CN202422536U - Electronic circuit experiment box for circuit test - Google Patents
Electronic circuit experiment box for circuit test Download PDFInfo
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- CN202422536U CN202422536U CN2012200477962U CN201220047796U CN202422536U CN 202422536 U CN202422536 U CN 202422536U CN 2012200477962 U CN2012200477962 U CN 2012200477962U CN 201220047796 U CN201220047796 U CN 201220047796U CN 202422536 U CN202422536 U CN 202422536U
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Abstract
The utility model discloses an electronic circuit experiment box for a circuit test. An experiment circuit, a signal acquisition module, a display unit and a control module are arranged on an experiment box body, wherein the experiment circuit is used as a test object, and a plurality of test points are arranged on the experiment circuit; the signal acquisition module is connected with the experiment circuit, and is used for acquiring and digitalizing test signals of the test points on the experiment circuit, and outputting digital signals; the display unit is connected with the signal acquisition module, and is used for receiving the digital signals from the signal acquisition module, and displaying oscillograms of the digital signals; and the control module is used for acquiring an externally input control parameter, and outputting the control parameter to the signal acquisition module. The electronic circuit experiment box for the circuit test has the advantages of integrating a measurement function and a display function, improving the intuitiveness of a circuit experiment effect, and the like.
Description
Technical field
The utility model relates to a kind of electronic circuit experiment case that is used for circuit test.
Background technology
Electronic circuit experiment is a practicality course; Its main task is through the experiment course; Make the student deepen understanding, the training of the technical ability that experimentizes, the knowwhy of correctly being learned with the laboratory facilities checking to course contents such as electronic circuit technology bases; Consolidate and deepen relevant knowwhy, cultivate the ability that the student uses the basic theories analysis and handles practical problems.The electronic circuit experiment case is traditional instruments used for education, along with development of electronic technology, and the particularly widespread use of digital circuit, the content of Experiment of Electrical Circuits is also in development.Traditional Experiment of Electrical Circuits case displaying experiment effect need be realized by various independent test instruments, instrument.In traditional Experiment of Electrical Circuits case; Before experiment, need assemble and wiring various instrument and meters; Its major defect following points: 1) be unfamiliar with owing to the student uses testing tool, make energy be wasted in the combination of testing tool, wiring and the operation, experiment effect is had a greatly reduced quality; 2) parameter and the use test instrument test observing effect of change experimental circuit are two independent step, have influenced the intuitive of experiment effect; 3) the experimental circuit function increases, and test point is many, and particularly digital circuit does not often have suitable testing tool can measure these test points simultaneously, makes that the displaying of circuit working principle is limited.
For testing conveniently; Experimental provision that signal source, general-purpose gauge outfit and Experiment of Electrical Circuits case are combined has appearred in the prior art; Its advantage is to have made things convenient for Experiment of Electrical Circuits, avoid the student in the use of instrument, to waste the too much time, but this experimental provision does not possess waveform Presentation Function and measurement function; The also change of inconvenient experiment parameter, and test function is single.
The utility model content
The utility model is the weak point that exists in the above-mentioned prior art for avoiding, and a kind of electronic circuit experiment case that is used for circuit test is provided, and to gather waveform Presentation Function and measurement function in one, improves the intuitive of Experiment of Electrical Circuits effect.
The utility model adopts following technical scheme for the technical solution problem.
The electronic circuit experiment case that is used for circuit test, its design feature be, comprises the experiment casing, and said experiment casing is provided with:
Experimental circuit is used for as tested object, and experimental circuit is provided with a plurality of test points;
Signal acquisition module is connected with said experimental circuit, is used to gather on the experimental circuit test signal of the test point digitized of going forward side by side, and exports digitized signal simultaneously;
Control module is used to obtain the controlled variable of outside input and controlled variable is exported to signal acquisition module.
The design feature of the electronic circuit experiment case that is used for circuit test of the utility model also is:
Mode through RS232 bus, I2C bus or radio communication between said control module and the said signal acquisition module is carried out exchanges data; Be connected with input block on the said control module, said input block is used for the external control instruction is inputed to control module and sends signal acquisition module to.
The described electronic circuit experiment case that is used for circuit test also comprises display unit, is connected with said signal acquisition module, is used to receive the digitized signal of signal acquisition module output, and the oscillogram of display digit signal; Said display unit comprises and is integrated in first display device on the said experiment casing and/or is external in second display device on the said experiment casing.
Be connected with computing machine on the said signal acquisition module.
Compared with present technology, the utility model beneficial effect is embodied in:
The experimental box of the utility model; Experimental circuit, signal acquisition module, display unit and control module concentrated on test on the casing, can in advance circuit be connected, the experimenter can directly be used for circuit test; Avoid complicated wiring process, simplified experimental procedure.Through display unit shows signal waveform intuitively, the change of experimental circuit element and structural parameters can embody on signal waveform at once simultaneously, improves the intuitive of Experiment of Electrical Circuits.Can change the experimental circuit test point of test easily through control module, can browse, contrast each test point signal waveform through display unit and improve experiment effect.
The electronic circuit experiment case that is used for circuit test of the utility model has set waveform Presentation Function and the measurement function advantages such as intuitive in one, raising Experiment of Electrical Circuits effect.
Description of drawings
Fig. 1 is the structured flowchart of the electronic circuit experiment case of the utility model.
The structural representation of first embodiment of the electronic circuit experiment case of Fig. 2 the utility model.
The structural representation of second embodiment of the electronic circuit experiment case of Fig. 3 the utility model.
The structural representation of the 3rd embodiment of the electronic circuit experiment case of Fig. 4 the utility model.
The structural representation of the 4th embodiment of the electronic circuit experiment case of Fig. 5 the utility model.
The structural representation of the 5th embodiment of the electronic circuit experiment case of Fig. 6 the utility model.
The structural representation of the 6th embodiment of the electronic circuit experiment case of Fig. 7 the utility model.
Accompanying drawing 2 to accompanying drawing 7 labels: 1 experimental circuit, 2 signal acquisition module, 21 signal input interfaces, 3 first display device, 4 control modules, 41 control panels, 42 operating keys, 5 computing machines, 6 experiment casings, 61 case lids, 62 casing bodies, 7 second display device.
Below pass through embodiment, and combine accompanying drawing that the utility model is described further.
Embodiment
Referring to accompanying drawing 1, be used for the electronic circuit experiment case of circuit test, comprise experiment casing 6, said experiment casing 6 is provided with:
Control module 4 is used to obtain the controlled variable of outside input and controlled variable is exported to signal acquisition module 2.Signal acquisition module is gathered the test signal of a plurality of test points on the experimental circuit, and passes to external or built-in display unit after test signal handled, and is carried out the demonstration of test signal waveform by display unit.Control module can be through wire communication or radio communication mode and signal acquisition module between swap data; Can be connected with signal acquisition module to realize the wire communication function through RS232 bus, I2C bus; Perhaps the mode of the radio communication through infrared or radio frequency realizes communication, realizes the control of signals collecting function through control module.
Test point on the experimental circuit can realize with probe, lead, connector, probe, the rubber-like contact that is flexible coupling to the signal connected mode between the signal input channel of signal acquisition module.The test point number of experimental circuit can greater than, be equal to or less than the number of the signal input channel of signal acquisition module.During the number of the signal that the number of the signal input channel of signal acquisition module can be gathered greater than signal acquisition module simultaneously, can select the part input channel to gather, also can gather all input channels in order automatically through control module.The control function of control module have signal acquisition module whether to certain signal gather, signals collecting and other control function that needs of startup and stop signal acquisition module.
The experimental box of the utility model; Experimental circuit, signal acquisition module, display unit and control module concentrated on test on the casing, can in advance circuit be connected, the experimenter can directly be used for circuit test; Avoid complicated wiring process, simplified experimental procedure.Also can on signal acquisition module, reserve display interface simultaneously, through the external display unit of display interface; Through display unit shows signal waveform intuitively, the change of experimental circuit element and structural parameters can embody on signal waveform at once, improves the intuitive of Experiment of Electrical Circuits.Can change the experimental circuit test point of test easily through control module, can browse, contrast each test point signal waveform through display unit and improve experiment effect.
Mode through RS232 bus, I2C bus or radio communication between said control module 4 and the said signal acquisition module 2 is carried out exchanges data; Be connected with input block on the said control module 4, said input block is used for the external control instruction is inputed to control module 4 and sends signal acquisition module 2 to.Input block can be selected keyboard or knob controlling switch, can realize through a plurality of operating keys or rotary switch are set on control module.The experimenter inputs to control module through input block with steering order, by control module steering order is passed to signal acquisition module, and the mode of signals collecting is controlled, and improves the operability of experimental box.Signal acquisition module has optional signal parameter measurement capability, and the measurement result of generation shows at display unit, also can be delivered on the computing machine to show.Measurement parameter refers to parameter that other indirect calculation of voltage, cycle, frequency spectrum and reaction circuit index obtains such as power, enlargement factor, bandwidth etc.
The described electronic circuit experiment case that is used for circuit test also comprises display unit, is connected with said signal acquisition module 2, is used to receive the digitized signal of signal acquisition module 2 outputs, and the oscillogram of display digit signal; Said display unit comprises and is integrated in first display device 3 on the said experiment casing 6 and/or is external in second display device 7 on the said experiment casing 6.Signal acquisition module is connected with the first integrated display device through TTL interface or LVDS interface; Also can be connected with the second outside display device, thereby can carry out the demonstration of signal waveform through two display device through the VGA interface or the HDMI interface of standard.
Be connected with computing machine 5 on the said signal acquisition module 2.Through RS232/485 serial ports, USB mouth, 1394 interfaces, Ethernet interface or 802.11 wireless communication protocols; Signal acquisition module is connected with computing machine; And then can the related data of experiment be passed to computing machine and store and show; And experimental data is carried out analyzing and processing through the software systems on the computing machine, can obtain effectively experiment effect more directly perceived.Simultaneously, can connect LAN or Internet, the analysis processing result of experimental data and software is shared on the network through computing machine.
As shown in Figure 2, experimental circuit 1, signal acquisition module 2, first display device 3, control module 4 all are installed in the experiment casing 6, and experiment casing 6 is a monolithic construction.Control module 4 is provided with a plurality of operating keys.Wherein signal acquisition module 2 is arranged on box house, be arranged at other several modules below, whole apparatus structure is compact.A part of test point signal on the experimental circuit 1 is directly connected to the signal acquisition module 2 of its below.Signal acquisition module 2 is provided with signal input interface 21.Signal input interface 21 is one of input signal channels of signal acquisition module 2, is used for connecting probe, can survey any one test point on the experimental circuit 1.
The experiment casing 6 of present embodiment can also select to provide communications network interface, is used for being connected to computing machine, realizes the expansion of display function.
As shown in Figure 3, the structure of experiment casing 6 is identical with the structure of embodiment 1, and the difference part is also to be circumscribed with second display device 7.Second display device 7 is connected with signal acquisition module 2 through signal wire, and second display device 7 can be CRT monitor or LCD display.
As shown in Figure 4, experiment casing 6 comprises case lid 61 and casing body 62.Experimental circuit 1 is installed in the casing body 62 with signal acquisition module 2, and experimental circuit 1 is arranged on the signal acquisition module 2.Signal acquisition module 2 is provided with signal input interface 21.Signal input interface 21 is one of input signal channels of signal acquisition module 2, is used for connecting probe, can survey any one test point on the experimental circuit 1.First display device 3 is arranged on the case lid 61 with control module 4.Whole apparatus structure has made full use of case lid and has placed first display device and control module, has reserved bigger area to experimental circuit.
Embodiment 4
As shown in Figure 5, experiment casing 6 comprises case lid 61 and casing body 62.Control module 4 comprises control panel 41 and operating key 42.First display device 3 is arranged on the case lid 61 with control panel 41.Experimental circuit 1, operating key 42 and signal acquisition module 2 are installed in the casing body 62, and experimental circuit 1, operating key 42 are arranged on the signal acquisition module 2.
Embodiment 5
As shown in Figure 6, on the experiment casing 6 display unit is not set, experimental circuit 1, signal acquisition module 2, control module 4 all are installed in the experiment casing 6, and display unit adopts external mode.Realize the demonstration of signal waveform through the second external display device 7.
Embodiment 6
As shown in Figure 7, on the experiment casing 6 display unit is not set, experimental circuit 1, signal acquisition module 2 all are installed in the experiment casing 6, and display unit adopts external mode.Realize the demonstration of signal waveform through the second external display device 7.In addition, control module 4 adopts wireless control mode, and the mode through radio communication between control module 4 and the signal acquisition module 2 communicates, and control module 4 adopts infrared or radiofrequency signal is come and signal acquisition module 2 transfer control signal.
Claims (4)
1. be used for the electronic circuit experiment case of circuit test, it is characterized in that, comprise experiment casing (6), said experiment casing (6) is provided with:
Experimental circuit (1) is used for as tested object, and experimental circuit (1) is provided with a plurality of test points;
Signal acquisition module (2) is connected with said experimental circuit (1), is used to gather test signal that experimental circuit (1) the goes up test point digitized of going forward side by side, and exports digitized signal simultaneously;
Control module (4) is used to obtain the controlled variable of outside input and controlled variable is exported to signal acquisition module (2).
2. the electronic circuit experiment case that is used for circuit test according to claim 1 is characterized in that, carries out exchanges data through the mode of RS232 bus, I2C bus or radio communication between said control module (4) and the said signal acquisition module (2); Said control module is connected with input block on (4), and said input block is used for the external control instruction is inputed to control module (4) and sends signal acquisition module (2) to.
3. the electronic circuit experiment case that is used for circuit test according to claim 1; It is characterized in that, also comprise display unit, be connected with said signal acquisition module (2); Be used to receive the digitized signal of signal acquisition module (2) output, and the oscillogram of display digit signal; Said display unit comprises first display device (3) that is integrated on the said experiment casing (6) and/or is external in second display device (7) on the said experiment casing (6).
4. the electronic circuit experiment case that is used for circuit test according to claim 1 is characterized in that, is connected with computing machine (5) on the said signal acquisition module (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200477962U CN202422536U (en) | 2012-02-14 | 2012-02-14 | Electronic circuit experiment box for circuit test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200477962U CN202422536U (en) | 2012-02-14 | 2012-02-14 | Electronic circuit experiment box for circuit test |
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| Publication Number | Publication Date |
|---|---|
| CN202422536U true CN202422536U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200477962U Expired - Fee Related CN202422536U (en) | 2012-02-14 | 2012-02-14 | Electronic circuit experiment box for circuit test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202422536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021238A (en) * | 2012-12-07 | 2013-04-03 | 山东省远大网络多媒体股份有限公司 | Digital static tester |
| CN104952340A (en) * | 2015-07-02 | 2015-09-30 | 山东星科智能科技股份有限公司 | Automobile circuit connection check experiment box |
-
2012
- 2012-02-14 CN CN2012200477962U patent/CN202422536U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021238A (en) * | 2012-12-07 | 2013-04-03 | 山东省远大网络多媒体股份有限公司 | Digital static tester |
| CN104952340A (en) * | 2015-07-02 | 2015-09-30 | 山东星科智能科技股份有限公司 | Automobile circuit connection check experiment box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20150214 |
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| EXPY | Termination of patent right or utility model |