CN201853399U - Automatic-control principle experiment module - Google Patents
Automatic-control principle experiment module Download PDFInfo
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- CN201853399U CN201853399U CN2010202933458U CN201020293345U CN201853399U CN 201853399 U CN201853399 U CN 201853399U CN 2010202933458 U CN2010202933458 U CN 2010202933458U CN 201020293345 U CN201020293345 U CN 201020293345U CN 201853399 U CN201853399 U CN 201853399U
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Abstract
The utility model relates to an automatic-control principle experiment module which comprises an analog circuit which is based on all typical link time-domain response experiment contents, a step signal switch, a step signal output end which is used for providing step signals to the analog circuit, a step signal adjusting knob which is used for adjusting the amplitude of the step signals, a signal output end which is used for outputting the measurement signals of the analog circuit to an experiment platform, a signal input end which is used for transferring the measurement signals of the analog circuit to the signal output end, and a peripheral equipment connecting slot which is connected with the experiment platform, wherein the analog circuit is integrated into the automatic-control principle experiment module. By using the automatic-control principle experiment module, experimenters are not required to spend much time in preparing devices and establishing an experiment circuit, and thereby the teaching experiment time can be saved.
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 each typical link time domain response experiment content, 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, also be integrated with a plurality of independent components and parts in the described automation-control experiment module, each described independent components and parts two ends is connected with binding post, and the one or more binding posts by correspondence in the described independent components and parts are connected in described mimic channel.
According to technical conceive of the present utility model, described mimic channel comprises that one receives the step signal input end of step signal, one connects the input signal collection terminal of described step signal input end, one is used to connect the measuring-signal output terminal of the signal input part of described automation-control experiment module, one operational amplifier, first to fourth resistance, first, second electric capacity and a phase inverter, described input signal collection terminal connects described experiment porch, described input signal collection terminal, the step signal input end, the measuring-signal output terminal connects a binding post respectively, described first resistance is connected between the inverting input of described step signal input end and operational amplifier, one end of described second resistance connects the inverting input of described operational amplifier, one end of described the 3rd resistance connects the output terminal of described operational amplifier, the two ends of described first to the 3rd resistance and first electric capacity respectively connect a binding post, one end of described second electric capacity connects a binding post, described the 4th resistance is connected between the other end and ground of described second electric capacity, the input end of described phase inverter connects a binding post, and the output terminal of described phase inverter is as described measuring-signal output terminal.
According to technical conceive of the present utility model, it is characterized in that: described second electric capacity has a fixing appearance value, and described the 3rd resistance has a fixed resistance value, and described first to the 3rd resistance and first electric capacity are respectively in the described independent components and parts.
The beneficial effects of the utility model are: the utility model is integrated in the circuit that the time domain response of each typical link of mimic channel is tested 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 automation-control experiment module of the present invention.
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.
Fig. 5, Fig. 8, Figure 11, Figure 14, Figure 17 and Figure 20 are respectively observation proportional component, integral element, proportional integral link, inertial element, the circuit connection diagram when ratio is divided differentiation element and proportion integration differentiation link.
Fig. 6, Fig. 7, Fig. 9, Figure 10, Figure 12, Figure 13, Figure 15, Figure 16, Figure 18, Figure 19, Figure 21 and Figure 22 are the waveform response curve map of the shown described automation-control experiment module of computing machine among Fig. 1.
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 experiment content design of the time domain response of each typical link of mimic channel.
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, when described automation-control experiment module 1 is fixed on the described base 20, its PCI slot 19 just with described base 20 on golden finger electrically contact, 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 to Fig. 7, 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, also be integrated with a plurality of independent components and parts that optionally are connected to described mimic channel in the described automation-control experiment module 1, as the resistance among Fig. 4 is the resistance of 10K Ω, 100K Ω, 200K Ω and the electric capacity that appearance is worth 1 μ F, 2 μ F, and the two ends of each described independent components and parts all are connected with binding post 12.
Described mimic channel is used to realize the time domain response of each typical link of mimic channel, it comprises an input signal collection terminal Ui, one connects the step signal input end r (t) of described input signal collection terminal Ui, one measuring-signal output terminal Uo, one operational amplifier U1, resistance R 0-R3, capacitor C 1, a C2 and a phase inverter I, described input signal collection terminal Ui, step signal input end r (t), measuring-signal output terminal Uo connects a binding post 12 respectively, described input signal collection terminal Ui links to each other with described NI ELVIS experiment porch 2, described resistance R 0 is connected between the inverting input of described step signal input end r (t) and operational amplifier U1, one end of described resistance R 1 connects the inverting input of described operational amplifier U1, one end of described resistance R 2 connects the output terminal of described operational amplifier U1, described resistance R 0, R1, the two ends of R2 and capacitor C 1 respectively connect a binding post 12, one end of described capacitor C 2 connects a binding post 12, described resistance R 3 is connected between the other end and ground of described capacitor C 2, the positive input end grounding of described operational amplifier U1, the input end of described phase inverter I connects a binding post 12, and the output terminal of described phase inverter I is as described measuring-signal output terminal Uo.Described capacitor C 2 has a fixing appearance value, be 1 μ F, described resistance R 3 has a fixed resistance value, be 10K Ω, can be according to the experiment situation, select resistance in the described independent components and parts be the resistance of 10K Ω, 100K Ω or 200K Ω as described resistance R 0-R2, also can select appearance value in the described independent components and parts be the electric capacity of 1 μ F, 2 μ F as described capacitor C 1, described independent components and parts are connected in the described mimic channel by its corresponding binding post 12.
When observing the time domain response of proportional component, the other end of described resistance R 1 is connected to the output terminal of operational amplifier U1 by the binding post 12 of correspondence, the input end of described phase inverter I links to each other with the output terminal of operational amplifier U1, constitute circuit as shown in Figure 5, at this moment, transport function between described input signal collection terminal Ui and the measuring-signal output terminal Uo is Uo (S)/Ui (S)=K, and step response functions is: Uo (t)=K, wherein K=R1/R0.
Described signal input part 16 is linked to each other with described measuring-signal output terminal Uo, described step signal output terminal 15 links to each other with described step signal input end r (t), and the amplitude of regulating step signal by described step signal adjustable side 14 is 1V, set at described signal imitation operation interface and to enable passage, triggering mode, just can move input after the signals collecting parameters such as sampling rate to described automation-control experiment module 1, the emulation of output signal (being described input signal collection terminal Ui and measuring-signal output terminal Uo), when the resistance of described resistance R 1 is 100K Ω, when the resistance of resistance R 0 is 200K Ω, the shown waveform response curve of described computing machine 3 as shown in Figure 6, when resistance R 1 became 200K Ω, the shown waveform response curve of described computing machine 3 as shown in Figure 7.
Please continue with reference to figure 8 to Figure 10, when observing the time domain response of integral element, described capacitor C 1 is connected between the inverting input and output terminal of described operational amplifier U1, the input end of described phase inverter I links to each other with the output terminal of operational amplifier U1, constitute circuit as shown in Figure 8, at this moment, transport function between described input signal collection terminal Ui and the measuring-signal output terminal Uo is Uo (S)/Ui (S)=1/TS, the step response functions of described mimic channel is: Uo (t)=t/T, wherein T=R0*C1.
When the appearance value of described capacitor C 1 is 1 μ F, when the resistance of resistance R 0 is 200KK Ω, the shown waveform response curve of described computing machine 3 as shown in Figure 9, when the appearance value of described capacitor C 1 became 2 μ F, the shown waveform response curve of described computing machine 3 was as shown in figure 10.
Please continue with reference to figures 11 to Figure 13, when observing the time domain response of proportional integral link, described resistance R 1 and capacitor C 1 are connected in series between the inverting input and output terminal of described operational amplifier U1, the input end of described phase inverter I links to each other with the output terminal of operational amplifier U1, constitute circuit as shown in figure 11, at this moment, transport function between described input signal collection terminal Ui and the measuring-signal output terminal Uo is Uo (S)/Ui (S)=K+1/TS, the step response functions of described mimic channel is: Uo (t)=K+t/T, K=R1/R0 wherein, T=R0*C1.
When the resistance of described resistance R 1, R0 is 200K Ω, when the appearance value of described capacitor C 1 is 1 μ F, the shown waveform response curve of described computing machine 3 as shown in figure 12, when the resistance of described resistance R 1 becomes 200K Ω, when the appearance value of described capacitor C became 2 μ F, the shown waveform response curve of described computing machine 3 as shown in figure 13.
Please continue referring to figs. 14 to 16, when observing the time domain response of inertial element, described resistance R 1 and capacitor C 1 are connected in parallel between the inverting input and output terminal of described operational amplifier U1, the input end of described phase inverter I links to each other with the output terminal of operational amplifier U1, constitute circuit as shown in figure 14, at this moment, transport function between described input signal collection terminal Ui and the measuring-signal output terminal Uo is Uo (S)/Ui (S)=K/ (TS+1), and the step response functions of described mimic channel is: Uo (t)=K* (1-e
-t/T), K=R1/R0 wherein, T=R0*C1.
When the resistance of described resistance R 1 is 200K Ω, when the appearance value of described capacitor C 1 is 1 μ F, the shown waveform response curve of described computing machine 3 as shown in figure 15, when the appearance value of described capacitor C 1 became 2 μ F, the shown waveform response curve of described computing machine 3 was as shown in figure 16.
Please continue with reference to Figure 17 to Figure 19, when observing the time domain response of proportion differential link, described resistance R 1 and resistance R 2 are connected in series between the inverting input of described operational amplifier U1 and the output terminal, the binding post of described capacitor C 2 one ends is connected to the connected node between resistance R 1 and the resistance R 2, the input end of described phase inverter I links to each other with the output terminal of operational amplifier U1, constitute circuit as shown in figure 17, at this moment, transport function between described input signal collection terminal Ui and the measuring-signal output terminal Uo is Uo (S)/Ui (S)=K* (TS+1), the step response functions of described mimic channel is: Uo (t)=K*T* δ (t)+K, wherein, K=(R1+R2)/R0, T=R1*R2*C2/ (R1+R2), δ (t) is a unit impulse function.
When the resistance of getting described resistance R 0, R2 is respectively 100K Ω, the resistance of resistance R 1 is respectively 100K Ω, the shown waveform response curve of described computing machine 3 as shown in figure 18, when the resistance with described resistance R 1 became 200K Ω, the shown waveform response curve of described computing machine 3 as shown in figure 19.
Please continue referring to figures 20 through Figure 22, when observing the time domain response of proportion integration differentiation link, resistance R 1, capacitor C 1 and resistance R 2 successively are connected in series between the inverting input of described operational amplifier U1 and the output terminal, the binding post of described capacitor C 2 one ends is connected to the connected node between capacitor C 1 and the resistance R 2, the input end of described phase inverter I links to each other with the output terminal of operational amplifier U1, constitute circuit as shown in figure 20, at this moment, the transport function between described input signal collection terminal Ui and the measuring-signal output terminal Uo is Uo (S)/Ui (S)=K
P+ 1/ (T
i* S)+T
d* S, the step response functions of described mimic channel is: Uo (t)=T
d* δ (t)+K
P+ t/T
i, wherein, K
P=R1/R0, T
i=R0*C1, T
d=R1*R2*C2/R0, δ (t) is a unit impulse function.
When the resistance of getting described resistance R 0, R1 is 100K Ω, the resistance of described resistance R 2 is 10K, when the appearance value of described capacitor C 1 is 1 μ F, the shown waveform response curve of described computing machine 3 as shown in figure 21, when the resistance with described resistance R 1 became 200K Ω, the shown waveform response curve of described computing machine 3 as shown in figure 22.
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 experiment porch, 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 (5)
1. automation-control experiment module, it is characterized in that, described automation-control experiment module comprises a mimic channel based on each typical link time domain response experiment content, 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: described automation-control experiment module also comprises a signal generator output terminal.
3. automation-control experiment module as claimed in claim 1, it is characterized in that: also be integrated with a plurality of independent components and parts in the described automation-control experiment module, each described independent components and parts two ends is connected with binding post, and the one or more binding posts by correspondence in the described independent components and parts are connected in described mimic channel.
4. automation-control experiment module as claimed in claim 3, it is characterized in that: described mimic channel comprises that one receives the step signal input end of step signal, one connects the input signal collection terminal of described step signal input end, one is used to connect the measuring-signal output terminal of the signal input part of described automation-control experiment module, one operational amplifier, first to fourth resistance, first, second electric capacity and a phase inverter, described input signal collection terminal connects described experiment porch, described input signal collection terminal, the step signal input end, the measuring-signal output terminal connects a binding post respectively, described first resistance is connected between the inverting input of described step signal input end and operational amplifier, one end of described second resistance connects the inverting input of described operational amplifier, one end of described the 3rd resistance connects the output terminal of described operational amplifier, the two ends of described first to the 3rd resistance and first electric capacity respectively connect a binding post, one end of described second electric capacity connects a binding post, described the 4th resistance is connected between the other end and ground of described second electric capacity, the input end of described phase inverter connects a binding post, and the output terminal of described phase inverter is as described measuring-signal output terminal.
5. automation-control experiment module as claimed in claim 4, it is characterized in that: described second electric capacity has a fixing appearance value, described the 3rd resistance has a fixed resistance value, and described first to the 3rd resistance and first electric capacity are respectively in the described independent components and parts.
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| CN2010202933458U CN201853399U (en) | 2010-08-16 | 2010-08-16 | Automatic-control principle experiment module |
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| CN2010202933458U CN201853399U (en) | 2010-08-16 | 2010-08-16 | Automatic-control principle experiment module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731066A (en) * | 2017-09-27 | 2018-02-23 | 昆明理工大学 | A kind of fundamental arithmetic circuit brassboard and its application method |
| CN109658769A (en) * | 2019-01-21 | 2019-04-19 | 同济大学 | A kind of low order LTI continuous system characteristic comprehensive experiment device |
-
2010
- 2010-08-16 CN CN2010202933458U patent/CN201853399U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731066A (en) * | 2017-09-27 | 2018-02-23 | 昆明理工大学 | A kind of fundamental arithmetic circuit brassboard and its application method |
| CN109658769A (en) * | 2019-01-21 | 2019-04-19 | 同济大学 | A kind of low order LTI continuous system characteristic comprehensive experiment device |
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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: 20150804 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150804 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. |
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| CX01 | Expiry of patent term |
Granted publication date: 20110601 |
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| CX01 | Expiry of patent term |