CN104142441A - Cable excitation detector for system loop - Google Patents
Cable excitation detector for system loop Download PDFInfo
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- CN104142441A CN104142441A CN201310169956.XA CN201310169956A CN104142441A CN 104142441 A CN104142441 A CN 104142441A CN 201310169956 A CN201310169956 A CN 201310169956A CN 104142441 A CN104142441 A CN 104142441A
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- 230000005284 excitation Effects 0.000 title claims description 19
- 238000012360 testing method Methods 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 230000007257 malfunction Effects 0.000 claims description 5
- 230000000052 comparative effect Effects 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention belongs to the fault detection technology and relates to a detector for detecting excitation transmission cable faults in a full-size airplane structure intensity test system loop. The cable excitation detector for the system loop comprises a detecting device signal input end, a current signal detecting element, a current signal comparing circuit, a fault detecting execution circuit, a control cable output end and a fault feedback cable output end. The detecting device signal input end is connected with a control turning-connection cable and meanwhile connected with the control cable output end and the current signal detecting element. The current signal detecting element is sequentially connected with the current signal comparing circuit, the fault detecting execution circuit and a fault feedback cable output end. In a full-size airplane structure static/fatigue test, the cable excitation detector can effectively improve reliability of test equipment, it can be ensured that no damage to test parts is caused by the test equipment, meanwhile, control precision is not affected, and great actual application value is achieved.
Description
Technical field
The invention belongs to fault detection technique, relate to a kind of detecting device that encourages transmission cable fault in complete aircraft stryctyrak test system circuit that detects.
Background technology
In the static(al)/torture test of complete aircraft structure, control system adopts closed-loop control, control loop comprises: opertaing device, control cable, measuring sensor and topworks, between opertaing device and measuring sensor and topworks, need some control cable signal transmissions, the correctness of cable transmission and reliability directly affect Loading Control result.If any improper, may cause damage to testpieces.
MOOG coordinated loading control system adopts eight line systems to control, and it is positive and negative that bridge is pressed excitation, and it is positive and negative that bridge presses excitation to detect, and bridge road feedback is positive and negative, and bridge road feedback detects positive and negative.Whole control system was only considered the voltage signal in transmission loop to measure at the design initial stage, thereby guaranteed that measuring sensor applies the accuracy of excitation, and whether by shunting verification, detect whole electric loop normal.But this detection mode is a kind of discrete type to be detected, i.e. this detection can only guarantee that whole system is normal in monitoring point, and the system that can not guarantee, whether normal in the process of implementation, does not reach the object of Real-Time Monitoring.In actual use, if losing efficacy, the excitation that occurs to detect in test loading procedure will directly cause testpieces to damage.
Summary of the invention
The object of the invention is: a kind of effectively reliability of strengthen test equipment is provided, guarantees because testing equipment reason causes testpieces, not damage, do not affect the system circuit cable excitation detecting device of control accuracy simultaneously.
Technical scheme of the present invention is: a kind of system circuit cable excitation detecting device, it comprises pick-up unit signal input part, current signal detecting element, current signal comparator circuit, fault detect executive circuit, control cable output terminal, fault feedback cable output terminal, pick-up unit signal input part is connected with control switching cable, and be connected with current signal detecting element with control cable output terminal simultaneously, current signal detecting element connects current signal comparator circuit successively, fault detect executive circuit, fault feedback cable output terminal, and control cable output terminal, connect subsequent control cable, fault feedback cable output terminal joint test loading equipemtn.
Described current signal detecting element is for converting current signal to the Low ESR chip of voltage signal.
Described current signal comparator circuit is a kind of whether circuit in the scope setting of the electric current of excitation in cable that detects, and limited range regulates as required.
Described current signal comparator circuit is by voltage comparing element, voltage benchmark regulating element, voltage comparing element, voltage benchmark regulating element, logical calculated element forms, by current signal detecting element, convert the current signal in excitation cable to can compare voltage signal, by voltage benchmark regulating element and voltage benchmark regulating element, adjust upper of voltage ratio, lower scope, by voltage comparing element and voltage comparing element, compared, comparative result is input in logical calculated element simultaneously, when the voltage that collects of stream signal detection component is at voltage benchmark regulating element and voltage benchmark regulating element limited range, logical calculated element is exported correct signal, no side output error signal.
Described fault detect executive circuit is a kind of executive component, and whether its result according to current signal comparator circuit is carried out and malfunction is transferred in test coordination loading equipemtn.
Described fault detect executive circuit is comprised of executive circuit signal amplification component, executive circuit make-and-break signal output terminal, executive circuit voltage signal output end, it carries out signal according to the result of current signal comparator circuit by executive circuit signal amplification component and amplifies and to reach the object that drives executive circuit make-and-break signal output terminal and executive circuit voltage signal output end, then by fault, feed back cable output terminal malfunction is transferred in test coordination loading equipemtn.
Technique effect of the present invention is: cable excitation detecting device of the present invention is in the static(al)/torture test of complete aircraft structure, the effective reliability of strengthen test equipment, guarantee because testing equipment reason causes testpieces, not damage, do not affect control accuracy, specifically there is advantage simultaneously:
● through design cleverly, utilize simple circuit, a small amount of element, has solved the large problem in engineering;
● it is abnormal that this equipment can detect control system loop in time, to testpieces, can play effective protective effect safely;
● device is simple, is easy to install; Show and understand, be convenient to check;
● reliable and stable equipment performance has won good reputation;
● processing technology is simple, changes easy, with low cost;
● pick-up unit does not affect the performance of existing system;
● filled up current technological gap.
Accompanying drawing explanation
Fig. 1 is control cables tester principle schematic of the present invention;
Fig. 2 is current signal comparator circuit schematic diagram;
Fig. 3 fault detect executive circuit schematic diagram,
Wherein, 1-pick-up unit signal input part, 2-current signal detecting element, 3-current signal comparator circuit, 4-fault detect executive circuit, 5-control cable output terminal, 6-fault feedback cable output terminal, 7-test loading equipemtn, 8-voltage comparing element, 9-voltage benchmark regulating element, 10-voltage comparing element, 11-voltage benchmark regulating element, 12-logical calculated element, 13-executive circuit signal amplification component, 14-executive circuit make-and-break signal output terminal, 15-executive circuit voltage signal output end.
Embodiment
Below in conjunction with accompanying drawing, many present invention are described further:
Refer to Fig. 1, system circuit cable excitation detecting device of the present invention, it comprises pick-up unit signal input part 1, current signal detecting element 2, current signal comparator circuit 3, fault detect executive circuit 4, control cable output terminal 5, fault feedback cable output terminal 6, pick-up unit signal input part 1 is connected with control switching cable, and be connected with current signal detecting element 2 with control cable output terminal 5 simultaneously, current signal detecting element 2 connects current signal comparator circuit 3 successively, fault detect executive circuit 4, fault feedback cable output terminal 6, and control cable output terminal 5, connect subsequent control cable, fault feedback cable output terminal 6 joint test loading equipemtns 7.Described current signal detecting element is for converting current signal to the Low ESR chip of voltage signal.
Refer to Fig. 2, described current signal comparator circuit consists of voltage comparing element 8, voltage benchmark regulating element 9, voltage comparing element 10, voltage benchmark regulating element 11, logical calculated element 12.By current signal detecting element 2, convert the current signal in excitation cable to can compare voltage signal, by voltage benchmark regulating element 9 and voltage benchmark regulating element 11, adjust upper of voltage ratios, lower scope, by voltage comparing element 8 and voltage comparing element 10, compared, comparative result is input in logical calculated element 12 simultaneously, when the voltage that collects of stream signal detection component 2 is at voltage benchmark regulating element 9 and voltage benchmark regulating element 11 limited ranges, logical calculated element 12 is exported correct signals, no side output error signal.
Refer to Fig. 3, described fault detect executive circuit is comprised of executive circuit signal amplification component 13, executive circuit make-and-break signal output terminal 14, executive circuit voltage signal output end 15.It carries out signal according to the result of current signal comparator circuit 3 by executive circuit signal amplification component 13 and amplifies and to reach the object that drives executive circuit make-and-break signal output terminal 14 and executive circuit voltage signal output end 15, then by fault, feed back cable output terminal 6 malfunction is transferred in test coordination loading equipemtn 7.
While implementing to install, series winding access excitation pick-up unit on control system channel loop, and by the fault-signal line access test Loading Control equipment 7 in fault detect executive circuit 4.When system circuit is normal, test loads and encourages control signal by pick-up unit signal input part 1 and control cable output terminal 5 access test loading excitation cable again, detector detects pumping signal in real time by current signal detecting element 2, and test can normally move.When the pumping signal of channel loop breaks down, electric current in pumping signal changes, current signal detecting element 2 real-time monitors the variation of electric current, and judge according to current signal comparator circuit 3 whether the variation range of electric current surpasses the scope of having set, if not surpassing test proceeds, if but surpass the scope of having set, detector can transmit a signal to control system 7 by fault detect executive circuit 4 and fault feedback cable output terminal 6, make test unloading release, corresponding failure message is shown to be controlled on computing machine, notify personnel handling failure.
Claims (6)
1. a system circuit cable encourages detecting device, it is characterized in that, comprise pick-up unit signal input part, current signal detecting element, current signal comparator circuit, fault detect executive circuit, control cable output terminal, fault feedback cable output terminal, pick-up unit signal input part is connected with control switching cable, and be connected with current signal detecting element with control cable output terminal simultaneously, current signal detecting element connects current signal comparator circuit successively, fault detect executive circuit, fault feedback cable output terminal, and control cable output terminal, connect subsequent control cable, fault feedback cable output terminal joint test loading equipemtn.
2. system circuit cable excitation detecting device according to claim 1, is characterized in that, described current signal detecting element is for converting current signal to the Low ESR chip of voltage signal.
3. system circuit cable according to claim 1 excitation detecting device, is characterized in that, described current signal comparator circuit is a kind of whether circuit in the scope setting of electric current in excitation cable that detects, and limited range regulates as required.
4. system circuit cable according to claim 3 encourages detecting device, it is characterized in that, described current signal comparator circuit is by voltage comparing element, voltage benchmark regulating element, voltage comparing element, voltage benchmark regulating element, logical calculated element forms, by current signal detecting element, convert the current signal in excitation cable to can compare voltage signal, by voltage benchmark regulating element and voltage benchmark regulating element, adjust upper of voltage ratio, lower scope, by voltage comparing element and voltage comparing element, compared, comparative result is input in logical calculated element simultaneously, when the voltage that collects of stream signal detection component is at voltage benchmark regulating element and voltage benchmark regulating element limited range, logical calculated element is exported correct signal, no side output error signal.
5. system circuit cable according to claim 1 encourages detecting device, it is characterized in that, described fault detect executive circuit is a kind of executive component, and whether its result according to current signal comparator circuit is carried out and malfunction is transferred in test coordination loading equipemtn.
6. system circuit cable according to claim 5 encourages detecting device, it is characterized in that, described fault detect executive circuit is comprised of executive circuit signal amplification component, executive circuit make-and-break signal output terminal, executive circuit voltage signal output end, it carries out signal according to the result of current signal comparator circuit by executive circuit signal amplification component and amplifies and to reach the object that drives executive circuit make-and-break signal output terminal and executive circuit voltage signal output end, then by fault, feed back cable output terminal malfunction is transferred in test coordination loading equipemtn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310169956.XA CN104142441A (en) | 2013-05-10 | 2013-05-10 | Cable excitation detector for system loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310169956.XA CN104142441A (en) | 2013-05-10 | 2013-05-10 | Cable excitation detector for system loop |
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| Publication Number | Publication Date |
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| CN104142441A true CN104142441A (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310169956.XA Pending CN104142441A (en) | 2013-05-10 | 2013-05-10 | Cable excitation detector for system loop |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474445A (en) * | 2020-04-16 | 2020-07-31 | 中国飞机强度研究所 | Fault positioning monitoring device and structural strength test load loading device thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459142A (en) * | 2000-09-18 | 2003-11-26 | 泰拉尔国际有限公司 | Method and device for controlling operation of an actuator unit |
| CN1914652A (en) * | 2004-11-25 | 2007-02-14 | 松下电工株式会社 | Wireless sensor device |
| CN1988304A (en) * | 2006-12-11 | 2007-06-27 | 华为技术有限公司 | Method and system for realizing detection protection in far away power supply |
| CN101627313A (en) * | 2006-11-01 | 2010-01-13 | Abb研究有限公司 | Cable Fault Detection |
| DE102011118667A1 (en) * | 2010-11-19 | 2012-05-24 | GM Global Technology Operations LLC | SYSTEM AND METHOD FOR EVALUATING A WIRE GUIDE |
| CN102998595A (en) * | 2012-12-14 | 2013-03-27 | 大连国通电气有限公司 | Cable uniform current detection device and method for achieving same |
-
2013
- 2013-05-10 CN CN201310169956.XA patent/CN104142441A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459142A (en) * | 2000-09-18 | 2003-11-26 | 泰拉尔国际有限公司 | Method and device for controlling operation of an actuator unit |
| CN1914652A (en) * | 2004-11-25 | 2007-02-14 | 松下电工株式会社 | Wireless sensor device |
| CN101627313A (en) * | 2006-11-01 | 2010-01-13 | Abb研究有限公司 | Cable Fault Detection |
| CN1988304A (en) * | 2006-12-11 | 2007-06-27 | 华为技术有限公司 | Method and system for realizing detection protection in far away power supply |
| DE102011118667A1 (en) * | 2010-11-19 | 2012-05-24 | GM Global Technology Operations LLC | SYSTEM AND METHOD FOR EVALUATING A WIRE GUIDE |
| CN102998595A (en) * | 2012-12-14 | 2013-03-27 | 大连国通电气有限公司 | Cable uniform current detection device and method for achieving same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474445A (en) * | 2020-04-16 | 2020-07-31 | 中国飞机强度研究所 | Fault positioning monitoring device and structural strength test load loading device thereof |
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Inventor after: Zhao Chan Inventor after: Chen Ge Inventor after: Mi Zheng Inventor after: Gui Zhenzheng Inventor after: Cao Yingping Inventor after: Guo Xiaodong Inventor before: Zhao Chan Inventor before: Chen Ge Inventor before: Mi Zheng Inventor before: Gui Zhenzheng Inventor before: Cao Yingping Inventor before: Guo Xiaodong |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141112 |
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