CN103542876A - Automatic testing device for resolver-to-digital converter - Google Patents
Automatic testing device for resolver-to-digital converter Download PDFInfo
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- CN103542876A CN103542876A CN201310511110.XA CN201310511110A CN103542876A CN 103542876 A CN103542876 A CN 103542876A CN 201310511110 A CN201310511110 A CN 201310511110A CN 103542876 A CN103542876 A CN 103542876A
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Abstract
The invention provides an automatic testing device for a resolver-to-digital converter. The automatic testing device comprises a test board and an environmental test chamber. A master control computer, test instruments, a test circuit board, a programmable power supply and a displayer are installed on the test board, wherein the test instruments include a universal meter clamp, an oscilloscope clamp and an angle and position indicator. A test fixture is installed in the environmental test chamber. The test circuit board on the test board and the test fixture inside the environmental test chamber are connected through a test cable. The automatic testing device for the resolver-to-digital converter has the remarkable advantages that the automatic testing device is controlled through the computer, so that a test process is completed automatically; the test speed is high, and test items are all covered; test accuracy is high, and test data are recorded by the computer automatically; the automatic testing device is of a combined structure, the test board is easy to move and maintain, the size is small, and interfaces are standard.
Description
Technical field
The present invention relates to a kind of resolver-to-angle converter ATE (automatic test equipment), particularly a kind of resolver-to-angle converter automatic testing equipment.
Background technology
Existing resolver-to-angle converter testing apparatus is a kind of testing apparatus of using manual motor setting device, angle position indicator and resolver-to-angle converter test board to form, this equipment adopts selsyn or the rotary transformer angle setting device with mechanical deceleration device, produce shaft angle simulating signal, this signal accesses respectively resolver-to-angle converter and angle position indicator by resolver-to-angle converter test board.Tester is by manual rotation motor angle setting device, control the angle that produces shaft angle simulating signal, the digital angle amount of resolver-to-angle converter output shows by the LED lamp on test board, comparing in the digital angle showing and the digital angle of angle position indicator for displaying, completes the test of resolver-to-angle converter angular accuracy.When above-mentioned testing apparatus is when reality is used, operator's hand can rock when rotary electric machine setting device, thereby maintenance motor that cannot be stable is parked in test angle, and this is by the test generation adverse effect to angular accuracy.Meanwhile, the digital angle amount of resolver-to-angle converter output manually reads by the LED lamp on test board, the process of the reading length that expends time in, and having people is possible of error in reading.
Summary of the invention
Technical matters to be solved by this invention is for the deficiencies in the prior art, provide a kind of reasonable in design, automaticity is high, can effectively meet the proving installation of the automatic test request of resolver-to-angle converter.
Technical matters to be solved by this invention is to realize by following technical solution.The present invention is a kind of resolver-to-angle converter automatic testing equipment, is characterized in: this device comprises test board and environmental test chamber;
Described test board is installed main control computer, testing tool, testing circuit board, programmable power supply and display, and testing tool comprises multimeter card, oscillograph card and angle position indicator;
Described environmental test chamber installation testing fixture; Testing circuit board on test board is connected by test cable with the test fixture in environmental test chamber;
Described multimeter card and oscillograph card are arranged in main control computer, multimeter card completes the test of resolver-to-angle converter voltage and the magnitude of current, oscillograph card test resolver-to-angle converter input signal and signal output waveform, draw resolver-to-angle converter respective electrical performance index by waveform recording analysis;
Described angle position indicator and programmable power supply are connected to main control computer by serial line interface cable respectively; Main control computer is sent and is accepted steering order by serial line interface, the operation that completes Angle Position Indicator and programmable power supply is controlled;
Described testing circuit board, as the control axis of all test signals, connects respectively main control computer, angle position indicator, programmable power supply and test fixture; Between testing circuit board and main control computer, by parallel data cable, be connected, receive control signal that main control computer sends for the switching controls of multiplexer switch;
Test circuit on the selsyn of angle position indicator output or signals of rotating transformer and reference signal access testing circuit board, after switching over, by test cable access test fixture; After the voltage access testing circuit board of programmable power supply output, after gauge tap, by test cable access test fixture;
Described test fixture is fixed in environmental test chamber, and resolver-to-angle converter is arranged on after test fixture, by the fixing resolver-to-angle converter of manual locking bar; Resolver-to-angle converter is installed after locking, and probe contact resolver-to-angle converter pin, accesses respectively connector by pin; Connector is by test cable connecting test circuit board.
In resolver-to-angle converter automatic testing equipment of the present invention: described main control computer be can installation testing instrument board computing machine, main control computer installation testing software, completes the automatic test of resolver-to-angle converter by the control of testing software.Digital multimeter card in the present invention, for the test of resolver-to-angle converter voltage and current test event, is installed in computer slot, accepts main control computer control by computer bus.Digital oscilloscope card, for the test of resolver-to-angle converter signal waveform and time quantum test project, is installed in computer slot, accepts main control computer control by computer bus.Angle position indicator is controlled by serial line interface by main control computer, can simulate output selsyn or signals of rotating transformer, and the reference signal of the required various voltage to frequencies of resolver-to-angle converter is provided.Complete the test of resolver-to-angle converter angle measurement project.
Testing circuit board in the present invention comprise resolver-to-angle converter test circuit and multiplexer switch.Test circuit is according to the method for testing design of stipulating in resolver-to-angle converter closed specification.Multiplexer switch, for the switching controls of multi-channel test signal, by the gating of computer testing software control switch, completes all tested resolver-to-angle converters is carried out to poll test.
Test fixture in the present invention, according to the physical dimension of resolver-to-angle converter and pin design, can be installed polylith shaft angle modular converter simultaneously.Test fixture, for fixing tested resolver-to-angle converter, accesses testing circuit board by the pin of resolver-to-angle converter by test cable simultaneously.
Programmable power supply in the present invention is accepted the control of main control computer, for normal operation power supply being provided to tested resolver-to-angle converter, also can provide the working power of the desired different voltages of different test events simultaneously.
Environmental test chamber in the present invention is for testing the serviceability of resolver-to-angle converter under high temperature and cryogenic conditions.Environmental test chamber is accepted the control of main control computer by serial line interface, can set the test conditions such as different temperature, time, cycle index.
Compared with prior art, remarkable advantage of the present invention is:
(1) the present invention adopts computer control, and after test event and parameter are selected, test process, without manual intervention, completes test process automatically;
(2) its test speed is fast, test event all standing, and single job can complete all test events of resolver-to-angle converter closed specification regulation;
(3) its test accuracy is high, and the automatic record of test data computing machine can generate test report automatically.
(4) apparatus of the present invention are fabricated structure, mobile, maintenance that test board is easy to, and volume is little, and interface standard can be widely used in the performance test of various model resolver-to-angle converters.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of resolver-to-angle converter automatic testing equipment of the present invention;
Fig. 2 is resolver-to-angle converter automatic testing equipment testing process schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
In conjunction with Fig. 1, resolver-to-angle converter automatic testing equipment of the present invention is comprised of two parts, comprises test board and environmental test chamber.Main control computer, testing tool, testing circuit board, programmable power supply and display are installed on test board.Environmental test chamber installation testing fixture.On test board, testing circuit board is connected by test cable with the test fixture in environmental test chamber.Test cable transmission direct supply, selsyn or rotary transformer simulating signal, reference signal, resolver-to-angle converter control signal and output digit signals.Wherein, between direct supply, simulating signal and digital signal, isolate, avoid phase mutual interference.
On test board, main control computer is for the automatic control of resolver-to-angle converter test process.Multimeter card and oscillograph card are installed in main control computer.Multimeter card comprises voltage gear and current gear, can complete respectively the test of resolver-to-angle converter voltage and the magnitude of current.Oscillograph card can be tested resolver-to-angle converter input signal and signal output waveform, by waveform recording analysis, can draw resolver-to-angle converter respective electrical performance index.
On test board table top, display is installed, as man-machine interface.Angle position indicator, testing circuit board and programmable power supply are installed on respectively on the framework of the layering under test board table top.Angle position indicator and programmable power supply are connected to main control computer by serial line interface cable respectively.Main control computer is sent and is accepted steering order by serial line interface, the operation that completes Angle Position Indicator and programmable power supply is controlled.
Testing circuit board, as the control axis of all test signals, connects respectively main control computer, angle position indicator, programmable power supply and test fixture.Between testing circuit board and main control computer, by parallel data cable, be connected, receive control signal that main control computer sends for the switching controls of multiplexer switch.Test circuit on the selsyn of angle position indicator output or signals of rotating transformer and reference signal access testing circuit board, after switching over, by test cable access test fixture.After the voltage access testing circuit board of programmable power supply output, after gauge tap, by test cable access test fixture.
Test fixture is fixed in environmental test chamber, and resolver-to-angle converter is arranged on after test fixture, by the fixing resolver-to-angle converter of manual locking bar.Resolver-to-angle converter is installed after locking, and probe contact resolver-to-angle converter pin, accesses respectively connector by pin.Connector is by test cable connecting test circuit board.
In conjunction with Fig. 2, resolver-to-angle converter automatic testing equipment test process of the present invention is flow process as shown.Test process is: tested resolver-to-angle converter is manually installed, after proving installation start energising, is automatically performed hardware initialization operation.Complete after process of self-test, proving installation waits for that operating personnel set test event and test parameter information, and after test request to be confirmed, proving installation automatically performs test process, until test event is complete.
Claims (1)
1. a resolver-to-angle converter automatic testing equipment, is characterized in that: this device comprises test board and environmental test chamber;
Described test board is installed main control computer, testing tool, testing circuit board, programmable power supply and display, and testing tool comprises multimeter card, oscillograph card and angle position indicator;
Described environmental test chamber installation testing fixture; Testing circuit board on test board is connected by test cable with the test fixture in environmental test chamber;
Described multimeter card and oscillograph card are arranged in main control computer, multimeter card completes the test of resolver-to-angle converter voltage and the magnitude of current, oscillograph card test resolver-to-angle converter input signal and signal output waveform, draw resolver-to-angle converter respective electrical performance index by waveform recording analysis;
Described angle position indicator and programmable power supply are connected to main control computer by serial line interface cable respectively; Main control computer is sent and is accepted steering order by serial line interface, the operation that completes Angle Position Indicator and programmable power supply is controlled;
Described testing circuit board, as the control axis of all test signals, connects respectively main control computer, angle position indicator, programmable power supply and test fixture; Between testing circuit board and main control computer, by parallel data cable, be connected, receive control signal that main control computer sends for the switching controls of multiplexer switch;
Test circuit on the selsyn of angle position indicator output or signals of rotating transformer and reference signal access testing circuit board, after switching over, by test cable access test fixture; After the voltage access testing circuit board of programmable power supply output, after gauge tap, by test cable access test fixture;
Described test fixture is fixed in environmental test chamber, and resolver-to-angle converter is arranged on after test fixture, by the fixing resolver-to-angle converter of manual locking bar; Resolver-to-angle converter is installed after locking, and probe contact resolver-to-angle converter pin, accesses respectively connector by pin; Connector is by test cable connecting test circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511110.XA CN103542876A (en) | 2013-10-26 | 2013-10-26 | Automatic testing device for resolver-to-digital converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511110.XA CN103542876A (en) | 2013-10-26 | 2013-10-26 | Automatic testing device for resolver-to-digital converter |
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| CN103542876A true CN103542876A (en) | 2014-01-29 |
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| CN201310511110.XA Pending CN103542876A (en) | 2013-10-26 | 2013-10-26 | Automatic testing device for resolver-to-digital converter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254665A (en) * | 2017-12-13 | 2018-07-06 | 常州第四无线电厂有限公司 | A kind of the axes-angle conversion chip-detecting apparatus and method of QFP64 encapsulation |
| CN110133392A (en) * | 2018-02-09 | 2019-08-16 | 上海蔚兰动力科技有限公司 | Test method and its associated test system |
| CN110609186A (en) * | 2019-09-16 | 2019-12-24 | 连云港杰瑞电子有限公司 | Automatic testing system and method for shaft angle-digital module parameters |
| CN113970679A (en) * | 2021-10-21 | 2022-01-25 | 连云港杰瑞电子有限公司 | Automatic debugging table and debugging method for angular precision of shaft angle-digital converter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101281042A (en) * | 2008-04-14 | 2008-10-08 | 连云港杰瑞电子有限公司 | High precision CMOS integrated circuit autosyn / rotary transformer - digital conversion technique |
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2013
- 2013-10-26 CN CN201310511110.XA patent/CN103542876A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101281042A (en) * | 2008-04-14 | 2008-10-08 | 连云港杰瑞电子有限公司 | High precision CMOS integrated circuit autosyn / rotary transformer - digital conversion technique |
Non-Patent Citations (2)
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| 寇志强，等: "一种基于模块化仪器的轴角转换器自动测试系统", 《电子质量》, 31 December 2012 (2012-12-31) * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254665A (en) * | 2017-12-13 | 2018-07-06 | 常州第四无线电厂有限公司 | A kind of the axes-angle conversion chip-detecting apparatus and method of QFP64 encapsulation |
| CN110133392A (en) * | 2018-02-09 | 2019-08-16 | 上海蔚兰动力科技有限公司 | Test method and its associated test system |
| CN110609186A (en) * | 2019-09-16 | 2019-12-24 | 连云港杰瑞电子有限公司 | Automatic testing system and method for shaft angle-digital module parameters |
| CN113970679A (en) * | 2021-10-21 | 2022-01-25 | 连云港杰瑞电子有限公司 | Automatic debugging table and debugging method for angular precision of shaft angle-digital converter |
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Application publication date: 20140129 |