CN212111750U - Volt-ampere characteristic test system - Google Patents
Volt-ampere characteristic test system Download PDFInfo
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- CN212111750U CN212111750U CN201922392017.7U CN201922392017U CN212111750U CN 212111750 U CN212111750 U CN 212111750U CN 201922392017 U CN201922392017 U CN 201922392017U CN 212111750 U CN212111750 U CN 212111750U
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Abstract
The utility model discloses a volt-ampere characteristic test system, including host computer, power, control panel, contactor, voltmeter, voltage sensor, ampere meter, current sensor and test piece. The upper computer is connected with printer, power and control panel respectively, and the power passes through the contactor to be connected with the test piece, connects with voltmeter and voltage sensor on the power output bus, and it has ampere meter and current sensor to establish ties on the test piece. The upper computer possesses the display and prints and RS485 function. The power supply provides electric energy for the whole test system, has a continuously adjustable function and a communication function, and can be controlled by an upper computer. The control panel collects the current and the total voltage of each group of test pieces and sends the current and the total voltage to the upper computer for displaying and storing. The utility model discloses can realize that multiunit test piece carries out volt-ampere characteristic test simultaneously to can possess automatic and manual test function, improve efficiency of software testing when guaranteeing the measuring accuracy.
Description
Technical Field
The utility model belongs to the technical field of volt-ampere characteristic test, especially, relate to a volt-ampere characteristic test system.
Background
The volt-ampere characteristic test of the test piece can reflect the change of the performance of the test piece along with the change of voltage and current, can judge whether the test piece is qualified or not, or limit the use condition of the test piece, for example, the volt-ampere characteristic test of the transformer core is used for checking the quality of the core and whether the winding has a short circuit problem or not. At present, most of magnetic core volt-ampere characteristic curve tests adopt a manual test method, a voltage regulator is used for testing, voltage current data are recorded after manual voltage regulation, data processing is uniformly carried out after a group of tests are finished, the efficiency is low, the test precision is not high, and the existing volt-ampere characteristic test system is not universal and causes the test cost to be increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a volt-ampere characteristic test system, overcome among the prior art 1: at present, most of magnetic core volt-ampere characteristic curve tests adopt a manual test method, a voltage regulator is used for testing, voltage and current data are recorded after manual voltage regulation, and the test precision is not high; 2: the manual testing method is adopted for testing one by one, and after a group of tests are finished, data processing is uniformly carried out, so that the efficiency is low; 3: the existing volt-ampere characteristic test system is not universal, so that the test cost is increased, and meanwhile, the problems that a plurality of test pieces can be automatically tested at one time and the like are not disclosed in any patent.
In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a volt-ampere characteristic test system, includes host computer, printer, power, control panel, contactor, voltmeter, ampere meter, voltage sensor, current sensor and test piece, and wherein the host computer is connected with printer, power and control panel respectively, and wherein the power passes through the contactor to be connected with the test piece, and the last voltmeter and voltage sensor that has connect of power output bus has established ties on the test piece has ampere meter and current sensor, the contactor is connected to the control panel output, and wherein current sensor is connected to the control panel input, and wherein voltage sensor is still connected to the control panel input.
Preferably, the upper computer can control the start and stop of the whole test system, and can manually set the voltage and current required by the test, or automatically set according to the set stepping voltage and current values, can display the voltage and current of the test piece, process the voltage and current data and make a relevant table.
Preferably, the host computer possesses the RS485 function simultaneously and can communicate with power and control panel, the printer can be driven simultaneously to the host computer, prints the form data of making.
Preferably, the power supply provides electric energy for the whole test system, has the continuous and adjustable function of RS485 communication, and can be controlled by an upper computer.
Preferably, the output of the contactor is connected with a plurality of groups of ampere meters, current sensors and test pieces in parallel, and each group of ampere meters, current sensors and test pieces are connected in series.
Preferably, the control panel comprises controller, a plurality of AD acquisition circuits, RS485 circuit and switching value output circuit, switching value output circuit control contactor switch-on and disconnection, and wherein a plurality of AD acquisition circuits gather the voltage and the electric current of a plurality of test pieces respectively, and the control panel carries out the communication through RS485 circuit wherein and host computer.
Compared with the prior art, the utility model has the advantages of:
(1) the utility model provides a volt-ampere characteristic test system can carry out the high accuracy test to multiunit test piece simultaneously, and test system possesses manual test mode and automatic test mode, and the automatic test mode can be sent for the voltage current value that the power was set for according to the step length of setting for, and test system is equipped with the control panel simultaneously, possesses data processing and save function, and test system handles test data and makes corresponding form and print after the test is accomplished, has improved efficiency of software testing and precision to a great extent;
(2) the utility model provides a volt-ampere characteristic test system to the problems such as the past volt-ampere characteristic test system is not general, the efficiency of software testing is low, the measuring accuracy is not high, the test system can be suitable for multiple test pieces, can test a plurality of test pieces simultaneously, is equipped with high-accuracy power and high-accuracy control panel, provides reliable guarantee for the measuring accuracy of the whole test system, can accomplish the volt-ampere characteristic test work of test piece with high accuracy and high efficiency;
(3) the utility model discloses reduced the test cost, host computer and control panel and power all adopt RS485 communication mode simultaneously, can make things convenient for the system extension, have strengthened the capacity of system.
Drawings
Fig. 1 is a schematic structural diagram of a voltammetry testing system of the present invention;
fig. 2 is a schematic diagram of a control board structure of a volt-ampere characteristic testing system of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided in connection with the following embodiments:
it should be noted that the structures, ratios, sizes, etc. illustrated in the present specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of the people skilled in the art, and are not used to limit the limit conditions that the present invention can be implemented, and any modifications of the structures, changes of the ratio relationships or adjustments of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the functions and the achievable purposes of the present invention.
Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
As shown in fig. 1, the utility model discloses a volt-ampere characteristic test system, including host computer, printer, power, control panel, contactor, voltmeter, ampere meter, voltage sensor, current sensor and test piece, wherein the host computer is connected with printer, power and control panel respectively, and wherein the power passes through the contactor to be connected with the test piece, and the last voltmeter and the voltage sensor that have connect with of power output bus, it has ampere meter and current sensor to establish ties on the test piece, the contactor is connected to the control panel output, and wherein current sensor is connected to the control panel input, and wherein voltage sensor is still connected to the control panel input.
As shown in fig. 1, preferably, the upper computer may control the start and stop of the whole test system, may manually set the voltage and current required for the test, or may automatically set according to the set step voltage and current values, may display the voltage and current of the test piece, process the voltage and current data, and may make a relevant table.
As shown in fig. 1, preferably, the upper computer has an RS485 function and can communicate with the power supply and the control panel, and the upper computer can drive the printer to print the prepared form data.
As shown in fig. 1, preferably, the power supply provides power for the whole test system, and the power supply is continuously adjustable and has an RS485 communication function, and can be controlled by an upper computer.
As shown in fig. 1, preferably, the output of the contactor is connected in parallel with a plurality of sets of ammeters, current sensors and test pieces, and each set of ammeters, current sensors and test pieces are connected in series.
As shown in fig. 2, preferably, the control board is composed of a controller, a plurality of AD acquisition circuits, an RS485 circuit, and a switching value output circuit, the switching value output circuit controls the contactor to be turned on and off, wherein the plurality of AD acquisition circuits respectively acquire the voltage and the current of the plurality of test pieces, and the control board communicates with the upper computer through the RS485 circuit therein.
The utility model discloses a theory of operation and working process as follows:
referring to the attached drawing 1, the utility model provides a volt-ampere characteristic test system, including host computer, power, control panel, contactor, voltmeter, voltage sensor, ampere meter, current sensor, printer, the host computer is connected with printer, power and control panel, the power passes through the contactor to be connected with the test piece, connect voltmeter and voltage sensor on the power output bus, it has ampere meter and current sensor to establish ties on the test piece; after the upper computer is started, an automatic test mode is selected, the upper computer controls the contactor to be closed through the control panel, meanwhile, the upper computer sends a set voltage and current value to the power supply according to a set step length, the upper computer communicates with the power supply through RS485, meanwhile, the power supply can also upload power supply data to the upper computer, the control panel collects the total voltage and the current of each test piece and sends the total voltage and the current to the upper computer through RS485, and the upper computer receives the voltage and the current collected by the control panel and then displays and stores the voltage and the current; if the manual mode is selected, the voltage value and the current value can be set as required to carry out real-time online control on the power supply, and the control panel collects the voltage value and the current value to display, process and store; if when not using the host computer, power and test piece and voltmeter, ampere meter also can use, after the voltage power button on the manual regulation power, the electric current on record voltmeter and every test piece, after the test is accomplished, manual to the output handle.
Installing a plurality of test pieces in a plurality of test piece positions, starting an upper computer, selecting an automatic test mode, controlling the contactor to be closed by the upper computer through a control panel, simultaneously sending the upper computer to a voltage current value set by a power supply according to a set step length, communicating the upper computer with the power supply by adopting RS485, sending the detected voltage value to the control panel by a voltage sensor, sending the detected current value of each test piece to the control panel by a current sensor, uploading the collected total voltage value and the current value of each test piece to the upper computer by the control panel through the RS485, displaying and storing the voltage current collected by the control panel by the upper computer after receiving the voltage current collected by the control panel, calculating to obtain a resistance value, sending the total voltage current value to a plurality of set voltage current values of the power supply by the upper computer according to the set step length, finally calculating a plurality of resistance values of the test pieces, and obtaining a change curve of, and obtaining the volt-ampere characteristics of a plurality of test pieces.
As shown in fig. 2, the control panel is mainly by the controller, a plurality of AD acquisition circuit, RS485 circuit and switching value output circuit constitute, wherein a plurality of AD acquisition circuit include AD acquisition circuit 1, AD acquisition circuit 2, … …, AD acquisition circuit 10 etc., wherein AD acquisition circuit is connected with the current sensor one-to-one respectively, after the start command of host computer was received to the controller, the closed contactor of switching value output circuit is controlled, start multichannel AD acquisition circuit simultaneously and gather the electric current and the total voltage of each test piece, pass through RS485 communication mode and pass to the host computer, control panel and power all adopt RS485 communication mode can make things convenient for the system expansion, the capacity of system has been strengthened.
The utility model provides a volt-ampere characteristic test system can carry out the high accuracy test to multiunit test piece simultaneously, test system possesses manual test mode and automatic test mode, the automatic test mode can be sent the magnitude of voltage current for the power setting according to the step length of setting for, test system is equipped with the control panel simultaneously, possess data processing and save function, test system will test data processing and make corresponding form and print after accomplishing, to a great extent has improved efficiency of software testing and precision.
The utility model discloses it is not general to volt-ampere characteristic test system in the past, efficiency of software testing is low, the not high scheduling problem of measuring accuracy has provided a volt-ampere characteristic test system, and this test system can be suitable for multiple test piece, can test a plurality of test pieces simultaneously, is equipped with power and the control panel of high accuracy, provides reliable guarantee to whole test system's measuring accuracy, can accomplish the volt-ampere characteristic test work of test piece by high accuracy, efficient.
The utility model discloses reduced the test cost, host computer and control panel and power all adopt RS485 communication mode simultaneously, can make things convenient for the system extension, have strengthened the capacity of system.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof. The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.
Claims (6)
1. A volt-ampere characteristic test system is characterized in that: including host computer, printer, power, control panel, contactor, voltmeter, voltage sensor, ampere meter, current sensor and test piece, wherein the host computer is connected with printer, power and control panel respectively, and wherein the power passes through the contactor and is connected with the test piece, is connected with voltmeter and voltage sensor on the power output bus, and it has ampere meter and current sensor to establish ties on the test piece, the contactor is connected to the control panel output, and wherein current sensor is connected to the control panel input, and wherein voltage sensor is still connected to the control panel input.
2. A voltammetric characterization test system according to claim 1, wherein: the upper computer controls the starting and stopping of the whole test system, manually sets the voltage and current required by the test, or automatically sets according to the set stepping voltage and current values, displays the voltage and current of the test piece, processes the voltage and current data and makes the data into a relevant table.
3. A voltammetric characterization test system according to claim 1, wherein: the upper computer has the RS485 function and communicates with the power supply and the control panel, and simultaneously drives the printer to print the manufactured form data.
4. A voltammetric characterization test system according to claim 1, wherein: the power supply provides electric energy for the whole test system, has the continuous and adjustable function of RS485 communication and is controlled by the upper computer.
5. A voltammetric characterization test system according to claim 1, wherein: the output of the contactor is connected with a plurality of groups of ampere meters, current sensors and test pieces in parallel, wherein each group of ampere meters, current sensors and test pieces are connected in series.
6. A voltammetric characterization test system according to claim 1, wherein: the control panel comprises controller, a plurality of AD acquisition circuit, RS485 circuit and switching value output circuit, switching value output circuit control contactor switch-on and disconnection, wherein a plurality of AD acquisition circuit gather the voltage and the electric current of a plurality of test pieces respectively, and the control panel carries out the communication through RS485 circuit wherein and host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922392017.7U CN212111750U (en) | 2019-12-27 | 2019-12-27 | Volt-ampere characteristic test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922392017.7U CN212111750U (en) | 2019-12-27 | 2019-12-27 | Volt-ampere characteristic test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212111750U true CN212111750U (en) | 2020-12-08 |
Family
ID=73624603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922392017.7U Expired - Fee Related CN212111750U (en) | 2019-12-27 | 2019-12-27 | Volt-ampere characteristic test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212111750U (en) |
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2019
- 2019-12-27 CN CN201922392017.7U patent/CN212111750U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201208 Termination date: 20211227 |