CN201226095Y - Vibration ageing effect control system - Google Patents
Vibration ageing effect control system Download PDFInfo
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- CN201226095Y CN201226095Y CNU2008200291859U CN200820029185U CN201226095Y CN 201226095 Y CN201226095 Y CN 201226095Y CN U2008200291859 U CNU2008200291859 U CN U2008200291859U CN 200820029185 U CN200820029185 U CN 200820029185U CN 201226095 Y CN201226095 Y CN 201226095Y
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Abstract
The utility model discloses a vibration ageing control system used for eliminating residual stress produced by metal in production procedures such as welding, etc., which relates to the technical field of vibration testing. The vibration ageing control system comprises a data collecting card (2) and a personal computer (1), wherein the personal computer (1) is connected with a wire connecting terminal panel (3) through the data collecting card (2), and the wire connecting terminal panel (3) is connected with a vibration generator control circuit (5) through an auto-transformer (4). The control frequency output of the wire connecting terminal panel (3) is directly connected with the vibration generator control circuit (5) which is connected with a vibration generator (6), and the vibration generator (6) is connected with a detection signal retaining circuit (8) of acceleration peak values, and the detection signal retaining circuit (8) of acceleration peak values is connected with the input of the wire connecting terminal panel (3). In the vibration ageing control system, the personal computer is used for replacing a singlechip, software can be modified and debugged on the personal computer, and can be easily programmed and modified, so the performance of the vibration ageing control system is visually embodied.
Description
Technical field:
The utility model relates to the vibration test technology field that is used for eliminating the unrelieved stress that metal produces in production processes such as welding, particularly relates to a kind of oscillating aging control system.
Background technology:
In the prior art, vibration ageing device designs based on single-chip microcomputer often, and its ipc monitor system adopts the VB language, and slave computer adopts Single-chip Controlling.The defective of its existence is: the development scheme of single-chip microcomputer such as need design to the software and hardware of data collecting part at loaded down with trivial details low level development, and need utilize high-level programming language to write pc control procedure and man-machine interface and realize control vibration ageing device, construction cycle is long, man-machine interface is poor, the defective of very flexible.
Summary of the invention:
The purpose of this utility model is to provide a kind of oscillating aging control system at defective of the prior art, and it passes through the TT﹠C system of Virtual Instrument Development oscillating aging, thereby has effectively overcome a series of problems of the described existence of background technology.
The technical scheme that its technical matters that solves the utility model adopts is: described a kind of oscillating aging control system, comprise data collecting card (2) and be used for the PC (1) of control data capture card (2), be characterized in: on the described PC (1) that is used for control data capture card (2) the LabVIEW primary control program is installed, PC (1) links to each other with terminal board (3) by data collecting card (2), the control voltage output of terminal board (3) links to each other with vibrator control circuit (5) by auto-transformer (4), the controlled frequency delivery outlet of terminal board (3) directly links to each other with vibrator control circuit (5), vibrator control circuit (5) connects vibrator (6), vibrator (6) links to each other with acceleration peak value detection signal holding circuit (8) by acceleration transducer (7), and acceleration peak value detection signal holding circuit (8) is connected with the input port of terminal board (3).
The model of described data collecting card (2) is PCI 6041.
Described acceleration peak value detection signal holding circuit (8) includes first unit of OP221, capacitor C 31, and triode Q30 constitutes first order peak-holding circuit; Second unit of OP221, capacitor C 34, triode Q34, photoelectrical coupler TP521 constitutes second level peak-holding circuit; The voltage follower that constitutes by the one-level operational amplifier for the voltage leakage loss in time that reduces capacitor C 34 sustaining voltages.
Described vibrator control circuit (5) includes the JP1 interface that is connected with computing machine, the JP1 interface is connected with peak detection circuit, peak detection circuit links to each other with operational amplifier, triangular-wave generator links to each other with operational amplifier A 2, triangular-wave generator links to each other with rest-set flip-flop, triode Q1, Q2 link to each other with rest-set flip-flop, and the oscillator that C3, L1, D1 form links to each other with triangular-wave generator, and oscillator links to each other with the full-wave rectifying circuit of being made up of D2, D3, D4, D5.
The utility model is compared with background technology, the beneficial effect that has is: described a kind of oscillating aging control system, it is by the TT﹠C system of Virtual Instrument Development oscillating aging, in this system, given full play to the advantage of LabVIEW TT﹠C system exploitation, utilize powerful graphical programming language LabVIEW on PC, to write Control Software, replace single-chip microcomputer with PC, software can be revised on PC and debug, establishment and modification are easily, shortened the program development time greatly, improved work efficiency, made that the control system performance is embodied intuitively.
Description of drawings:
Fig. 1 is a hardware controlling structural representation of the present utility model;
Fig. 2 is the schematic diagram of acceleration peak value detection signal holding circuit (8) among the utility model Fig. 1;
Fig. 3 is the schematic diagram of vibrator control circuit (5) among the utility model Fig. 1;
Fig. 4 is the process flow diagram of enforcement of the present utility model.
Embodiment:
Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing:
As shown in Figure 1, described a kind of oscillating aging control system, comprise data collecting card 2 and the PC 1 that is used for control data capture card 2, be characterized in: on the described PC 1 that is used for control data capture card 2 the LabVIEW primary control program is installed, PC 1 links to each other with terminal board 3 by data collecting card 2, the control voltage output of terminal board 3 links to each other with vibrator control circuit 5 by auto-transformer 4, the controlled frequency delivery outlet of terminal board 3 directly links to each other with vibrator control circuit 5, vibrator control circuit 5 connects vibrator 6, vibrator 6 links to each other with acceleration peak value detection signal holding circuit 8 by acceleration transducer 7, and acceleration peak value detection signal holding circuit 8 is connected with the input port of terminal board 3.
PCI6014 data collecting card 2 is contained in PC 1 the inside, and PCI6014 data collecting card 2 is wanted to connect by cable and terminal board 3.Terminal board 3 links to each other with external unit respectively, and two outputs and an input are arranged.By primary control program, produce the output of Control current and controlled frequency, Control current is connected to vibrator control circuit 5 by auto-transformer with controlled frequency.
As shown in Figure 2, described acceleration peak value detection signal holding circuit 8 includes first unit of OP221, capacitor C 31, and triode Q30 etc. constitute first order peak-holding circuit.Its with the voltage that keeps on the capacitor C 31 as feedback signal, comparer OP221-1 output high level when voltage that the input acceleration signal keeps on greater than current capacitor C 31, drive triode Q30 saturation conduction, give capacitor C 31 rapid charges, i.e. the voltage follow input voltage that keeps on the capacitor C 31.When after applied signal voltage reaches peak value, falling after rise, comparer OP221-1 output low level, triode Q30 ends.At this moment, the voltage that keeps on the capacitor C 31 is the maximal value of input signal.Also include second unit of OP221, capacitor C 34, triode Q34, photoelectrical coupler TP521 etc. constitute second level peak-holding circuit.Second level peak-holding circuit keeps the output of first order peak-holding circuit during synchronizing pulse, and at the synchronizing pulse negative edge first order peak-holding circuit is resetted, the peak value of the next input signal of preparation for acquiring.In order to reduce the voltage leakage loss in time of capacitor C 34 sustaining voltages, increase the voltage follower that the one-level operational amplifier constitutes.For fear of when first order peak-holding circuit resets to the influence of second level peak-holding circuit output valve, insert photoelectrical coupler TP521 as analog switch, conducting during synchronizing pulse is closed at synchronizing pulse negative edge analog switch the I and II peak-holding circuit is isolated.
Native system with the difference of vibration frequency, needs to detect the acceleration responsive of each vibration period internal vibration object when work.By the experimental observation analysis, because the difference of acceleration transducer riding position, the relative vibrator drive current of acceleration peak value has the time lag greater than 0.2ms.And increase with the increase of placing distance.Native system requires the vibration acceleration response value under each vibratory impulse driving is made analysis, die with driving pulse as synchronizing pulse, to resetting before the vibration acceleration response value of the vibration acceleration response value under the last vibratory impulse driving under detecting this vibratory impulse driving.Honeybee plant quarantine slowdown monitoring circuit output amplitude is the vibration acceleration response value under each vibratory impulse driving, and constantly refreshes with the vibration acceleration response value under vibratory impulse drives next time.
As shown in Figure 3, described vibrator control circuit 5 includes the JP1 interface that is connected with computing machine, the JP1 interface is connected with peak detection circuit, peak detection circuit links to each other with operational amplifier, triangular-wave generator links to each other with operational amplifier A 2, and triangular-wave generator links to each other with rest-set flip-flop, and triode Q1, Q2 link to each other with rest-set flip-flop, the oscillator that C3, L1, D1 form links to each other with triangular-wave generator, and oscillator links to each other with the full-wave rectifying circuit of being made up of D2, D3, D4, D5.
JP1 is and the interface of computing machine that the width of input Computer I/O interface output is that 1.25ms, frequency are pulse and the D/A translation interface output voltage of 1～400Hz.JP1 is and the computer interface web member.With computing machine D/A translation interface output voltage as input, with the voltage signal of peak detection circuit (peak detection circuit is an independent circuit in the native system) output as feedback signal.Operational amplifier A 2 output bias signals, with triangular-wave generator output triangular signal relatively, by rest-set flip-flop output pulse width modulation signal, control triode Q1, Q2 conducting or end.The frequency of setting by triangular-wave generator to the oscillator of being made up of C3, L1, D1 after the AC power full-wave rectification provides electric current, and the current effective value size depends on by rest-set flip-flop output pulse width modulation signal.The full-wave rectifying circuit rectification that the oscillator output AC voltage is formed via D2, D3, D4, D5, in the C6 accumulation of energy, the output DC source.
At the width of Computer I/O interface output is that 1.25ms, frequency are under the pulse signal effect 1～400Hz scope in, drives triode 3 conductings, generation driving pulse electric current.Sampling pulse voltage on the sampling resistor R31 is imported peak detection circuit and is converted to the feedback signal of DC voltage as current controling signal after amplifier A1 oppositely amplifies.
This power circuit has two inputs: computing machine D/A translation interface output voltage; The width of Computer I/O interface output is that 1.25ms, frequency are the pulse of 1～400Hz.Power supply is output as driving power provides 1～20 ampere driving pulse electric current to transducer.By computing machine D/A translation interface output voltage controlling and driving pulse current size, driving power provides 1～20 ampere driving pulse electric current to transducer under the pulsed drive of optional frequency in 1～400Hz scope, is a following control system of following computing machine D/A translation interface output voltage at the wide region drive current.Requirement keeps pulsed drive current corresponding to computing machine D/A conversion output voltage in frequency is 1～400Hz scope, and the variation with pulsed frequency does not change.
As shown in Figure 4, described a kind of oscillating aging control system is when implementing, by PC 1 beginning start-up routine initialization data capture card 2, whether scrutiny program starts normal, want manual intervention as if undesired, if the normal program of entering that starts begins the interface and selects to enter each module according to user's needs.If first workpiece then needs at first to enter the preceding frequency sweep module of shaking, the preceding frequency sweep of shaking after sweep parameters is provided with before shaking, the laggard line data of frequency sweep data processing is preserved before shaking.Ageing Treatment does not then log off but select to enter the Ageing Treatment module again in module is selected if desired, carries out Ageing Treatment after being provided with through the Ageing Treatment parameter equally and after deal with data data is preserved.Still enter the back frequency sweep module of shaking in the selection module again afterwards, also termination routine can log off after the back frequency sweep of shaking after being provided with through the back sweep parameters of shaking and deal with data, the preservation data.If workpiece through after the frequency sweep before having shaken, then can directly enter the Ageing Treatment module, can log off after preserving through parameter setting, data processing and data and termination routine or enter the back frequency sweep module of shaking as required.If the back frequency sweep of need directly shaking is arranged, also can in selecting module, directly enter the back frequency sweep module of shaking, after the back frequency sweep of shaking, log off and termination routine.In the selection module, directly do not enter frequency sweep data query module or timeliness data query module according to user's needs if do not need workpiece only handled to inquire about then former data.The frequency sweep data or the back frequency sweep data of shaking then entered frequency sweep data query module before inquiry was shaken if desired, logged off after the graphic presentation of data being come out to print as required after selecting data and termination routine or do not print directly logs off and termination routine.Inquire about the Ageing Treatment data if desired and then enter timeliness data query module, log off after after selecting data, the graphic presentation of data being come out to print as required and termination routine or do not print directly logs off and termination routine.
Claims (4)
1. oscillating aging control system, comprise data collecting card (2) and be used for the PC (1) of control data capture card (2), it is characterized in that: on the described PC (1) that is used for control data capture card (2) the LabVIEW primary control program is installed, PC (1) links to each other with terminal board (3) by data collecting card (2), the control voltage output of terminal board (3) links to each other with vibrator control circuit (5) by auto-transformer (4), the controlled frequency delivery outlet of terminal board (3) directly links to each other with vibrator control circuit (5), vibrator control circuit (5) connects vibrator (6), vibrator (6) links to each other with acceleration peak value detection signal holding circuit (8) by acceleration transducer (7), and acceleration peak value detection signal holding circuit (8) is connected with the input port of terminal board (3).
2. a kind of oscillating aging control system according to claim 1 is characterized in that: the model of described data collecting card (2) is PCI 6041.
3. a kind of oscillating aging control system according to claim 1 is characterized in that: described acceleration peak value detection signal holding circuit (8) includes first unit of OP221, capacitor C 31, and triode Q30 constitutes first order peak-holding circuit; Second unit of OP221, capacitor C 34, triode Q34, photoelectrical coupler TP521 constitutes second level peak-holding circuit; The voltage follower that constitutes by the one-level operational amplifier for the voltage leakage loss in time that reduces capacitor C 34 sustaining voltages.
4. a kind of oscillating aging control system according to claim 1, it is characterized in that: described vibrator control circuit (5) includes the JP1 interface that is connected with computing machine, the JP1 interface is connected with peak detection circuit, peak detection circuit links to each other with operational amplifier, triangular-wave generator links to each other with operational amplifier A 2, triangular-wave generator links to each other with rest-set flip-flop, triode Q1, Q2 link to each other with rest-set flip-flop, the oscillator that C3, L1, D1 form links to each other with triangular-wave generator, and oscillator links to each other with the full-wave rectifying circuit of being made up of D2, D3, D4, D5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200291859U CN201226095Y (en) | 2008-05-26 | 2008-05-26 | Vibration ageing effect control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200291859U CN201226095Y (en) | 2008-05-26 | 2008-05-26 | Vibration ageing effect control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201226095Y true CN201226095Y (en) | 2009-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200291859U Expired - Fee Related CN201226095Y (en) | 2008-05-26 | 2008-05-26 | Vibration ageing effect control system |
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| CN (1) | CN201226095Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722189A (en) * | 2011-06-20 | 2012-10-10 | 兰州交通大学 | Multipoint vibration aging control system |
| CN103353732A (en) * | 2013-07-26 | 2013-10-16 | 北京翔博科技有限责任公司 | Control circuit of modal wideband vibration elimination stress device and control method |
-
2008
- 2008-05-26 CN CNU2008200291859U patent/CN201226095Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722189A (en) * | 2011-06-20 | 2012-10-10 | 兰州交通大学 | Multipoint vibration aging control system |
| CN103353732A (en) * | 2013-07-26 | 2013-10-16 | 北京翔博科技有限责任公司 | Control circuit of modal wideband vibration elimination stress device and control method |
| CN103353732B (en) * | 2013-07-26 | 2016-01-20 | 北京翔博科技有限责任公司 | Mode wideband vibratory stress reliefing equipment control circuit and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20100526 |