques, a kind of specifically capacitor high temperature ageing system calibration device.
Background technology
Capacitor high temperature ageing system is the major equipment of capacitor screening, applying under certain temperature equal stress condition, thereby provide the necessary electronic signal to make capacitor work make defective capacitor quicken to lose efficacy, do not destroy its integrality with the inherent shortcoming of quickening exposed capacitor, thereby reach the purpose of capacitor screening.
Capacitor high temperature ageing system need regularly carry out field calibration, otherwise not only can not play due aging action, injects new hidden danger can for because of the aging equipment property abnormality on the contrary the capacitor devices that is carrying out high-temperature circulation test.
Yet, at present the great majority producer that uses capacitor high temperature ageing system only calibrates the temperature of the high-temperature test chamber of ageing system, and parameters such as prior supply voltage, leakage current are calibrated, its result just directly has influence on the accuracy and the reliability of capacitor screening, this is a kind of incomplete calibrating mode, also is breakneck simultaneously.
The utility model content
The purpose of this utility model is the parameters of design a kind of energy comprehensive calibration capacitor high temperature ageing system, and quick, convenient, feasible and satisfy the capacitor high temperature ageing system calibration device of magnitude tracing requirement.
The utility model capacitor high temperature ageing system calibration device comprises: cabinet 1, special-purpose calibration plate 5 and the extension instrument of being traceable to country/national defence benchmark are provided with controller 2, data acquisition module 3 and alteration switch module 4 in the described cabinet 1; Described controller 2 is connected with data acquisition module 3 and alteration switch module 4 by the PXI bus in the cabinet 1, and uses this connection transmission of control signals; First anode of described data acquisition module 3, first negative terminal, second anode and second negative terminal all are connected with alteration switch module 4; Described alteration switch module 4 comprises first anode, first negative terminal, second anode, second negative terminal, two common ports and several tunnel ends, and the corresponding endpoint with extension instrument and special-purpose calibration plate 5 is connected respectively; First anode of the electronic load 6 of described extension instrument and first negative terminal are connected with the output terminal of aging test power supply; The platinum resistance thermometer sensor, 7 of described extension instrument is connected with the tunnel ends of alteration switch module 4.
Described cabinet 1 is a PXI bus cabinet, as America NI PXI-1042 series 8 scouring machine casees.
The controller (controller) that described controller 2 is the modular instrument special use is equipped with Labview virtual instrument calibration software.Controller 2 requires the above internal memory of 1G, the above processing speed of 2.0GHz, as America NI PXI-8108 controller.Calibration software comprises three main functional modules: temperature correction module, leakage current calibration module and power supply calibration module, these three modules are calibrated high-temperature test chamber, leakage current test circuit, aging test power supply respectively.
Described data acquisition module 3 adopts the PXI digital multimeter module of six and half above specifications, as six half words of America NI PXI-4072 multimeter module.
Described alteration switch module 4 adopts two alteration switches more than 64 tunnel, and requires more than the single channel maximum current 500mA, as America NI PXI-2527 multiplexer module.
Described special-purpose calibration plate 5 is made up of following several base parts: pcb board, resistance, ox horn socket, heating radiator, binding post etc.The profile of pcb board and interface imitation high temperature ageing plate design, resistance uses the soldering method to be fixed on the pcb board, heating radiator uses silica gel that high-power resistance is fixed, some ox horn sockets link to each other with pcb board interface and resistance respectively by the lead on the pcb board, and binding post links to each other with the Vcc of pcb board interface.Use winding displacement that relevant test signal is led to alteration switch module 4 by the ox horn socket during calibration, data acquisition module 3 links to each other with the binding post of special-purpose calibration plate 5 by an other connecting line.
Described extension instrument comprises electronic load 6 and platinum resistance thermometer sensor, 7.
The utility model capacitor high temperature ageing system calibration device is achieved in that alteration switch module 4 is by connecting line and electronic load 6, platinum resistance thermometer sensor, 7, special-purpose calibration plate 5 and aging output port of power source link to each other, with voltage, signals such as resistance are received the input end of data acquisition module 3, calibration software is provided with by the major parameter of the total demand pairs of PXI according to acquisition module 3 and alteration switch module 4, finish the quantification of signal and input in the controller 2, carry out the various parameters that data processing also calculates capacitor high temperature ageing system in real time by calibration software again, the uniformity coefficient that comprises temperature, fluctuation degree and temperature deviation, and the parameters such as leakage current of aging power source voltage and aging passage, and measurement result preserved and show intuitively, thereby realize calibration to aging equipment in the mode of chart.
The advantage of the utility model capacitor high temperature ageing system calibration device is: automatization testing technique is applied in the Equipment Alignment, can be to the temperature of ageing system, leakage current, parameters such as supply voltage are calibrated comprehensively, and can carry out parametric calibration work to most aging passages to be calibrated simultaneously, so all parameters are also being improved calibration efficiency in the calibration comprehensively, guaranteed the reliability of aging equipment, really realized the magnitude tracing of system, and make the calibration process robotization, reduced the influence of manual operation to calibration result, filled up the blank of China in this technology, significant beneficial effect is:
1) designed special-purpose calibration plate, realized calibration the leakage current parameter of all aging stations of ageing system;
2) robotization of calibration process of having adopted virtual instrument technology has improved calibration efficiency;
3) adopt modular instrument to realize the portability of calibrating installation;
4) to the ageing system of different model, only need redesign special-purpose calibration plate and calibration software, the hardware components of calibrating installation does not need to reconfigure, and makes calibrating installation possess versatility;
5) utilize the powerful software and hardware resources of controller, the data processing that can compare also can improve the resolution and the accuracy of measurement simultaneously.
Description of drawings
Fig. 1 is the structural representation of capacitor high temperature ageing system calibration device.
Fig. 2 is the process flow diagram of the software platform of calibrating installation.
Fig. 3 is the fundamental diagram of special-purpose calibration plate.
Fig. 4 is the topological structure synoptic diagram of alteration switch module.
Fig. 5 is the calibration line graph of aging test power supply.
Fig. 6 is the calibration line graph of high-temperature test chamber.
Fig. 7 is the calibration line graph of leakage current.
Embodiment
Shown in Fig. 1-7, a kind of capacitor high temperature ageing system calibration device comprises: cabinet 1, special-purpose calibration plate 5 and the extension instrument of being traceable to country/national defence benchmark are provided with controller 2, data acquisition module 3 and alteration switch module 4 in the described cabinet 1; Described cabinet 1 is America NI PXI-1042 series 8 scouring machine casees; Described controller 2 is an America NI PXI-8108 controller, and NI PXI-8108 controller is connected with data acquisition module 3 and alteration switch module 4 by the PXI bus in the cabinet 1; Described data acquisition module 3 is six half words of America NI PXI-4072 multimeter module, alteration switch module 4 is an America NI PXI-2527 multiplexer module, and first anode, first negative terminal, second anode and second negative terminal of six half words of NI PXI-4072 multimeter module all is connected with NI PXI-2527 multiplexer module; Described NI PXI-2527 multiplexer module comprises first anode, first negative terminal, second anode, second negative terminal, two common ports and several tunnel ends, and the corresponding endpoint with extension instrument and special-purpose calibration plate 5 is connected respectively; Described special-purpose calibration plate 5, consistent with the interface of ageing system, comprise a plurality of in order to the precision resistance of testing different leakage current value and the socket of drawing the leakage current parameter; First anode of the electronic load 6 of described extension instrument and first negative terminal are connected with the output terminal of aging test power supply; The platinum resistance thermometer sensor, 7 of described extension instrument is connected with the tunnel ends of NI PXI-2527 multiplexer module.
Described controller 2 is equipped with Labview virtual instrument calibration software.Calibration software comprises three main functional modules: temperature correction module, leakage current calibration module and power supply calibration module.
1, portable modular instrument group:
As shown in Figure 1, the hardware components of this device is made up of extension instrument, modular instrument group and special-purpose calibration plate 5, modular instrument group wherein is main calibration instrument, comprise data acquisition module 3, alteration switch module 4 and controller 2, these modules are all based on the PXI bus, and place PXI bus cabinet 1, realized the portability of main calibration instrument thus.
2, calibration software:
The process flow diagram of the calibration software in the utility model is as shown in Figure 2: calibration software is at first finished the isoparametric setting of gear, range, sample mode, scan channel of data acquisition module 3 and alteration switch module 4; And 4 pairs of control alteration switch modules measure passage and switch, and signals such as 3 pairs of DC voltage of control data acquisition module, alternating voltage, resistance are sampled; The data that obtain after the sampling are delivered to analysis and the processing that controller 2 carries out data, mainly gathered the leakage current calculating that the signal that comes carries out the analysis of the calculating of temperature uniformity, fluctuation degree and temperature deviation, aging supply voltage, aging passage; The demonstration of data is used for measured signal with form outputs such as charts intuitively with preserving, and the measurement result data are saved to file store.
Calibration software comprises three main functional modules: temperature correction module, leakage current calibration module and power supply calibration module, these three modules are calibrated high-temperature test chamber, leakage current test circuit, aging test power supply respectively.
3, special-purpose calibration plate:
Hardware configuration and aging principle according to capacitor high temperature ageing system, design is also made the special-purpose calibration plate 5 that meets the ageing system interface, as required, design simulation load circuit on special-purpose calibration plate 5, and use the winding displacement form that relevant test signal is drawn.By winding displacement test signal is caused alteration switch module 4 during calibration.The schematic diagram of this calibration plate as shown in Figure 3, dotted line wherein represents to connect the special-purpose connecting line of alteration switch module 4 and special-purpose calibration plate 5 interfaces.Calibration plate is provided with n group resistance, and each group resistance is used for a leakage current test point is calibrated; Rn represents one group of resistance of m same model altogether, the respectively corresponding passage of each resistance, and resistance is connected in the passage on circuit board; Same group of resistance is connected in the high temperature ageing system by the interface on the calibration plate, and data acquisition module 3 utilizes alteration switch module 4 to carry out interchannel switching during measurement, the magnitude of voltage at each first measure R n two ends, the resistance value of measure R n again.
4, dynamic reconfigurable alteration switch module:
This alteration switch module 4 can be set to specific topological structure according to demand, and open and close the signalling channel of appointment, the signal of needs is passed to data acquisition module 3 carry out data acquisition and transfer to controller 2 and carry out operations such as data processing, analysis and result's demonstration, stores processor.The topological structure of the alteration switch module 4 that designs by three functional modules of calibration software as shown in Figure 4 respectively, two alteration switches in Switch1 and the Switch2 indication device wherein, " 4-Wire 16 * 1 " and " 1-Wire 64 * 1 " are the titles of alteration switch module 4 topological structures, the tunnel name of the alteration switch module 4 that the character representation in the parenthesis is used in specifying topological structure.
(1) calibration aging test power supply
To the calibration of aging power supply, need to adopt mode as shown in Figure 5 that alteration switch module 4 is configured, wherein the topological structure of the character representation alteration switch module 4 in the parenthesis.Between the COM0-and 1WREF0 of Switch2, and the dotted line between COM1-and the 1WREF1, being illustrated under this topology, COM0-is communicated with 1WREF0, and COM1-also is communicated with 1WREF1.Wherein 1WREF0 and 1WREF1 represent two common ports of alteration switch module 4, and COM0+ represents first anode, and COM0-represents first negative terminal, and COM1+ represents second anode, and COM1-represents second negative terminal, and chn represents channel number.DMM among the figure represents data acquisition module 3, and all solid lines are all represented lead among the figure, wherein is added with the banana joint on two leads that link to each other with aging power supply.After alteration switch module 4 configuration finishes, directly utilize data acquisition module 3 just can measure parameters such as the supply voltage of aging test power supply and ripple.
(2) calibration high-temperature test chamber
During the calibration high-temperature test chamber, the connection mode of this device as shown in Figure 6.All solid lines are all represented lead among the figure, and wherein the platinum resistance thermometer sensor, 7 usefulness filled circles of high-temperature cabinet inside conductor end are represented.Omission between ch1 and the ch9 represents that one has 9 passages, and 9 passages of this of Switch2 link to each other with 9 platinum resistance thermometer sensor,s 7 respectively by 4 line connections.The topological structure of the character representation alteration switch module 4 in the parenthesis wherein.
After 4 configurations of alteration switch module finish, utilize calibration software may command data acquisition module 3 to utilize four-wire method to measure the resistance of platinum resistance thermometer sensor, 7, and utilize mathematical model to be converted into temperature value, after measurement finished, calibration software utilized corresponding mathematical model to calculate temperature uniformity, temperature fluctuation and temperature deviation automatically once more.
(3) calibration leakage current
The connection mode of calibration leakage current as shown in Figure 7.Wherein, between the COM0-and 1WREF0 of Switch2, and the dotted line between COM1-and the 1WREF1, being illustrated under this topology, COM0-is communicated with 1WREF0, and COM1-also is communicated with 1WREF1.All solid lines are all represented lead among the figure, wherein hold on the lead that links to each other with the VCC of special-purpose calibration plate 5 to be added with the banana joint.A total m passage represented in omission between ch1 and the chm, and this m passage of Switch1 is connected with socket on the special-purpose calibration plate 5 by winding displacement.The topological structure of the character representation alteration switch in the parenthesis.
The basic skills of calibration is a resistance in series in passage, utilizes calibrating installation to measure the voltage at this resistance value and resistance two ends, thereby calculates current value.With a burn-in board is unit, and primary calibration covers m passage on the calibration plate.One wheel operation of calibration comprises: 1) insert special-purpose calibration plate 5, test m channel voltage automatically; 2) cut off aging power supply, extract special-purpose calibration plate 5, test m aisle resistance automatically, and calculate the leakage current value of m passage automatically; 3) utilize winding displacement to switch to next group resistance.Each takes turns the resistance of the corresponding one group of same model of test, and a total k group resistance promptly need carry out k wheel test (quantity of test point when k represents the leakage current calibration).
5, the mode of measuring voltage and resistance is taked in the calibration of leakage current:
Utilize data acquisition module 3 to measure the voltage at resistance two ends on the special-purpose calibration plate 5 earlier, measure the resistance value of same resistance again, utilize voltage/resistance to draw corresponding current value, it is more accurate to the measurement result of little electric current that this mode makes.
The utility model is not limited to an above embodiment, and can realize a plurality of embodiment based on the combination of a plurality of different model modules.
Claims (3)
1. capacitor high temperature ageing system calibration device, comprise: cabinet (1), it is characterized in that: the extension instrument that also has special-purpose calibration plate (5) and be traceable to country/national defence benchmark is provided with controller (2), data acquisition module (3) and alteration switch module (4) in the described cabinet (1); Described controller (2) is connected with data acquisition module (3) and alteration switch module (4) by the PXI bus in the cabinet (1); First anode of described data acquisition module (3), first negative terminal, second anode and second negative terminal all are connected with alteration switch module (4); Described alteration switch module (4) comprises first anode, first negative terminal, second anode, second negative terminal, two common ports and several tunnel ends, and the corresponding endpoint with extension instrument and special-purpose calibration plate (5) is connected respectively; First anode of the electronic load of described extension instrument (6) and first negative terminal are connected with the output terminal of aging test power supply; The platinum resistance thermometer sensor, of described extension instrument (7) is connected with the tunnel ends of alteration switch module (4).
2. capacitor high temperature ageing system calibration device according to claim 1, it is characterized in that: described controller (2) is the controller of modular instrument special use, and the virtual instrument calibration software is installed; Described calibration software comprises three main functional modules, i.e. temperature correction module, leakage current calibration module and power supply calibration module.
3. capacitor high temperature ageing system calibration device according to claim 1, it is characterized in that: described special-purpose calibration plate (5) is made up of following several base parts: pcb board, resistance, ox horn socket, heating radiator, binding post etc.; The profile of pcb board and interface imitation high temperature ageing plate design, resistance uses soldering to be fixed on the pcb board, heating radiator uses silica gel that high-power resistance is fixed, some ox horn sockets link to each other with pcb board interface and resistance respectively by the lead on the pcb board, and binding post links to each other with the Vcc of pcb board interface; Use winding displacement that relevant test signal is led to alteration switch module (4) by the ox horn socket during calibration, data acquisition module (3) links to each other with the binding post of special-purpose calibration plate (5) by an other connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020115084 CN201654216U (en) | 2010-02-09 | 2010-02-09 | Calibrating device for capacitor high-temperature ageing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020115084 CN201654216U (en) | 2010-02-09 | 2010-02-09 | Calibrating device for capacitor high-temperature ageing system |
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| Publication Number | Publication Date |
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| CN201654216U true CN201654216U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201020115084 Expired - Lifetime CN201654216U (en) | 2010-02-09 | 2010-02-09 | Calibrating device for capacitor high-temperature ageing system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086370A1 (en) * | 2014-12-03 | 2016-06-09 | Abb Technology Ltd | Calibration method for expansion board to be used for modularized automation device, calibration system and automation device using the same |
| CN106597183A (en) * | 2016-12-14 | 2017-04-26 | 北京元六鸿远电子科技股份有限公司 | Device and method for measuring capacitors in batches |
| CN110308360A (en) * | 2019-07-16 | 2019-10-08 | 南通江海储能技术有限公司 | A kind of capacitance aging test device of lithium |
| CN111054663A (en) * | 2019-12-25 | 2020-04-24 | 株洲宏达电子股份有限公司 | Screening method of high-reliability tantalum capacitor |
| CN112858829A (en) * | 2021-03-16 | 2021-05-28 | 广州虹科电子科技有限公司 | Capacitor aging test system and current detection module thereof |
-
2010
- 2010-02-09 CN CN 201020115084 patent/CN201654216U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086370A1 (en) * | 2014-12-03 | 2016-06-09 | Abb Technology Ltd | Calibration method for expansion board to be used for modularized automation device, calibration system and automation device using the same |
| CN106597183A (en) * | 2016-12-14 | 2017-04-26 | 北京元六鸿远电子科技股份有限公司 | Device and method for measuring capacitors in batches |
| CN110308360A (en) * | 2019-07-16 | 2019-10-08 | 南通江海储能技术有限公司 | A kind of capacitance aging test device of lithium |
| CN111054663A (en) * | 2019-12-25 | 2020-04-24 | 株洲宏达电子股份有限公司 | Screening method of high-reliability tantalum capacitor |
| CN112858829A (en) * | 2021-03-16 | 2021-05-28 | 广州虹科电子科技有限公司 | Capacitor aging test system and current detection module thereof |
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Granted publication date: 20101124 |
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| CX01 | Expiry of patent term |