CN201725183U - Automatic control principle experimental module - Google Patents
Automatic control principle experimental module Download PDFInfo
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- CN201725183U CN201725183U CN2010202934499U CN201020293449U CN201725183U CN 201725183 U CN201725183 U CN 201725183U CN 2010202934499 U CN2010202934499 U CN 2010202934499U CN 201020293449 U CN201020293449 U CN 201020293449U CN 201725183 U CN201725183 U CN 201725183U
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- output terminal
- operational amplifier
- automation
- control experiment
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Abstract
An automatic control principle experimental module comprises an analog circuit, a step-function signal switch, a step-function signal output end, a step-function signal regulating knob, a signal output end, a signal input end and a peripheral component interconnecting slot, wherein the analog circuit is based on the correction experiment content of a linear system, the step-function signal output end supplies step-function signals for the analog circuit, the step-function signal regulating knob regulates the amplitude value of a step-function signal, the signal output end outputs a measuring signal of the analog circuit to an experiment platform, the signal input end switches over the measuring signal of the analog circuit to the signal output end, the peripheral component interconnecting slot is connected with the experiment platform, and the analog circuit is integrated in the automatic control principle experimental module. The automatic control principle experimental module saves too much time of an experimenter on component preparation and experiment circuit building, thereby saving the time of teaching experiment.
Description
Technical field
The utility model relates to a kind of education experiment product, relates in particular to a kind of automation-control experiment module.
Background technology
At present, the used automation-control experiment system of teaching comprises following experiment content: the speed control experiment of the state space analysis of the correction of the root locus analysis of the time domain response of typical link, the time domain response of canonical system and stability analysis, linear system, the frequency response analysis of linear system, linear system, the stability analysis of discrete system, linear system, the test of typical non linear link static characteristics, direct current generator and electric thermo-couple temperature control experiment.Traditional automation-control experiment system utilizes bread board to build the required circuit of experiment, carrying out waveform by the parameter value on the manual adjustments oscillograph after circuit is built and finished shows, on bread board, build circuit and need be ready to the required electric wire of circuit, components and parts etc., again with ready components and parts and electric wire one by one in the inserting surface wrapper sheet, and need the manual adjustments oscillograph, holding time is more, and because the limitation of time in classroom, a lot of students can not finish experiment on time.
The utility model content
In view of the above-mentioned problems in the prior art, fundamental purpose of the present utility model is to address the deficiencies of the prior art, and a kind of automation-control experiment module of saving time in classroom is provided.
A kind of automation-control experiment module, it is characterized in that, described automation-control experiment module comprises a mimic channel based on the correction experiment content of linear system, one step signaling switch, one provides the step signal output terminal of step signal for described mimic channel, one regulates the step signal adjusting knob of step signal amplitude, one measuring-signal with described mimic channel exports the signal output part of an experiment porch to, one measuring-signal with described mimic channel is forwarded to the signal input part of described signal output part and the peripherals of the described experiment porch of a connection connects slot, and described mimic channel is integrated in the described automation-control experiment module.
According to technical conceive of the present utility model, the upper surface of described automation-control experiment module is drawn the circuit theory diagrams that described mimic channel is arranged.
According to technical conceive of the present utility model, the upper surface etching of described automation-control experiment module has the circuit theory diagrams of described mimic channel.
According to technical conceive of the present utility model, the upper surface of described automation-control experiment module is pasted with the circuit theory diagrams of described mimic channel.
According to technical conceive of the present utility model, described automation-control experiment module also comprises a signal generator output terminal.
According to technical conceive of the present utility model, described mimic channel comprises that one receives the step signal input end of step signal, the one the second measuring-signal output terminals of the measuring-signal of the described mimic channel of one output, first to fourth operational amplifier, first to the tenth resistance, first to the 3rd electric capacity and a phase inverter, described first resistance is connected between the inverting input of described step signal input end and described first operational amplifier, first end of described second resistance connects a binding post, second end connects the inverting input of described first operational amplifier, described the 3rd resistance is connected between the inverting input and output terminal of described first operational amplifier, the output terminal of described first operational amplifier connects a binding post, first end of described the 4th resistance connects a binding post, second end connects the inverting input of described second operational amplifier, the described the 5th, the 6th resistance is connected in series between the inverting input and output terminal of described second operational amplifier, described the 7th resistance and first capacitances in series are connected the described the 5th, between the series connection node and ground of the 6th resistance, the output terminal of described second operational amplifier connects a binding post, first end of described the 8th resistance connects a binding post, second end connects the inverting input of described the 3rd operational amplifier, described the 9th resistance and second electric capacity are connected in parallel between the inverting input and output terminal of described the 3rd operational amplifier, described the tenth resistance is connected between the inverting input of the output terminal of described the 3rd operational amplifier and four-operational amplifier, described the 3rd electric capacity is connected between the inverting input and output terminal of described four-operational amplifier, the output terminal of described four-operational amplifier is as the described second measuring-signal output terminal, the input end of described phase inverter connects a binding post, the output terminal of described phase inverter is as the described first measuring-signal output terminal, described step signal input end, the first measuring-signal output terminal, the second measuring-signal output terminal connects a binding post respectively.
The beneficial effects of the utility model are: the utility model is integrated in the circuit of the correction experiment content of linear system in the automation-control experiment module in advance, and replace traditional bread board to connect experiment porch, but plug and play, therefore the time that the experimenter need not to cost a lot of money can make full use of time in classroom and finish experiment and understand experiment content in the preparation of components and parts and building of experimental circuit.
Description of drawings
Fig. 1 is connected in the module map of an experiment porch for the utility model automation-control experiment module.
Fig. 2 is installed in the structural drawing on the base of described experiment porch for the automation-control experiment module among Fig. 1.
Fig. 3 is that the automation-control experiment module among Fig. 2 is installed in the vertical view on the described base.
Fig. 4 has the synoptic diagram of circuit theory diagrams for the automation-control experiment module among Fig. 1.
The circuit connection diagram of Fig. 5 when analyzing the response before the linear system compensation.
Fig. 6 utilizes the resulting linear system of circuit among Fig. 5 to proofread and correct preceding response curve.
The circuit connection diagram of Fig. 7 when analyzing the response after the linear system compensation.
Fig. 8 is the response curve after the resulting linear system correction of circuit that utilizes among Fig. 7.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Please refer to Fig. 1, the utility model automation-control experiment module 1 is used to connect a NI ELVIS experiment porch 2, be integrated with the mimic channel of a predetermined experiment content in the described automation-control experiment module 1, described NI ELVIS experiment porch 2 is gathered the signal of described mimic channel, and sends the signal that collects to a computing machine 3 and show.Described computing machine 3 comprises a signal gathering unit 31, a parameter regulation unit 32 and a signal imitation unit 33.In the present embodiment, described mimic channel is based on the correction experiment content design of linear system.
Please continue with reference to figure 2 and Fig. 3, described automation-control experiment module 1 is removably mounted on the base 20 of described NI ELVIS experiment porch 2, during concrete operations, traditional experiment bread board can be taken off from the base 20 of described NI ELVIS experiment porch, again described automation-control experiment module 1 is fixed on the described base on 20, the better embodiment of described automation-control experiment module 1 comprises a plurality of binding posts 12, one step signaling switch 13, one step Signal Regulation knob 14, one step signal output part 15, one signal input part 16, one signal output part 17, an one signal generator output terminal 18 and a PCI (Peripheral Component Interconnect, peripherals connects) slot 19 figure, when described automation-control experiment module 1 is fixed on the described base 20, its PCI slot 19 just contacts with golden finger on the described base 20, described step signal output terminal 15 is used to described mimic channel that step signal is provided, described step signal adjusting knob 14 is used to regulate the amplitude of described step signal, described signal output part 17 connects described NI ELVIS experiment porch 2, be used to gather the output signal of described automation-control experiment module 1, be the measuring-signal of described mimic channel, described signal input part 16 is used for the measuring-signal of described mimic channel is forwarded to described signal output part 17.
The signal output part that the signal gathering unit 31 and of described computing machine 3 is located at the described NIELVIS experiment porch 2 on the described base 20 links to each other, be used to receive input, the output signal of described automation-control experiment module 1, described signal gathering unit 31 is USB interface or IEEE 1394 interfaces.
Described parameter regulation unit 32 is by a signal imitation operation interface signalization acquisition parameter, for example, enable passage, triggering mode, sampling rate etc., in the present embodiment, can described signals collecting parameter be set in described signal imitation operation interface by input equipments such as computer keyboard, mouses.
Described signal imitation unit 33 carries out analog simulation by input, the output signal of the automation-control experiment module 1 that the interior software of establishing is received described signal gathering unit 31, to produce the waveform response curve of described mimic channel, and with the waveform response curve display that produces on the screen of described computing machine 3, for the experimenter observe, record.
Please continue with reference to figure 4, described automation-control experiment module 1 comprises that also one draws, glues card or is etched in circuit theory Figure 11 of its upper surface, described circuit theory Figure 11 schematic diagram for described mimic channel, and described mimic channel is the experimental circuit of " correction of linear system ".
Described mimic channel comprises that one receives the step signal input end r (t) of step signal, export the first measuring-signal output terminal C (t1) and the second measuring-signal output terminal C (t2) of described mimic channel measuring-signal, four operational amplifier U1-U4, resistance R 1-R10, a capacitor C 1-C3 and a phase inverter I, described signal input part r (t), the first measuring-signal output terminal C (t1) is connected a binding post 12 respectively with the second measuring-signal output terminal C (t2), described resistance R 1 is connected between the inverting input of described step signal input end r (t) and described operational amplifier U1, first end of described resistance R 2 connects a binding post 12, second end connects the inverting input of described operational amplifier U1, described resistance R 3 is connected between the inverting input and output terminal of described operational amplifier U1, the output terminal of described operational amplifier U1 connects a binding post 12, first end of described resistance R 4 connects a binding post 12, second end connects the inverting input of described operational amplifier U2, described resistance R 5, R6 is connected in series between the inverting input and output terminal of described operational amplifier U2, described resistance R 7 and capacitor C 1 are connected in series in described resistance R 5, between the series connection node and ground of R6, the output terminal of described operational amplifier U2 connects a binding post 12, first end of described resistance R 8 connects a binding post 12, second end connects the inverting input of described operational amplifier U3, described resistance R 9 and capacitor C 2 are connected in parallel between the inverting input and output terminal of described operational amplifier U3, described resistance R 10 is connected between the inverting input of the output terminal of described operational amplifier U3 and operational amplifier U4, described capacitor C 3 is connected between the inverting input and output terminal of described operational amplifier U4, the output terminal of described operational amplifier U4 is as the described second measuring-signal output terminal C (t2), the input end of described phase inverter I respectively is connected a binding post with output terminal, and the output terminal of described phase inverter I is as the described first measuring-signal output terminal C (t1).
Please continue with reference to figure 5 and Fig. 6, before described mimic channel is used for relatively proofreading and correct and the response of the linear system after proofreading and correct, when the response of linear system before the analysis correction, the output terminal of described operational amplifier U1 links to each other by corresponding binding post 12 with first end of described resistance R 8, and the output terminal of described operational amplifier U4 links to each other by corresponding binding post 12 with the input end of described phase inverter I and an end of resistance R 2 simultaneously.At this moment, the closed loop transfer function, of system is
Described step signal input end r (t) is linked to each other with the step signal output terminal 15 of described automation-control experiment module 1, the described first measuring-signal output terminal C (t1) is linked to each other with the signal input part 16 of described automation-control experiment module 1, and the amplitude of regulating step signal by described step signal adjusting knob 14 is 1V, set at described signal imitation operation interface and to enable passage, triggering mode, sampling rate, just can move input after the signals collecting parameters such as the method for operation to described automation-control experiment module 1, the emulation of output signal, and show the response curve of the linear system before proofreading and correct by described computing machine 3, at this moment, the shown response curve of described computing machine 3 as shown in Figure 6, observe every index of not proofreading and correct preceding linear system by this curve, as overshoot Mp, regulate time T s, static error coefficient Kv etc.
Please continue with reference to figure 7 and Fig. 8, in order to make the overshoot Mp that proofreaies and correct the back linear system be not more than 25%, regulate time T s and be not more than 1 second, static error coefficient Kv is not less than 20 (1/s), annexation between each element of described mimic channel is changed into: the output terminal of described operational amplifier U1 links to each other with first end of described resistance R 4, the output terminal of described operational amplifier U2 links to each other with first end of described resistance R 8, first end of described resistance R 2 links to each other with the output terminal of phase inverter I, the input end of described phase inverter I links to each other with the output terminal of operational amplifier U4, at this moment, the closed loop transfer function, of system is
Described step signal input end r (t) still links to each other with the step signal output terminal 15 of described automation-control experiment module 1, the described second measuring-signal output terminal C (t2) is linked to each other with the signal input part 16 of described automation-control experiment module 1, and the amplitude of regulating step signal by described step signal adjusting knob 14 is 1V, set at described signal imitation operation interface and to enable passage, triggering mode, sampling rate, just can move input after the signals collecting parameters such as the method for operation to described automation-control experiment module 1, the emulation of output signal, and show the response curve of the linear system after proofreading and correct by described computing machine 3, at this moment, the shown response curve of described computing machine 3 as shown in Figure 8, observe the overshoot Mp that does not proofread and correct preceding linear system by this curve, regulate time T s, static error coefficient Kv etc.
The utility model is integrated in the experimental circuit in the teaching material in the automation-control experiment module in advance, and replace traditional bread board to connect NI ELVIS test platform, but plug and play, the time that the experimenter need not to cost a lot of money is in the preparation of components and parts and building of experimental circuit, can be on computers signalization acquisition parameter quickly and accurately, and directly by described computing machine display waveform, the experimenter can make full use of time in classroom and finish experiment and understand experiment content.
Claims (6)
1. automation-control experiment module, it is characterized in that, described automation-control experiment module comprises a mimic channel based on the correction experiment content of linear system, one step signaling switch, one provides the step signal output terminal of step signal for described mimic channel, one regulates the step signal adjusting knob of step signal amplitude, one measuring-signal with described mimic channel exports the signal output part of an experiment porch to, one measuring-signal with described mimic channel is forwarded to the signal input part of described signal output part and the peripherals of the described experiment porch of a connection connects slot, and described mimic channel is integrated in the described automation-control experiment module.
2. automation-control experiment module as claimed in claim 1 is characterized in that: the upper surface of described automation-control experiment module is drawn the circuit theory diagrams that described mimic channel is arranged.
3. automation-control experiment module as claimed in claim 1 is characterized in that: the upper surface etching of described automation-control experiment module has the circuit theory diagrams of described mimic channel.
4. automation-control experiment module as claimed in claim 1 is characterized in that: the upper surface of described automation-control experiment module is pasted with the circuit theory diagrams of described mimic channel.
5. automation-control experiment module as claimed in claim 1 is characterized in that: described automation-control experiment module also comprises a signal generator output terminal.
6. automation-control experiment module as claimed in claim 1, it is characterized in that: described mimic channel comprises that one receives the step signal input end of step signal, the one the second measuring-signal output terminals of the measuring-signal of the described mimic channel of one output, first to fourth operational amplifier, first to the tenth resistance, first to the 3rd electric capacity and a phase inverter, described first resistance is connected between the inverting input of described step signal input end and described first operational amplifier, first end of described second resistance connects a binding post, second end connects the inverting input of described first operational amplifier, described the 3rd resistance is connected between the inverting input and output terminal of described first operational amplifier, the output terminal of described first operational amplifier connects a binding post, first end of described the 4th resistance connects a binding post, second end connects the inverting input of described second operational amplifier, the described the 5th, the 6th resistance is connected in series between the inverting input and output terminal of described second operational amplifier, described the 7th resistance and first capacitances in series are connected the described the 5th, between the series connection node and ground of the 6th resistance, the output terminal of described second operational amplifier connects a binding post, first end of described the 8th resistance connects a binding post, second end connects the inverting input of described the 3rd operational amplifier, described the 9th resistance and second electric capacity are connected in parallel between the inverting input and output terminal of described the 3rd operational amplifier, described the tenth resistance is connected between the inverting input of the output terminal of described the 3rd operational amplifier and four-operational amplifier, described the 3rd electric capacity is connected between the inverting input and output terminal of described four-operational amplifier, the output terminal of described four-operational amplifier is as the described second measuring-signal output terminal, the input end of described phase inverter connects a binding post, the output terminal of described phase inverter is as the described first measuring-signal output terminal, described step signal input end, the first measuring-signal output terminal, the second measuring-signal output terminal connects a binding post respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202934499U CN201725183U (en) | 2010-08-16 | 2010-08-16 | Automatic control principle experimental module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202934499U CN201725183U (en) | 2010-08-16 | 2010-08-16 | Automatic control principle experimental module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725183U true CN201725183U (en) | 2011-01-26 |
Family
ID=43493524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202934499U Expired - Lifetime CN201725183U (en) | 2010-08-16 | 2010-08-16 | Automatic control principle experimental module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725183U (en) |
-
2010
- 2010-08-16 CN CN2010202934499U patent/CN201725183U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ENAI INSTRUMENT CO., LTD. Free format text: FORMER OWNER: BEIJING ZHONG KE FAN HUA MEASUREMENT + CONTROL CO. LTD. Effective date: 20150731 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150731 Address after: 201203 Zhang Dong Road, Shanghai, No. forty-third, building 1387, 45, Pudong New Area Patentee after: Beijing Fanhua Hengxing Technology Co., Ltd. Address before: 100083 Beijing City, Haidian District Zhongguancun Road No. 18 smartfortune International Building A9 Patentee before: Beijing Zhongke Pansino Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |