CN201673224U - Intelligent surface-mounted optical coupling tester - Google Patents
Intelligent surface-mounted optical coupling tester Download PDFInfo
- Publication number
- CN201673224U CN201673224U CN2010202125899U CN201020212589U CN201673224U CN 201673224 U CN201673224 U CN 201673224U CN 2010202125899 U CN2010202125899 U CN 2010202125899U CN 201020212589 U CN201020212589 U CN 201020212589U CN 201673224 U CN201673224 U CN 201673224U
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- optocoupler
- circuit
- surface mount
- test
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Abstract
The utility model discloses an intelligent surface-mounted optical coupling tester, which comprises an industrial personal computer, a program controlled power supply module, an A/D conversion module, a time interval measuring module, a sample switch module, a connector and a printer. The industrial personal computer is connected with the sample switch module, the program controlled power supply module and the A/D conversion module by a PCI (Peripheral Component Interconnect) bus, connected with the printer by a USB interface and connected with the time interval measuring module by a RS232 interface, and the sample switch module is connected with the connector. The utility model adopts a master-slave control mode, the industrial personal computer is connected with the functional modules by the PCI universal interface bus and the RS232 serial port communication mode, a user can automatically complete the signal conditioning, the measurement and the data acquisition only by binding the basic information, the test condition and the technical parameters as requirements, thereby realizing the automation of the optical coupling technical parameters test; the utility model has multiple functions of online acquisition, optical coupling parameters testing, real-time data display, storage and printing, while the industrial personal computer carries out the management, statistics and printing of the test data by a data base, thereby facilitating the data management.
Description
Technical field
The utility model relates to a kind of intelligent Surface Mount optocoupler tester, the photoelectric coupled device that can be used for the Surface Mount packing forms (is called for short: the test Surface Mount optocoupler), also being applicable to the test of other packing forms photoelectric coupled device, is a kind of special test equipment, belongs to instrument field.
Background technology
At present, domestic no special test equipment is tested the Surface Mount optocoupler, and the mode of employing is to select for use all purpose instrument equipment to make up the test job of finishing the optocoupler parameter as required, with judgement, arrangement, the statistics of manually carrying out test data.This method of testing complex operation, security and reliability are low, and the test data consistance is poor.
The utility model provides a kind of intelligent instrument, has realized the whole-course automation of Surface Mount optocoupler test job.
The utility model content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, a kind of intelligent optocoupler tester of automatic test is provided, realized the automatic test of Surface Mount optocoupler, the utility model is applicable to the user who produces or use the Surface Mount optocoupler.
Technical solution of the present utility model is: intelligent Surface Mount optocoupler tester, comprise industrial computer, programmable power supply module, A/D modular converter, time interval measurement module, sampling switch module, connector and printer, industrial computer is connected with sampling switch module, programmable power supply module and A/D modular converter by pci bus, be connected with printer by USB interface, be connected with the time interval measurement module by the RS232 interface, the sampling switch module is connected with connector.
Described time interval test module comprises single-chip microcomputer, time-to-digit converter, shaping circuit, comparator circuit, analog switch and MAX232 driving circuit, the propagation delay time signal of tested Surface Mount optocoupler is through connector and sampling switch module entry time interval measurement module, pass through analog switch, comparator circuit, shaping circuit carries out gating, form the pulse signal of Transistor-Transistor Logic level after comparison and the shaping, send into time-to-digit converter, time-to-digit converter converts pulse signal to digital signal and sends into single-chip microcomputer, single-chip microcomputer is sent digital signal into industrial computer by the MAX232 driving circuit, and the control signal of industrial computer is sent into single-chip microcomputer by the MAX232 driving circuit.
Described sampling switch module isolates digital quantity output card D/O by 64 the tunnel and No. 24 relay output boards are formed.
Described programmable power supply comprises the D/A change-over circuit, four roadlock transformation circuits, No. three buffer circuits and No. four driving circuits, the first via electric current that the D/A change-over circuit is directly exported forms programmable current source, the first via voltage analog signal of D/A change-over circuit output forms the program-controlled voltage source I through first via impedance inverter circuit and first via driving circuit, second of D/A change-over circuit output, three, four road voltage analog signals are respectively through second, three, four roadlock transformation circuits, first, two, No. three buffer circuits and second, three, No. four driving circuits form the program-controlled voltage source II.
Described connector adopts band self-locking 40 die integrated circuit sockets.
Described A/D modular converter adopts the isolation high speed analog signal input card of pci bus.
The utility model compared with prior art beneficial effect is:
(1) the utility model adopts principal and subordinate's control mode, industrial computer links by PCI general purpose interface bus, RS232 serial communication mode and functional module, the user only need bind essential information, test condition, technical parameter on request, can finish Signal Regulation, measurement, data acquisition automatically, realize the robotization of optocoupler technical parameter test;
(2) the multinomial function that the utlity model has online acquisition, test optocoupler parameter, real time data demonstration, storage and print, industrial computer adopts database that test figure is managed, adds up, prints simultaneously, is convenient to the management of data;
(3) the utility model image data is quick, accurate, precision is high, function is complete, reliability is high, has the manual testing and writes down incomparable superiority;
(4) the utility model both can be used for the device detection of electronic product manufacturer photoelectricity coupling, also can be used to produce the device detection of photoelectric coupled device producer;
(5) present domestic this type of testing apparatus of the utility model that still do not have, marketing and application prospect are very wide, and economic benefit is considerable.
Description of drawings
Fig. 1 is the utility model structured flowchart;
Fig. 2 is the utility model programmable power supply modular structure block diagram;
Fig. 3 is the utility model time interval measurement modular structure block diagram.
Embodiment
As shown in Figure 1, the utility model comprises industrial computer, programmable power supply module, A/D modular converter, time interval measurement module, sampling switch module, connector and printer, industrial computer is connected with sampling switch module, programmable power supply module and A/D modular converter by pci bus, be connected with printer by USB interface, be connected with the time interval measurement module by the RS232 interface, the sampling switch module is connected with connector, and connector is connected with tested Surface Mount optocoupler by adapter.
The programmable power supply module provides excitation power supply for tested optocoupler, and this power supply is program-controlled, by automatic adjusting is set.The programmable power supply composition frame chart comprises D/A change-over circuit, impedance inverter circuit, buffer circuit, driving circuit as shown in Figure 2.The D/A translation circuit, select for use the PCI-17204 road of grinding magnificent company to isolate analog output unit, core circuit as programmable power supply, this module is program-controlled, have 4 road independent adjustable simulating signals, one tunnel simulating signal has constituted the program-controlled voltage source I behind impedance inverter circuit, driving circuit, remain three tunnel simulating signals behind impedance inverter circuit, buffer circuit, driving circuit, constituted the program-controlled voltage source II.Utilize and isolate the output of analog output unit first via electric current, as programmable current source.
The A/D modular converter, be the isolation high speed analog signal input card of a pci bus, it provides 32 analog input channels, and sample frequency can reach 100KS/S, 12 resolution.The utility model converts tested analog quantity to magnitude of voltage and sends into the A/D modular converter again, gathers, nurses one's health, quantizes to convert to digital quantity, so that stored, handle, show or printed by computing machine.Can select the PCI-1713 integrated circuit board that grinds magnificent company for use.
The sampling switch module, form by 64 tunnel isolation digital quantity output cards (D/O) and No. 24 relay output boards, the utility model utilization industrial computer control D/O digital quantity output card, D/O digital quantity output card is controlled No. 24 relay output boards, realize the automatic switchover of power supply, signal, realized the robotization of Surface Mount optocoupler tester.Can select for use the PCI-1752 integrated circuit board and the PCLD-785B integrated circuit board that grind magnificent company to form.64 the tunnel isolate digital quantity output card module (D/O), and as the control circuit of data acquisition, this digital quantity output card module and relay matrix circuit constitute sampling switch circuit, and promptly automatic switch-over circuit has substituted traditional switch.Automatic switch-over circuit and A/D modular converter have constituted data acquisition system (DAS).The main work that data acquisition system (DAS) is finished is the action by the computer control relay, finishes passage and switches, and the distribution of system, the collection of data are sent into computing machine to the simulating signal of gathering through A/D circuit conversion digital quantity.
Connector has been selected the band self-locking 40 die integrated circuit sockets of being convenient to load and unload for use.It is tested optocoupler with tester between be connected bridge.Because the variation of Surface Mount optocoupler packing forms needs standard to become unified standard interface form.Therefore designed the adapter of variety classes optocoupler socket.Optocoupler to be measured need be installed on the corresponding adapter, inserts connector again, and working procedure just can be finished the test job of optocoupler.
The time interval measurement module is the special measurement module that designs for the propagation delay time of measuring optocoupler.The module composition frame chart comprises single-chip microcomputer, time-to-digit converter, shaping circuit, comparator circuit, analog switch and MAX232 driving circuit as shown in Figure 3.The propagation delay time signal of tested Surface Mount optocoupler is through connector and sampling switch module entry time interval measurement module, carry out forming after gating, comparison and the shaping pulse signal of Transistor-Transistor Logic level by analog switch, comparator circuit, shaping circuit, send into time-to-digit converter, time-to-digit converter converts pulse signal to digital signal and sends into single-chip microcomputer, single-chip microcomputer is sent digital signal into industrial computer by the MAX232 driving circuit, and the control signal of industrial computer is sent into single-chip microcomputer by the MAX232 driving circuit.
The time interval measurement module adopts principal and subordinate's control mode, by RS232 bus control single chip computer, is used to finish the functions such as control, operation and calculating to the time test module by industrial computer.Selected the core circuit of the high precision time interval measurement chip TDC-GP1 of German ACAM company research and development for use as time measurement, the propagation delay time signal of optocoupler is sent into the input end of time interval measurement module through connector and sampling switch module, form the pulse signal of Transistor-Transistor Logic level through analog switch, comparator circuit and shaping circuit, inputing to the TDC-GP1 chip changes, carry out operation of data by industrial computer, draw the digital value of this parameter.
Printer is selected the Ip4200 of CANON company for use, or other has the printer of USB interface.
Industrial computer can be selected the AWS-8420 industrial workstation that grinds magnificent company for use.It is a control platform of the present utility model, by communication between standard pci bus, RS232 and each functional module, and program control each functional module.The user binds chip information, test condition, technical parameter by human-computer interaction interface, can finish Signal Regulation, measurement, test figure automatically and gather automatically, stores and handle, and fills in test figure automatically and prints.
Industrial computer is that the optocoupler test job realizes the important assurance of robotization, and industrial computer has comprised user management module, chip information managing module, test module and data management module.The function of each module realizes that independently the switching of intermodule concentrates on main interface, and complication system has been accomplished without any confusion.The industrial computer design has taken into full account interpersonal interaction problems, and test interface is pure and fresh succinct, and related data is concentrated and shown, makes that operation is easier, and the result reads, data are consulted more convenient.Main characteristics is to adopt the modular construction design, the interface is succinctly friendly, and system finishes test initialization during operation automatically, carries out self check in the system initialization process, system provides eye-catching alarm and relevant information in the test process, and system possesses perfect data management function.
User management module is the door that the user carries out authentication, adopts and encrypts storage and recognition technology, guarantees the safe in utilization of system.The management of user rights such as it has been concentrated and landed, has registered, cancellation.
The chip information managing module is the typing that is used for the various parameters of chip, and system arrives database with the data storage of typing, directly calls during in order to test.Laddering information guide makes chip information typing work be easily understood.
Test module, the test and characteristic the describing of mainly finishing technical parameter.Test event can be given tacit consent to also and can freely select, and system tests automatically according to options.Describe a large amount of unique points of family curve utilization and carry out curve fitting, image truly reflects the data trend.
Data management module is mainly used in the management historical data.Whenever after testing a chip, test data just is saved to historical data base, checks and prints in order to the later stage.Perfect function of search greatly facilitates checking and managing of historical data.
The attainable function of the utility model: can be to the electrical source consumption electric current of optocoupler, input forward conduction voltage VF, input inverse current IR, output leakage current ICEO, output saturation voltage drop VCES, current transfer ratio CTR, conducting, test automatically by static parameters such as propagation delay time tON, tOff, and the family curve of optocoupler is described.As: input current IF and output voltage V 0 family curve; Input current IF and input voltage VF family curve.
Principle of work:
Tested optocoupler is put into corresponding adapter jack, inserts connector.Turn on the power switch the operation control program.Enter customer management window, the input personal information is landed, and enters the parameter of chip information window typing chip and selects test item, presses to start the test control, enters test mode.Show test results in real time at test window, after chip testing was finished, test data just was saved to historical data base, checked and printed in order to the later stage.
The unspecified part of the utility model belongs to general knowledge as well known to those skilled in the art.
Claims (6)
1. intelligent Surface Mount optocoupler tester, it is characterized in that: comprise industrial computer, programmable power supply module, A/D modular converter, time interval measurement module, sampling switch module, connector and printer, industrial computer is connected with sampling switch module, programmable power supply module and A/D modular converter by pci bus, be connected with printer by USB interface, be connected with the time interval measurement module by the RS232 interface, the sampling switch module is connected with connector.
2. intelligent Surface Mount optocoupler tester according to claim 1, it is characterized in that: described time interval test module comprises single-chip microcomputer, time-to-digit converter, shaping circuit, comparator circuit, analog switch and MAX232 driving circuit, the propagation delay time signal of tested Surface Mount optocoupler is through connector and sampling switch module entry time interval measurement module, pass through analog switch, comparator circuit, shaping circuit carries out gating, form the pulse signal of Transistor-Transistor Logic level after comparison and the shaping, send into time-to-digit converter, time-to-digit converter converts pulse signal to digital signal and sends into single-chip microcomputer, single-chip microcomputer is sent digital signal into industrial computer by the MAX232 driving circuit, and the control signal of industrial computer is sent into single-chip microcomputer by the MAX232 driving circuit.
3. intelligent Surface Mount optocoupler tester according to claim 1 is characterized in that: described sampling switch module isolates digital quantity output card D/O by 64 the tunnel and No. 24 relay output boards are formed.
4. intelligent Surface Mount optocoupler tester according to claim 1, it is characterized in that: described programmable power supply comprises the D/A change-over circuit, four roadlock transformation circuits, No. three buffer circuits and No. four driving circuits, the first via electric current that the D/A change-over circuit is directly exported forms programmable current source, the first via voltage analog signal of D/A change-over circuit output forms the program-controlled voltage source I through first via impedance inverter circuit and first via driving circuit, second of D/A change-over circuit output, three, four road voltage analog signals are respectively through second, three, four roadlock transformation circuits, first, two, No. three buffer circuits and second, three, No. four driving circuits form the program-controlled voltage source II.
5. intelligent Surface Mount optocoupler tester according to claim 1 is characterized in that: described connector adopts band self-locking 40 die integrated circuit sockets.
6. intelligent Surface Mount optocoupler tester according to claim 1 is characterized in that: described A/D modular converter adopts the isolation high speed analog signal input card of pci bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202125899U CN201673224U (en) | 2010-05-24 | 2010-05-24 | Intelligent surface-mounted optical coupling tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202125899U CN201673224U (en) | 2010-05-24 | 2010-05-24 | Intelligent surface-mounted optical coupling tester |
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| Publication Number | Publication Date |
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| CN201673224U true CN201673224U (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202125899U Expired - Fee Related CN201673224U (en) | 2010-05-24 | 2010-05-24 | Intelligent surface-mounted optical coupling tester |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759674A (en) * | 2012-07-20 | 2012-10-31 | 航天科工防御技术研究试验中心 | Universal adapter for testing optocouplers |
| CN103197260A (en) * | 2013-03-21 | 2013-07-10 | 工业和信息化部电子第五研究所 | Degradation monitoring method and device of photoelectric coupler in switching power supply |
| CN106124897A (en) * | 2016-07-11 | 2016-11-16 | 中国电子科技集团公司第四十四研究所 | Photoelectrical coupler can be carried out electricity aging test and the test system of parameter testing |
| CN112611474A (en) * | 2020-12-07 | 2021-04-06 | 句容市博远电子有限公司 | Multifunctional NTC temperature sensor parameter testing system |
-
2010
- 2010-05-24 CN CN2010202125899U patent/CN201673224U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759674A (en) * | 2012-07-20 | 2012-10-31 | 航天科工防御技术研究试验中心 | Universal adapter for testing optocouplers |
| CN103197260A (en) * | 2013-03-21 | 2013-07-10 | 工业和信息化部电子第五研究所 | Degradation monitoring method and device of photoelectric coupler in switching power supply |
| CN103197260B (en) * | 2013-03-21 | 2016-06-08 | 工业和信息化部电子第五研究所 | Photoelectrical coupler degeneration monitoring method and device in Switching Power Supply |
| CN106124897A (en) * | 2016-07-11 | 2016-11-16 | 中国电子科技集团公司第四十四研究所 | Photoelectrical coupler can be carried out electricity aging test and the test system of parameter testing |
| CN112611474A (en) * | 2020-12-07 | 2021-04-06 | 句容市博远电子有限公司 | Multifunctional NTC temperature sensor parameter testing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20170524 |