CN104299502A - Reliability technology teaching experiment system - Google Patents
Reliability technology teaching experiment system Download PDFInfo
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- CN104299502A CN104299502A CN201410567586.XA CN201410567586A CN104299502A CN 104299502 A CN104299502 A CN 104299502A CN 201410567586 A CN201410567586 A CN 201410567586A CN 104299502 A CN104299502 A CN 104299502A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 102
- 238000005516 engineering process Methods 0.000 title abstract description 4
- 238000012360 testing method Methods 0.000 claims abstract description 49
- 125000004122 cyclic group Chemical group 0.000 claims description 21
- 238000013461 design Methods 0.000 claims description 7
- 230000005284 excitation Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000035882 stress Effects 0.000 description 34
- 238000004458 analytical method Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000006353 environmental stress Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/187—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for measuring instruments
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
一种可靠性技术教学实验系统，包括：上位控制微机、高低温循环试验箱、总线式实验架、温控仪表、电应力加载/测量系统和程控电源；分立电子元器件作为实验对象，安插在相应的实验板上，实验板安插在高低温循环试验箱内的总线式实验架上。上位控制微机安装定制开发的系统控制软件，可集成控制应力加载和在线测试。通过温控仪表控制高低温循环试验箱的温度变化；通过电应力加载系统和程控电源控制实验板所承受的电应力；通过电应力测量系统实时在线采集实验板上各个实验器件的可靠性特征量的测量数据。上位控制微机、高低温循环试验箱、总线式实验架、温控仪表、电应力加载/测量系统及程控电源集成布置在一体化的机柜中，实验板在实验时按需选用。
A reliability technology teaching experiment system, including: upper control microcomputer, high and low temperature cycle test box, bus-type experiment frame, temperature control instrument, electrical stress loading/measurement system and program-controlled power supply; discrete electronic components are used as experimental objects, placed in Corresponding experimental board, the experimental board is placed on the bus type experimental rack in the high and low temperature cycle test box. The upper control microcomputer installs the custom-developed system control software, which can integrate control stress loading and online testing. Control the temperature change of the high and low temperature cycle test chamber through the temperature control instrument; control the electrical stress on the experimental board through the electrical stress loading system and the program-controlled power supply; collect the reliability characteristics of each experimental device on the experimental board in real time through the electrical stress measurement system measurement data. The upper control microcomputer, high and low temperature cycle test chamber, bus-type test rack, temperature control instrument, electrical stress loading/measurement system and program-controlled power supply are integrated and arranged in the integrated cabinet, and the test board is selected as needed during the experiment.
Description
Technical field
The present invention relates to reliability education experiment field, more particularly, the present invention relates to a kind of reliability engineering teaching experiment system.
Background technology
Reliability testing experiment is for understanding and the reliability of analytic product or element; Reliability testing experiment also can be used for the defect finding product or element, provides foundation for product or element improve.
For the test experiments of the reliability characteristic of the discrete electronic devices and components of low value low-voltage of the routine of such as diode, LED, electric capacity and so on, be the course that practicality is very strong, with circuit design and the engineer applied close relation of reality; This reliability engineering education experiment also occupies very consequence in the teaching of school.
At present, domestic do not have the special Special complete equipment towards colleges and universities' reliability education experiment.In current reliability engineering education experiment, it is all generally the experimental teaching adopting the teaching material of the educational aid of dispersion (comprising experiment components and parts, breakboard construction, experiment test instrument etc.) and dispersion to carry out (comprising paper material and/or electronic courseware material etc.) separate type.
In the prior art, reliability education experiment due to the restriction of experimental period, experiment condition, thus is difficult to allow overall process, the total factor of the various fail-test of students experience.
Summary of the invention
Technical matters to be solved by this invention is for there is above-mentioned defect in prior art, a kind of reliability engineering teaching experiment system is provided, it can allow overall process, the total factor of the various fail-test of students experience, strengthens the understanding to reliability theory and test.
In order to realize above-mentioned technical purpose, according to the present invention, provide a kind of reliability engineering teaching experiment system, comprising: upper control microcomputer, high/low temperature cyclic test case, bus type experiment frame, programmable power supply, temperature control instrument and electric stress loading/measuring system; Wherein, bus type experiment frame is arranged in high/low temperature cyclic test case; Described upper control microcomputer is connected to described bus type experiment frame to provide test and excitation signal to described bus type experiment frame and to receive test result signal from described bus type experiment frame; Described upper control microcomputer is connected to temperature control instrument to control the temperature of high/low temperature cyclic test case; Described upper control microcomputer is connected to described electric stress loading/measuring system to provide indicator signal to described electric stress loading/measuring system and to receive results of stress signal from described electric stress loading/measuring system; Described electric stress loading/measuring system provides stress according to described indicator signal to the bus type experiment frame in described high/low temperature cyclic test case, and exports results of stress signal according to the feedback information received from bus type experiment frame to described upper control microcomputer; Further, described upper control microcomputer is connected to programmable power supply to receive electric energy; And wherein, described upper control microcomputer, described high/low temperature cyclic test case, described programmable power supply, described temperature control instrument and described electric stress loading/measuring system are arranged in housing.
Preferably, described reliability engineering teaching experiment system also comprises: experiment brassboard and discrete electronic devices and components; Wherein, the compatible multiple discrete electronic devices and components of each experiment brassboard; And described discrete electronic devices and components insert described experiment brassboard when testing, described experiment brassboard inserts the bus type experiment frame in described high/low temperature cyclic test case when testing.
Preferably, the storage drawer for placing brassboard and discrete electronic devices and components is also furnished with in the housing.
Preferably, the drawer for placing keyboard and the mouse be connected with described upper control microcomputer is also furnished with in the housing.
Preferably, housing is furnished with the power switch of the opening and closing for controlling described programmable power supply.
Preferably, housing is furnished with the meter switch of the opening and closing for controlling described temperature control instrument.
Preferably, described meter switch controls the design temperature of described temperature control instrument.
Preferably, described reliability engineering teaching experiment system also comprises compressor, evaporator, well heater, condenser.
Accompanying drawing explanation
By reference to the accompanying drawings, and by reference to detailed description below, will more easily there is more complete understanding to the present invention and more easily understand its adjoint advantage and feature, wherein:
Fig. 1 schematically shows the functional block diagram of reliability engineering teaching experiment system according to the preferred embodiment of the invention.
Fig. 2 schematically shows the schematic appearance of reliability engineering teaching experiment system according to the preferred embodiment of the invention.
It should be noted that, accompanying drawing is for illustration of the present invention, and unrestricted the present invention.Note, represent that the accompanying drawing of structure may not be draw in proportion.Further, in accompanying drawing, identical or similar element indicates identical or similar label.
Embodiment
In order to make content of the present invention clearly with understandable, below in conjunction with specific embodiments and the drawings, content of the present invention is described in detail.
Fig. 1 schematically shows the functional block diagram of reliability engineering teaching experiment system according to the preferred embodiment of the invention.And Fig. 2 schematically shows the schematic appearance of reliability engineering teaching experiment system according to the preferred embodiment of the invention.
As shown in Figure 1, reliability engineering teaching experiment system can comprise according to the preferred embodiment of the invention: upper control microcomputer 200, internal placement have the high/low temperature cyclic test case 100 of bus type experiment frame, programmable power supply 400, temperature control instrument 500 and electric stress loading/measuring system 600.
The system controlling software of customized development installed by upper control microcomputer 200, can integrating control stress loading and on-line testing; Wherein, the temperature variation of high/low temperature cyclic test case is controlled by temperature control instrument; By the electric stress that electric stress loading system (part of functions of electric stress loading/measuring system 600) and programmable power supply Control release plate are born; The measurement data of the characteristic quantities of each experiment apparatus on brassboard is gathered by electric stress measuring system (being also the part of functions of electric stress loading/measuring system 600) real-time online.Upper control microcomputer, high/low temperature cyclic test case, bus type experiment frame, temperature control instrument, electric stress loading/measuring system and programmable power supply are integrated to be arranged in the rack of integration, and brassboard (brassboard will hereafter will described) is selected as required when testing.
Specifically, described upper control microcomputer 200 is connected to described bus type experiment frame to provide test and excitation signal to described bus type experiment frame and to receive test result signal from described bus type experiment frame.
Wherein, described upper control microcomputer 200 is connected to temperature control instrument 500 to control the temperature of high/low temperature cyclic test case 100.Such as, the temperature-control range of high/low temperature cyclic test case is-25 ~ 150 DEG C, and controlled by temperature control instrument 500, temperature control instrument 500 has RS232/485 communication interface, can accept the control of upper control microcomputer 200.
And described upper control microcomputer 200 is connected to described electric stress loading/measuring system 600 to provide indicator signal to described electric stress loading/measuring system 600 and to receive results of stress signal from described electric stress loading/measuring system 600.
Such as, described electric stress loading/measuring system 600 provides following electric stress condition: (1) positively biased constant current: 16 road 1A load capabilities, and (2) are reverse-biased withstand voltage: 32 road 30V load capabilities; Wherein, just reverse-biasedly each device creepage, electrical quantity such as knot pressure etc. can all independently be measured online.
Described electric stress loading/measuring system 600 provides stress according to described indicator signal to the bus type experiment frame in described high/low temperature cyclic test case 100, and exports results of stress signal according to the feedback information received from bus type experiment frame to described upper control microcomputer 200.
Further, described upper control microcomputer 200 is connected to programmable power supply 400 to receive electric energy.
And in fact programmable power supply 400 can also power for all electrical and electronic components of described reliability engineering teaching experiment system.
But although do not have shown in Figure 1, preferably, reliability engineering teaching experiment system also can comprise other relevant devices 900 of such as compressor, evaporator, well heater, condenser, related electric equipment and so on according to the preferred embodiment of the invention.
As shown in Figure 2, described upper control microcomputer 200, described high/low temperature cyclic test case 100, described programmable power supply 400, described temperature control instrument 500 and described electric stress loading/measuring system 600 are arranged in housing 10.
Such as, in the illustrated example shown in fig. 2, the display 201 of described upper control microcomputer 200 is arranged in the position in the upper left corner of housing 10; Described upper control microcomputer 200 is arranged in the position in the upper right corner of housing 10; Described temperature control instrument 500 and described electric stress loading/measuring system 600 are arranged in the middle position of housing 10; Other relevant devices 900 of such as compressor, evaporator, well heater, condenser, related electric equipment and so on are arranged in the position in the lower left corner of housing 10.The cabinet structure 800 of the host machine part for holding described upper control microcomputer 200 can be arranged in the lower right corner of housing 10.
Preferably, the drawer 300 for placing keyboard and the mouse be connected with described upper control microcomputer 200 is also furnished with in the housing 10.Preferably, the storage drawer 700 of the article for placing such as brassboard and discrete electronic devices and components and so on is also furnished with in the housing 10.
Preferably, the power switch 401 of the opening and closing for controlling described programmable power supply 400 is furnished with on the housing 10.In addition preferably, the meter switch 501 of the opening and closing for controlling described temperature control instrument 500 is furnished with on the housing 10; And preferably, described meter switch 501 can control the design temperature of described temperature control instrument 500.
Reliability engineering teaching experiment system also can comprise according to the preferred embodiment of the invention: experiment brassboard and discrete electronic devices and components.
Described experiment brassboard includes but not limited to: 16 station positively biased constant current brassboards, the reverse-biased withstand voltage brassboard of 32 station, reliability growth and FEMA analysis design mothod plate; These circuit boards insert the bus type experiment frame in described high/low temperature cyclic test case 100 when testing, to accept corresponding environmental stress and electric stress, test.
Described discrete electronic devices and components include but not limited to: the discrete electronic devices and components of low value low-voltage of the routine of such as diode, LED, electric capacity and so on.
In fact, each brassboard can compatible multiple discrete component.Multiple discrete electronic devices and components can be prepared targetedly.
In specific implementation, in the experiment software system of described upper control microcomputer 200, have recorded a complete set of resources material (test program, piece-by piece teaching plan, guide book of experiment teaching courseware, instructional video etc.).Such as, multiple experimental project is prefixed in the experiment software system of described upper control microcomputer 200, and the experiment type wherein having defined each experimental project (such as, electric stress positively biased/electric stress is reverse-biased), test the key elements such as components and parts, experiment condition (environmental stress/electric stress), failure criterion then can to select within the specific limits, experiment software system, as a kind of control software design, can realize the automatic control of experimentation.
In teaching Process of experiment, student needs according to afore mentioned rules, carry out hardware to build and (discrete electronic devices and components are inserted corresponding circuit board, and bus type experiment frame circuit board inserted in described high/low temperature cyclic test case 100), and start experiment control program, test, obtain experimental data.
Such as, online under just reverse-biased condition the electrical quantity such as each device creepage, knot pressure can independently be measured.
In system of the present invention, laboratory report both in a traditional way, can provide laboratory report electronic stencil, was write voluntarily by student; Also can be generated by system supplymentary and check, facilitate teacher fast to read and make comments.Particularly, integrated due to system, the guide book of experiment of each experimental project is in fact preset among system, and in experimentation, is progressively presented to experimenter as the essential information of experimental project; And system can gather relevant experimental data automatically.So after experiment terminates, the contents such as the experiment purpose in laboratory report, experimental principle, experiment condition, experimentation, experimental result can be generated by system supplymentary, and student's emphasis completes experimental analysis/content such as calculating, experimental summary.
System of the present invention has flexible structure, can meet user's self-developing, way of extensive experimentation project; Experiment content arranges flexibly, can arrange regulation/free experimental project; Allow to select related experiment project for different majors, generate different experimental duties fast, facilitate experiment management.Particularly, reliability engineering teaching experiment system of the present invention is from hardware and software aspect, can support to carry out different experiment types (positively biased/reverse-biased), different experiment components and parts, different experiment condition (environmental stress/electric stress), different failure criterions etc., so can develop, design various different electronic devices and components reliability education experiment project.
Such as, in a particular embodiment, following two kinds of experimental projects can be set in the experiment software system of the described upper control microcomputer 200 of reliability engineering teaching experiment system according to the preferred embodiment of the invention:
1) experimental project of class is specified: student completes experiment, observation experiment process according to the experiment condition of regulation, according to the experimental data obtained, the analysis carrying out being correlated with, the reliability speciality amount of calculation requirement.
2) experimental project of free class: student, according to requirement of experiment, formulates experimental program voluntarily, contrived experiment device, experiment type, experiment condition, failure criterion etc., and carry out experiment, obtain experimental data, calculate correlated results.
Preferably, upper control microcomputer have employed the touch industrial panel computer of integration, and the exploitation of control software design simultaneously have also contemplated that the demand of touch control operation, so this equipment can carry out the experimental implementation of full touch-control.
The present inventor, based on experience with students for many years, carries out innovative design research and development for college teaching demand, provides a complete complete set of solutions.The present invention devises the experiment rack of integration, to be installed concentratedly by all functional parts among this rack and to carry out integrating control; By correlate meter and the equipment of the loading of upper control microcomputer integrating control environmental stress, electric stress loading, electrical characteristics on-line measurement; Support to carry out common graphic analyses to experimental data; The experimental implementation, the data acquisition/stores/processes/analysis, even laboratory report that realize all computer control are write/are printed.
Reliability engineering teaching experiment system is applicable to the experimental teaching of the specialties such as quality engineering, Industrial Engineering, electronic engineering, mechanical engineering according to the preferred embodiment of the invention.Each son experiment of system of the present invention forms modular construction, allows, for different majors, to configure flexibly according to teaching request.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (8)
1. a reliability engineering teaching experiment system, is characterized in that comprising: upper control microcomputer, high/low temperature cyclic test case, bus type experiment frame, programmable power supply, temperature control instrument and electric stress loading/measuring system;
Wherein, bus type experiment frame is arranged in high/low temperature cyclic test case; Described upper control microcomputer is connected to described bus type experiment frame to provide test and excitation signal to described bus type experiment frame and to receive test result signal from described bus type experiment frame; Described upper control microcomputer is connected to temperature control instrument to control the temperature of high/low temperature cyclic test case; Described upper control microcomputer is connected to described electric stress loading/measuring system to provide indicator signal to described electric stress loading/measuring system and to receive results of stress signal from described electric stress loading/measuring system; Described electric stress loading/measuring system provides stress according to described indicator signal to the bus type experiment frame in described high/low temperature cyclic test case, and exports results of stress signal according to the feedback information received from bus type experiment frame to described upper control microcomputer; Further, described upper control microcomputer is connected to programmable power supply to receive electric energy;
And wherein, described upper control microcomputer, described high/low temperature cyclic test case, described programmable power supply, described temperature control instrument and described electric stress loading/measuring system are arranged in housing.
2. reliability engineering teaching experiment system according to claim 1, is characterized in that described reliability engineering teaching experiment system also comprises: experiment brassboard and discrete electronic devices and components; Wherein, the compatible multiple discrete electronic devices and components of each experiment brassboard; And discrete electronic devices and components, as experimental subjects, assign on corresponding brassboard, and brassboard assigns on the bus type experiment frame in high/low temperature cyclic test case.
3. reliability engineering teaching experiment system according to claim 2, is characterized in that, is also furnished with the storage drawer for placing brassboard and discrete electronic devices and components in the housing.
4. according to the reliability engineering teaching experiment system one of claims 1 to 3 Suo Shu, it is characterized in that, being also furnished with the drawer for placing keyboard and the mouse be connected with described upper control microcomputer in the housing.
5. according to the reliability engineering teaching experiment system one of claims 1 to 3 Suo Shu, it is characterized in that, housing is furnished with the power switch of the opening and closing for controlling described programmable power supply.
6. according to the reliability engineering teaching experiment system one of claims 1 to 3 Suo Shu, it is characterized in that, housing is furnished with the meter switch of the opening and closing for controlling described temperature control instrument.
7. reliability engineering teaching experiment system according to claim 6, is characterized in that, described meter switch controls the design temperature of described temperature control instrument.
8. according to the reliability engineering teaching experiment system one of claims 1 to 3 Suo Shu, it is characterized in that, described reliability engineering teaching experiment system also comprises compressor, evaporator, well heater, condenser.
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| CN201410567586.XA CN104299502A (en) | 2014-10-22 | 2014-10-22 | Reliability technology teaching experiment system |
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Cited By (4)
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| CN104898035A (en) * | 2015-06-15 | 2015-09-09 | 山东晶导微电子有限公司 | High-temperature reverse bias testing system for real-time data collection |
| CN107096586A (en) * | 2017-06-27 | 2017-08-29 | 合肥震岳工业设备科技有限公司 | One kind is easy to teaching type lab platform |
| CN112182900A (en) * | 2020-10-10 | 2021-01-05 | 浙江中路智能装备有限公司 | Reliability virtual experiment teaching system and method |
| CN113887158A (en) * | 2021-12-06 | 2022-01-04 | 山东科技大学 | Virtual simulation teaching method, system and computer equipment |
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