CN204065226U - A kind of instantaneous peak voltage measuring instrument - Google Patents
A kind of instantaneous peak voltage measuring instrument Download PDFInfo
- Publication number
- CN204065226U CN204065226U CN201420452717.5U CN201420452717U CN204065226U CN 204065226 U CN204065226 U CN 204065226U CN 201420452717 U CN201420452717 U CN 201420452717U CN 204065226 U CN204065226 U CN 204065226U
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- China
- Prior art keywords
- circuit
- peakvalue
- checking
- mcu control
- measuring instrument
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- Expired - Fee Related
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- 238000001514 detection method Methods 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000005070 sampling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model provides a kind of instantaneous peak voltage measuring instrument, comprise signal input circuit, bleeder circuit, IE circuit, peakvalue's checking and holding circuit, A/D sample circuit, MCU control circuit and digital pipe display circuit, signal input circuit electrical connection bleeder circuit, bleeder circuit is electrically connected IE circuit and peakvalue's checking and holding circuit respectively, peakvalue's checking is electrically connected A/D sample circuit with holding circuit, A/D sample circuit electrical connection MCU control circuit, MCU control circuit electrical connection digital pipe display circuit, the utility model is reasonable in design, practical easy, detection sensitivity is high, switching rate is high, there is good using value.
Description
Technical field
The utility model relates to power measurement field, is specifically related to a kind of instantaneous peak voltage measuring instrument.
Background technology
Peakvalue's checking is one of method of data acquisition in oscillograph.During oscilloscope display waveform, in order to the demand obtaining burr can be met on storage depth, sampling mode, average mode and peak detection methods can be taked.Sampling mode carries out sampling by the average time interval to signal to create waveform, when this mode will catch narrow burr, oscillograph could must realize with high sampling rate, and data need all to store, when the moment that the frequency of signal is lower, oscillograph must by time base gear to be transferred to equivalent sampling rate very low, collect burr signal very difficult.
Utility model content
The purpose of this utility model is for solving above-mentioned deficiency, provides a kind of instantaneous peak voltage measuring instrument.
The purpose of this utility model is achieved through the following technical solutions:
A kind of instantaneous peak voltage measuring instrument, comprise signal input circuit, bleeder circuit, IE circuit, peakvalue's checking and holding circuit, A/D sample circuit, MCU control circuit and digital pipe display circuit, signal input circuit electrical connection bleeder circuit, bleeder circuit is electrically connected IE circuit and peakvalue's checking and holding circuit respectively, peakvalue's checking is electrically connected A/D sample circuit with holding circuit, A/D sample circuit electrical connection MCU control circuit, MCU control circuit electrical connection digital pipe display circuit.
The utility model also has some technical characteristics like this:
Described peakvalue's checking and holding circuit comprise two identical operational amplifiers, and two operational amplifier series connection.
Described A/D sample circuit comprises two resistance and an A/D converter, connects after two resistor coupled in parallel with A/D converter.
Described MCU control circuit adopts P89V51RD2 model chip.
The utility model has effect useful as follows:
The utility model is reasonable in design, and practical easy, detection sensitivity is high, and switching rate is high, has good using value.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model;
Fig. 2 is bleeder circuit figure of the present utility model;
Fig. 3 is IE circuit diagram of the present utility model;
Fig. 4 is peakvalue's checking of the present utility model and holding circuit circuit diagram;
Fig. 5 is A/D sample circuit figure of the present utility model;
Fig. 6 is single chip circuit figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, a kind of instantaneous peak voltage measuring instrument, comprise signal input circuit 1, bleeder circuit 2, IE circuit 3, peakvalue's checking and holding circuit 4, A/D sample circuit 5, MCU control circuit 6 and digital pipe display circuit 7, signal input circuit 1 is electrically connected bleeder circuit 2, bleeder circuit 2 is electrically connected IE circuit 3 and peakvalue's checking and holding circuit 4 respectively, peakvalue's checking is electrically connected A/D sample circuit 5 with holding circuit 4, A/D sample circuit 5 is electrically connected MCU control circuit 6, MCU control circuit 6 is electrically connected digital pipe display circuit 7, described peakvalue's checking and holding circuit comprise two identical operational amplifiers, and two operational amplifier series connection, described A/D sample circuit comprises two resistance and an A/D converter, connect with A/D converter after two resistor coupled in parallel, described MCU control circuit adopts P89V51RD2 model chip.
Bleeder circuit utilizes high-voltage arm resistance R1 and low-voltage arm resistance R2 to form resistance divider, and voltage signal takes out in low-pressure side.For protection secondary side measurement mechanism, low resistance installs a stabilivolt D5 additional, its sparking voltage be slightly less than just or equal the maximum voltage 5V that low-pressure side allows, being the intrinsic standoff ratio making electronic circuit not affect voltage divider, adding follower at secondary side.The effect of peak value inspection circuit is: follow input signal, when being input to maximum voltage value, peak detctor keeps this peak voltage automatically always.IE circuit makes amplifier be in open-loop gain state, and its output valve is-5V or+5V, after diode D4, makes it export to be 0 or 5V, meets the normal working signal of single-chip microcomputer: low level and high level.When after the look-at-me receiving IE circuit, start AD change-over circuit, and magnitude of voltage is directly delivered to digital pipe display circuit.
Claims (4)
1. an instantaneous peak voltage measuring instrument, comprise signal input circuit, bleeder circuit, IE circuit, peakvalue's checking and holding circuit, A/D sample circuit, MCU control circuit and digital pipe display circuit, it is characterized in that: signal input circuit electrical connection bleeder circuit, bleeder circuit is electrically connected IE circuit and peakvalue's checking and holding circuit respectively, peakvalue's checking is electrically connected A/D sample circuit with holding circuit, A/D sample circuit electrical connection MCU control circuit, MCU control circuit electrical connection digital pipe display circuit.
2. a kind of instantaneous peak voltage measuring instrument as claimed in claim 1, is characterized in that: described peakvalue's checking and holding circuit comprise two identical operational amplifiers, and two operational amplifier series connection.
3. a kind of instantaneous peak voltage measuring instrument as claimed in claim 1, is characterized in that: described A/D sample circuit comprises two resistance and an A/D converter, connects after two resistor coupled in parallel with A/D converter.
4. a kind of instantaneous peak voltage measuring instrument as claimed in claim 1, is characterized in that: described MCU control circuit adopts P89V51RD2 model chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420452717.5U CN204065226U (en) | 2014-08-12 | 2014-08-12 | A kind of instantaneous peak voltage measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420452717.5U CN204065226U (en) | 2014-08-12 | 2014-08-12 | A kind of instantaneous peak voltage measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204065226U true CN204065226U (en) | 2014-12-31 |
Family
ID=52206710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420452717.5U Expired - Fee Related CN204065226U (en) | 2014-08-12 | 2014-08-12 | A kind of instantaneous peak voltage measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204065226U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645904A (en) * | 2016-11-03 | 2017-05-10 | 长沙群瑞电子科技有限公司 | Lightning peak voltage waveform recording instrument |
| CN107561049A (en) * | 2017-09-05 | 2018-01-09 | 重庆民泰香料化工有限责任公司 | A kind of AFS peak sample circuit and control method |
| CN110806503A (en) * | 2018-08-04 | 2020-02-18 | 张坚 | Novel peak value detection circuit |
-
2014
- 2014-08-12 CN CN201420452717.5U patent/CN204065226U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645904A (en) * | 2016-11-03 | 2017-05-10 | 长沙群瑞电子科技有限公司 | Lightning peak voltage waveform recording instrument |
| CN107561049A (en) * | 2017-09-05 | 2018-01-09 | 重庆民泰香料化工有限责任公司 | A kind of AFS peak sample circuit and control method |
| CN110806503A (en) * | 2018-08-04 | 2020-02-18 | 张坚 | Novel peak value detection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151228 Address after: 510800 Guangdong city in Guangzhou Province, Xinhua Street, Tian Village economic cooperatives southeast Huadu District days Road No. 62 building room 708 (only for office buildings function) Patentee after: Guangzhou Yingfan Electrical Technology Co., Ltd. Address before: Yang Jia Cun town Shaoxing city Shengzhou City, Zhejiang province 312452 Patentee before: Yang Xuefei |
|
| 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: 20141231 Termination date: 20160812 |