CN103630352A - Device for detecting VS52 electric regulating valve - Google Patents
Device for detecting VS52 electric regulating valve Download PDFInfo
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- CN103630352A CN103630352A CN201310677957.5A CN201310677957A CN103630352A CN 103630352 A CN103630352 A CN 103630352A CN 201310677957 A CN201310677957 A CN 201310677957A CN 103630352 A CN103630352 A CN 103630352A
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- pressure sensor
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Abstract
The invention relates to a device for detecting a VS52 electric regulating valve. According to the technical scheme, an interface of an upper computer (2) is connected with a power switch of a vacuum cylinder (1) through a data acquisition card (4); the data acquisition card (4) is connected with an alarm (5); an air outlet of the vacuum cylinder (1) is respectively communicated with the VS52 electric regulating valve (8) and a first gas pressure sensor (7) through a pipeline; the first gas pressure sensor (7) is connected with the data acquisition card (4); another interface of the upper computer (2) is connected with a signal source (3); the signal source (3) is connected with the input end of a pulse level modulator (9); the output end of the pulse level modulator (9) is connected with the power end of the VS52 electric regulating valve (8); an air outlet of the VS52 electric regulating valve (8) is connected with an air inlet end of a second gas pressure sensor (6); the second gas pressure sensor (6) is connected with the data acquisition card (4); the upper computer (2) is provided with detection software of the VS52 electric regulating valve. The device is high in degree of automation, high in measurement speed, high in detection precision, high in interference resistance and friendly to a human-computer interface.
Description
Technical field
The invention belongs to a kind of pick-up unit technical field.Relate in particular to a kind of pick-up unit of adjusting valve for VS52 electricity.
Background technology
Along with environmental problem comes into one's own increasingly, reduce the important directions that Engine's Harmful Emission becomes development of engine.EGR (EGR) system is a kind of by the waste gas after burning is reintroduced back in engine chamber, and to slow down the combustion process of burning indoor fuel gas, suitably control combustion temperature, reduces NO thereby reach
xthe emission control systems of emission level.In egr system, the control of EGR valve need adjust valve to realize by VS52 electricity, thereby adjusts stability and the reliability requirement of valve higher to VS52 electricity.Therefore before VS52 electricity adjusts valve to use, need to carry out Performance Detection to it, judge that whether the electric valve quality of adjusting of VS52 is qualified.
At present, it is manual detection device that the VS52 electricity of domestic use is adjusted valve detection system, this manual detection device detection efficiency is low, testing result accuracy is low, and higher to testing staff's technical requirement, need testing staff successively to change dutycycle and the real time record analyzing and testing result of square-wave signal, and testing staff's labour intensity is very large, therefore easily produce larger error.
Summary of the invention
The present invention is intended to overcome above-mentioned technological deficiency, object be to provide that a kind of automaticity is high, measuring speed is fast, accuracy of detection is high, antijamming capability is strong, man-machine interface is friendly and simple operation for VS52 electricity, adjust the pick-up unit device of valve.
For achieving the above object, the technical solution used in the present invention is: this device comprises vacuum cylinder, host computer, signal source, data collecting card, alarm, the second gas pressure sensor, the first gas pressure sensor, VS52 electricity tune valve and impulse level modulator.
The interface COM2 of host computer is connected with the USB communication port 4a of data collecting card, and the port P0.0 of data collecting card is connected with the power switch 1a of vacuum cylinder, and the port P1.0 of data collecting card is connected with alarm.The gas outlet 1b of vacuum cylinder adjusts the air intake opening 8a of valve and the inlet end 7a of the first gas pressure sensor to communicate respectively by pipeline with VS52 electricity, and the signal output part 7b of the first gas pressure sensor is connected with the analog input end I0 of data collecting card.The interface COM1 of host computer is connected with the USB (universal serial bus) input end 3a of signal source, the signal output part 3b of signal source is connected with the signal input part 9a of impulse level modulator, the signal output part 9b of impulse level modulator adjusts the power end 8b of valve to be connected with VS52 electricity, VS52 electricity adjusts the gas outlet 8c of valve and the inlet end 6a of the second gas pressure sensor to be connected, and the signal output part 6b of the second gas pressure sensor is connected with the analog input end I1 of data collecting card.
Host computer is equipped with the detection software that VS52 electricity is adjusted valve.
Described impulse level modulator is comprised of input filter module, constant current source, amplification module and output filtering module.The output terminal of input filter module is connected with the input end of constant current source, and the output terminal of constant current source is connected with the input end of amplification module, and the output terminal of amplification module is connected with the input end of output filtering module.The output terminal of output filtering module adjusts the power end 8b of valve to be connected with VS52 electricity, and the input end of input filter module is connected with the output terminal 3b of signal source.
Described data collecting card comprises eight road analog input ends and 12 railway digital output terminals, and A/D conversion accuracy is more than 12.
Described VS52 electricity adjusts the main flow of the detection software of valve to be:
Step 1, setting party's wave impulse array, set duration of each square wave;
Step 2, start to detect, each square wave keeps after setting-up time the next square wave of output automatically;
Step 4, judge that force value corresponding to square-wave pulse array is whether all in normal range, if force value is all at normal model
In enclosing, enter step 5, otherwise, step 6 entered;
Step 5, judge that qualified and automatic preservation detects data;
Whether step 6, the also artificial decision of reporting to the police preserve detection data.
Owing to adopting technique scheme, the present invention compared with prior art has following economic effect:
Host computer of the present invention communicates by USB and data collecting card and signal source, data collecting card sends to host computer by the real-time detector data of the first gas pressure sensor and the second gas pressure sensor, host computer is analyzed real-time detector data, draw out VS52 electricity and adjust the vacuum tightness relation curve corresponding to each square-wave pulse dutycycle of valve, by VS52, detect the performance of software automatic detection analysis VS52.
The VS52 that the present invention adopts detects software and can adjust the vacuum tightness performance of valve to make Fast Measurement to VS52 electricity, there is good automatic detection analysis performance and antijamming capability strong, data collecting card has very high measuring accuracy, and can in complicated industrial environment, accurately work, guarantee stability and the reliability of this pick-up unit.This pick-up unit possesses to complete in real time adjusts collection, data analysis processing, performance criteria, the alarm of unacceptable product and storage, the testing result chart of detection data of the vacuum tightness of valve to generate and the historical functions such as data directory that detect to VS52 electricity, system man-machine interface is friendly, simple operation, working stability is reliable.
therefore, the present invention has that automaticity is high, measuring speed is fast, accuracy of detection is high, antijamming capability is strong, man-machine interface is friendly and the feature of simple operation.
Accompanying drawing explanation
Fig. 1 is a kind of general structure schematic block diagram of the present invention;
Fig. 2 is the work schematic block diagram of the impulse level modulation module 6 in Fig. 1;
Fig. 3 is system software main flow chart of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, not the restriction to protection domain:
A kind of pick-up unit of adjusting valve for VS52 electricity.This device as shown in Figure 1, comprises vacuum cylinder 1, host computer 2, signal source 3, data collecting card 4, alarm 5, the second gas pressure sensor 6, the first gas pressure sensor 7, VS52 electricity tune valve 8 and impulse level modulator 9.
The interface COM2 of host computer 2 is connected with the USB communication port 4a of data collecting card 4, and the port P0.0 of data collecting card 4 is connected with the power switch 1a of vacuum cylinder 1, and the port P1.0 of data collecting card 4 is connected with alarm 5.The gas outlet 1b of vacuum cylinder 1 adjusts the air intake opening 8a of valve 8 and the inlet end 7a of the first gas pressure sensor 7 to communicate respectively by pipeline with VS52 electricity, and the signal output part 7b of the first gas pressure sensor 7 is connected with the analog input end I0 of data collecting card 4.The interface COM1 of host computer 2 is connected with the USB (universal serial bus) input end 3a of signal source 3, the signal output part 3b of signal source 3 is connected with the signal input part 9a of impulse level modulator 9, the signal output part 9b of impulse level modulator 9 adjusts the power end 8b of valve 8 to be connected with VS52 electricity, VS52 electricity adjusts the gas outlet 8c of valve 8 to be connected with the inlet end 6a of the second gas pressure sensor 6, and the signal output part 6b of the second gas pressure sensor 6 is connected with the analog input end I1 of data collecting card 4.
Host computer 2 is equipped with the detection software that VS52 electricity is adjusted valve.
As shown in Figure 2, described impulse level modulator 9 is comprised of input filter module 90, constant current source 91, amplification module 92 and output filtering module 93.The output terminal of input filter module 90 is connected with the input end of constant current source 91, and the output terminal of constant current source 91 is connected with the input end of amplification module 92, and the output terminal of amplification module 92 is connected with the input end of output filtering module 93.The output terminal of output filtering module 93 adjusts the power end 8b of valve 8 to be connected with VS52 electricity, and the input end of input filter module 90 is connected with the output terminal 3b of signal source 3.
Described data collecting card 4 comprises eight road analog input ends and 12 railway digital output terminals, and A/D conversion accuracy is more than 12.
As shown in Figure 3, described VS52 electricity adjusts the main flow of the detection software of valve to be:
Step 1, setting party's wave impulse array, set duration of each square wave;
Step 2, start to detect, each square wave keeps after setting-up time the next square wave of output automatically;
Step 4, judge that force value corresponding to square-wave pulse array is whether all in normal range, if force value is all at normal model
In enclosing, enter step 5, otherwise, step 6 entered;
Step 5, judge that qualified and automatic preservation detects data;
Whether step 6, the also artificial decision of reporting to the police preserve detection data.
This embodiment compared with prior art has following economic effect:
The host computer 2 of this embodiment communicates by USB and data collecting card 4 and signal source 3, data collecting card 4 sends to host computer 2 by the real-time detector data of the first gas pressure sensor 7 and the second gas pressure sensor 6, host computer 2 is analyzed real-time detector data, draw out VS52 electricity and adjust the vacuum tightness relation curve corresponding to each square-wave pulse dutycycle of valve, by VS52, detect the performance of software automatic detection analysis VS52.
The VS52 that this embodiment adopts detects software and can adjust the vacuum tightness performance of valve 8 to make Fast Measurement to VS52 electricity, there is good automatic detection analysis performance and antijamming capability strong, data collecting card 4 has very high measuring accuracy, and can in complicated industrial environment, accurately work, guarantee stability and the reliability of this pick-up unit.This pick-up unit possesses to complete in real time adjusts collection, data analysis processing, performance criteria, the alarm of unacceptable product and storage, the testing result chart of detection data of the vacuum tightness of valve 8 to generate and the historical functions such as data directory that detect to VS52 electricity, system man-machine interface is friendly, simple operation, working stability is reliable.
therefore, this embodiment has that automaticity is high, measuring speed is fast, accuracy of detection is high, antijamming capability is strong, man-machine interface is friendly and the feature of simple operation.
Claims (4)
1. for VS52 electricity, adjust a pick-up unit for valve, it is characterized in that this device comprises vacuum cylinder (1), host computer (2), signal source (3), data collecting card (4), alarm (5), the second gas pressure sensor (6), the first gas pressure sensor (7), VS52 electricity tune valve (8) and impulse level modulator (9);
The interface COM2 of host computer (2) is connected with the USB communication port 4a of data collecting card (4), the port P0.0 of data collecting card (4) is connected with the power switch 1a of vacuum cylinder (1), and the port P1.0 of data collecting card (4) is connected with alarm (5); The gas outlet 1b of vacuum cylinder (1) adjusts the air intake opening 8a of valve (8) and the inlet end 7a of the first gas pressure sensor (7) to communicate respectively by pipeline with VS52 electricity, and the signal output part 7b of the first gas pressure sensor (7) is connected with the analog input end I0 of data collecting card (4); The interface COM1 of host computer (2) is connected with the USB (universal serial bus) input end 3a of signal source (3), the signal output part 3b of signal source (3) is connected with the signal input part 9a of impulse level modulator (9), the signal output part 9b of impulse level modulator (9) adjusts the power end 8b of valve (8) to be connected with VS52 electricity, VS52 electricity adjusts the gas outlet 8c of valve (8) to be connected with the inlet end 6a of the second gas pressure sensor (6), and the signal output part 6b of the second gas pressure sensor (6) is connected with the analog input end I1 of data collecting card (4);
Host computer (2) is equipped with the detection software that VS52 electricity is adjusted valve.
2. the pick-up unit of adjusting valve for VS52 electricity according to claim 1, is characterized in that described impulse level modulator (9) is comprised of input filter module (90), constant current source (91), amplification module (92) and output filtering module (93);
The output terminal of input filter module (90) is connected with the input end of constant current source (91), the output terminal of constant current source (91) is connected with the input end of amplification module (92), and the output terminal of amplification module (92) is connected with the input end of output filtering module (93); The output terminal of output filtering module (93) adjusts the power end 8b of valve (8) to be connected with VS52 electricity, and the input end of input filter module (90) is connected with the output terminal (3b) of signal source (3).
3. the pick-up unit of adjusting valve for VS52 electricity according to claim 1, is characterized in that described data collecting card (4) comprises eight road analog input ends and 12 railway digital output terminals, and A/D conversion accuracy is more than 12.
4. according to claim 1 for the electric pick-up unit of adjusting valve of VS52, it is characterized in that the main flow of the detection software of described VS52 electricity tune valve is:
Step 1, setting party's wave impulse array, set duration of each square wave;
Step 2, start to detect, each square wave keeps after setting-up time the next square wave of output automatically;
Step 3, host computer read the measurement data of corresponding the second gas pressure sensor of each square wave (6);
Step 4, judge that force value corresponding to square-wave pulse array is whether all in normal range, if force value all in normal range, enters step 5, otherwise, enter step 6;
Step 5, judge that qualified and automatic preservation detects data;
Whether step 6, the also artificial decision of reporting to the police preserve detection data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310677957.5A CN103630352A (en) | 2013-12-13 | 2013-12-13 | Device for detecting VS52 electric regulating valve |
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| CN201310677957.5A CN103630352A (en) | 2013-12-13 | 2013-12-13 | Device for detecting VS52 electric regulating valve |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0072181A2 (en) * | 1981-08-05 | 1983-02-16 | The Marconi Company Limited | A pulse width modulator |
| US6755078B2 (en) * | 2002-06-11 | 2004-06-29 | General Motors Corporation | Methods and apparatus for estimating the temperature of an exhaust gas recirculation valve coil |
| CN1618168A (en) * | 2002-02-05 | 2005-05-18 | 株式会社数字及模拟 | Digital PWM input D class amplifier by PMW negative feedback |
| CN101881704A (en) * | 2010-06-08 | 2010-11-10 | 武汉科技大学 | Vacuum valve quality detection platform |
| CN203243574U (en) * | 2013-05-16 | 2013-10-16 | 电子科技大学中山学院 | Small-size high-efficient high-power LED lighting driver |
-
2013
- 2013-12-13 CN CN201310677957.5A patent/CN103630352A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0072181A2 (en) * | 1981-08-05 | 1983-02-16 | The Marconi Company Limited | A pulse width modulator |
| CN1618168A (en) * | 2002-02-05 | 2005-05-18 | 株式会社数字及模拟 | Digital PWM input D class amplifier by PMW negative feedback |
| US6755078B2 (en) * | 2002-06-11 | 2004-06-29 | General Motors Corporation | Methods and apparatus for estimating the temperature of an exhaust gas recirculation valve coil |
| CN101881704A (en) * | 2010-06-08 | 2010-11-10 | 武汉科技大学 | Vacuum valve quality detection platform |
| CN203243574U (en) * | 2013-05-16 | 2013-10-16 | 电子科技大学中山学院 | Small-size high-efficient high-power LED lighting driver |
Non-Patent Citations (2)
| Title |
|---|
| 丁喜波等: "脉宽调制程控恒流源的设计", 《传感器与微系统》, vol. 27, no. 6, 30 June 2008 (2008-06-30), pages 88 - 90 * |
| 严保康等: "真空电磁阀测试系统的研究与应用", 《电子技术应用》, vol. 38, no. 1, 31 January 2012 (2012-01-31), pages 57 - 59 * |
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Application publication date: 20140312 |