CN211206736U - Battery noise testing device - Google Patents
Battery noise testing device Download PDFInfo
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- CN211206736U CN211206736U CN201921568620.XU CN201921568620U CN211206736U CN 211206736 U CN211206736 U CN 211206736U CN 201921568620 U CN201921568620 U CN 201921568620U CN 211206736 U CN211206736 U CN 211206736U
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Abstract
The utility model provides a battery noise testing arrangement, including low noise preamplifier module, programme-controlled gain amplifier module, programme-controlled filter module, collection card module, data processing module, the control unit module, isolation circuit module, low noise discharge circuit module, the beneficial effects of the utility model reside in that: the battery noise testing device has simple structure, good stability and high precision; mutual radiation interference among the functional modules is effectively reduced, and the accuracy of a test result is improved; the battery noise testing device detects the noise of the battery under different working modes so as to evaluate the performance of the battery and obtain the best working mode.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electronic test measures technical field, especially relates to a battery noise test device for testing battery low frequency noise.
[ background of the invention ]
With the development of new energy technology, the application of the battery is wider and more important, and the evaluation of the performance of the battery is more and more important, so that the reliability and the service life of the battery are evaluated through testing and analyzing the noise of the battery;
the traditional noise test system is expensive, the test procedure is complex, no special optimization and discharge circuit is made for the test of the battery, and the traditional noise test system is not suitable for the research and use of the battery.
[ Utility model ] content
The utility model aims to solve traditional noise test system and be expensive, the test procedure is complicated and do not do the not enough of special optimization and discharge circuit's problem and the neotype battery noise test device that provides for the test of battery.
The utility model discloses a realize through following technical scheme:
a battery noise testing device comprises a low-noise preamplifier module, a program-controlled gain amplifier module, a program-controlled filter module, an acquisition card module, a data processing module, a control unit module, an isolation circuit module and a low-noise discharge circuit module, wherein the low-noise preamplifier module is electrically connected with the positive terminal of a battery to be tested, the low-noise preamplifier module is electrically connected with the program-controlled gain amplifier module, the program-controlled gain amplifier module is electrically connected with the program-controlled filter module, the program-controlled filter module is electrically connected with the acquisition card module, the acquisition card module is in signal connection with the data processing module, the data processing module is in signal connection with the control unit module, the control unit module is in signal connection with the program-controlled gain amplifier module and the program-controlled filter module respectively through the isolation circuit module, the control unit module is in signal connection with the low-noise discharge circuit module through the isolation circuit module, one end of the low-noise discharge circuit module is electrically connected with the negative end of the battery to be tested, and the other end of the low-noise discharge circuit module is electrically connected with the positive end of the battery to be tested.
Further, the low noise preamplifier module: and acquiring a low-frequency noise signal generated in the battery to be detected, and amplifying the low-frequency noise signal by using a low-noise preamplifier module.
Further, the programmable gain amplifier module: further amplifying the low-frequency noise signal, and being capable of programming the gain of the amplifier and selecting a proper measuring range, thereby improving the testing precision.
Further, the programmable filter module: a plurality of filter bandwidths are set, and signals with one or more filter bandwidths are selected to be analyzed, so that the reliability of system test is improved.
Further, the acquisition card module: and converting the analog signal output by the program control filter module into a digital signal.
Further, the data processing module: and acquiring and analyzing the noise signal of the digital quantity, and evaluating the performance of the battery to be tested.
Further, the control unit module: and controlling the amplification factor of the programmable gain amplifier, the bandwidth of the programmable filter and the working mode of the low-noise discharge circuit module.
Further, the isolation circuit module: the circuits are isolated, and mutual influence is avoided.
Further, the low noise discharge circuit module: and setting a discharging mode of the battery to be tested, wherein the discharging mode of the battery to be tested can set the values of constant voltage/constant current discharging and voltage/current.
Further, the isolation circuit module is an optical coupler or an optical fiber.
The beneficial effects of the utility model reside in that:
(1) the battery noise testing device has simple structure, good stability and high precision;
(2) mutual radiation interference among the functional modules is effectively reduced, and the accuracy of a test result is improved;
(3) the battery noise testing device detects the noise of the battery under different working modes so as to evaluate the performance of the battery and obtain the best working mode.
[ description of the drawings ]
Fig. 1 is a schematic diagram of the battery noise testing device of the present invention;
reference numerals: 1. a low noise preamplifier module; 2. a program-controlled gain amplifier module; 3. a program-controlled filter module; 4. an acquisition card module; 5. a data processing module; 6. a control unit module; 7. an isolation circuit module; 8. a low noise discharge circuit module; 9. and (5) a battery to be tested.
[ detailed description ] embodiments
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in FIG. 1, a battery noise testing device comprises a low noise preamplifier module 1, a programmable gain amplifier module 2, a programmable filter module 3, an acquisition card module 4, a data processing module 5, a control unit module 6, an isolation circuit module 7, and a low noise discharge circuit module 8, wherein the low noise preamplifier module 1 is electrically connected with a positive terminal of a battery 9 to be tested, the low noise preamplifier module 1 is electrically connected with the programmable gain amplifier module 2, the programmable gain amplifier module 2 is electrically connected with the programmable filter module 3, the programmable filter module 3 is electrically connected with the acquisition card module 4, the acquisition card module 4 is in signal connection with the data processing module 5, the data processing module 5 is in signal connection with the control unit module 6, and the control unit module 6 is respectively in signal connection with the programmable gain amplifier module 2, the isolation circuit module 7, The programmable filter module 3 is in signal connection, the control unit module 6 is in signal connection with the low-noise discharge circuit module 8 through the isolation circuit module 7, one end of the low-noise discharge circuit module 8 is electrically connected with the negative end of the battery 9 to be tested, and the other end of the low-noise discharge circuit module 8 is electrically connected with the positive end of the battery 9 to be tested.
Preferably, the low noise preamplifier module 1: and acquiring a low-frequency noise signal generated inside the battery 9 to be detected, and amplifying the low-frequency noise signal by using the low-noise preamplifier module 1.
Preferably, the programmable gain amplifier module 2: further amplifying the low-frequency noise signal, and being capable of programming the gain of the amplifier and selecting a proper measuring range, thereby improving the testing precision.
Preferably, the programmable filter module 3: a plurality of filter bandwidths are set, and signals with one or more filter bandwidths are selected to be analyzed, so that the reliability of system test is improved.
Preferably, the acquisition card module 4: and converting the analog signal output by the programmable filter module 3 into a digital signal.
Preferably, the data processing module 5: and acquiring and analyzing the noise signal of the digital quantity, and evaluating the performance of the battery to be tested.
Preferably, the control unit module 6: the amplification factor of the programmable gain amplifier 2, the bandwidth of the programmable filter 3 and the working mode of the low-noise discharge circuit module 8 are controlled.
Preferably, the isolation circuit module 7: the circuits are isolated, and mutual influence is avoided.
Preferably, the low-noise discharge circuit module 8: the discharge mode of the battery 9 to be tested is set, and the discharge mode of the battery 9 to be tested can set the values of constant voltage/constant current discharge and voltage/current.
Preferably, the isolation circuit module 7 is optically coupled or fiber optic.
Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A battery noise testing device is characterized in that: the system comprises a low-noise preamplifier module, a program-controlled gain amplifier module, a program-controlled filter module, an acquisition card module, a data processing module, a control unit module, an isolation circuit module and a low-noise discharge circuit module, wherein the low-noise preamplifier module is electrically connected with the positive terminal of a battery to be tested, the low-noise preamplifier module is electrically connected with the program-controlled gain amplifier module, the program-controlled gain amplifier module is electrically connected with the program-controlled filter module, the program-controlled filter module is electrically connected with the acquisition card module, the acquisition card module is in signal connection with the data processing module, the data processing module is in signal connection with the control unit module, the control unit module is in signal connection with the program-controlled gain amplifier module and the program-controlled filter module respectively through the isolation circuit module, and the control unit module is in signal connection with the low-noise discharge circuit module through the isolation circuit module, one end of the low-noise discharge circuit module is electrically connected with the negative electrode end of the battery to be tested, and the other end of the low-noise discharge circuit module is electrically connected with the positive electrode end of the battery to be tested.
2. The battery noise test apparatus of claim 1, wherein: the low noise preamplifier module: and acquiring a low-frequency noise signal generated in the battery to be detected, and amplifying the low-frequency noise signal by using a low-noise preamplifier module.
3. The battery noise test apparatus of claim 1, wherein: the program-controlled gain amplifier module: further amplifying the low-frequency noise signal, and controlling the gain of the amplifier, thereby improving the test precision.
4. The battery noise test apparatus of claim 1, wherein: the program-controlled filter module: a plurality of filter bandwidths are set, and signals with one or more filter bandwidths are selected to be analyzed, so that the reliability of system test is improved.
5. The battery noise test apparatus of claim 1, wherein: the acquisition card module is: and converting the analog signal output by the program control filter module into a digital signal.
6. The battery noise test apparatus of claim 1, wherein: the data processing module: and acquiring and analyzing the noise signal of the digital quantity, and evaluating the performance of the battery to be tested.
7. The battery noise test apparatus of claim 1, wherein: the control unit module: and controlling the amplification factor of the programmable gain amplifier, the bandwidth of the programmable filter and the working mode of the low-noise discharge circuit module.
8. The battery noise test apparatus of claim 1, wherein: the isolation circuit module: the circuits are isolated, and mutual influence is avoided.
9. The battery noise test apparatus of claim 1, wherein: the low-noise discharge circuit module: and setting a discharging mode of the battery to be tested, wherein the discharging mode of the battery to be tested can set the values of constant voltage/constant current discharging and voltage/current.
10. The battery noise test apparatus of claim 1, wherein: the isolation circuit module is an optical coupler or an optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921568620.XU CN211206736U (en) | 2019-09-20 | 2019-09-20 | Battery noise testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921568620.XU CN211206736U (en) | 2019-09-20 | 2019-09-20 | Battery noise testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471000A (en) * | 2019-09-20 | 2019-11-19 | 深圳市新威尔电子有限公司 | Battery noise test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471000A (en) * | 2019-09-20 | 2019-11-19 | 深圳市新威尔电子有限公司 | Battery noise test device |
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