CN203324384U - Low-frequency alternating-current signal measurement system - Google Patents
Low-frequency alternating-current signal measurement system Download PDFInfo
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- CN203324384U CN203324384U CN2013203013146U CN201320301314U CN203324384U CN 203324384 U CN203324384 U CN 203324384U CN 2013203013146 U CN2013203013146 U CN 2013203013146U CN 201320301314 U CN201320301314 U CN 201320301314U CN 203324384 U CN203324384 U CN 203324384U
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- measurement system
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Abstract
The utility model discloses a low-frequency alternating-current signal measurement system which comprises a single chip microcomputer and a display module. The low-frequency alternating-current signal measurement system is characterized in that the single chip microcomputer is respectively connected with a signal amplifying module and a signal adjusting module, the signal adjusting module is connected to a measured signal which is adjusted by the signal adjusting module in real time, the adjusted measured signal is transmitted to the single chip microcomputer for operation processing after being converted by the signal amplifying module, a processing result is displayed by the display module, and the single chip microcomputer adopts a C8051F020 fully-integrated mixed signal system-level MCU chip. The low-frequency alternating-current signal measurement system has the advantages of simple and clear structure, high measuring accuracy, high conversion speed, small offset voltage and freely-adjustable magnification.
Description
Technical field
The utility model relates to a kind of low-frequency ac signal measuring system, power measurement field.
Background technology
Current, China's power industry is in the critical period of equipment upgrading, needs a large amount of advanced power equipments.The power equipment manufacturing not only will meet power industry fast-developing needed a large amount of power equipments before " 11th Five-Year " arrives the year two thousand twenty, more need to strengthen the exploitation of New Product, adapt to power industry and economizing on resources, improving efficiency of energy utilization, meet environmental requirement, realizing sustainable development.The power equipment manufacturing faces a huge market, is also a very large opportunity to develop.Suggestion power equipment manufacturing will improve international competitiveness.In electric system, low-frequency ac signal is usually because zero passage phenomenon repeatedly causes system normally to move.Measure in equipment for low-frequency ac signal at present, can't be measured the accurate numerical value of low-frequency ac signal.
Summary of the invention
The utility model will solve above-mentioned technology order and be to provide a kind of low-frequency ac signal measuring system, and this system architecture is simple and clear, and measuring accuracy is high, slewing rate is fast, offset voltage is little, and enlargement factor can be regulated arbitrarily.
Technical problem to be solved in the utility model realizes by the following technical solutions:
The low-frequency ac signal measuring system, this system comprises single-chip microcomputer and display module, it is characterized in that: described single-chip microcomputer is connected with respectively signal amplification module and signal adjusting module, described signal adjusting module also accesses in measured signal, and carry out the real-time adjustment to measured signal by signal adjusting module, and the measured signal after adjusting is flowed to single-chip microcomputer after the conversion of signal amplification module carry out calculation process, the result of processing shows by display module.
Described single-chip microcomputer adopts the fully-integrated mixed-signal system level MCU chip of C8051F020.
The beneficial effects of the utility model are: this system architecture is simple and clear, thereby has adopted the fully-integrated mixed-signal system level MCU chip of C8051F020 to improve that measuring accuracy is high, slewing rate is fast, offset voltage is little, and enlargement factor can be regulated arbitrarily.
The accompanying drawing explanation
Fig. 1 is the utility model system architecture schematic diagram.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, the low-frequency ac signal measuring system, this system comprises single-chip microcomputer and display module, single-chip microcomputer is connected with respectively signal amplification module and signal adjusting module, signal adjusting module also accesses in measured signal, and carry out in real time the adjustment to measured signal by signal adjusting module, and the measured signal after adjusting is flowed to single-chip microcomputer after the conversion of signal amplification module carry out calculation process, the result of processing shows by display module.This system architecture is simple and clear, thereby single-chip microcomputer has adopted the fully-integrated mixed-signal system level MCU chip of C8051F020 to improve that measuring accuracy is high, slewing rate is fast, offset voltage is little, and enlargement factor can be regulated arbitrarily.
Above demonstration and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. low-frequency ac signal measuring system, this system comprises single-chip microcomputer and display module, it is characterized in that: described single-chip microcomputer is connected with respectively signal amplification module and signal adjusting module, described signal adjusting module also accesses in measured signal, and carry out the real-time adjustment to measured signal by signal adjusting module, and the measured signal after adjusting is flowed to single-chip microcomputer after the conversion of signal amplification module carry out calculation process, the result of processing shows by display module.
2. low-frequency ac signal measuring system according to claim 1, it is characterized in that: described single-chip microcomputer adopts the fully-integrated mixed-signal system level MCU chip of C8051F020.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203013146U CN203324384U (en) | 2013-05-29 | 2013-05-29 | Low-frequency alternating-current signal measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203013146U CN203324384U (en) | 2013-05-29 | 2013-05-29 | Low-frequency alternating-current signal measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203324384U true CN203324384U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203013146U Expired - Fee Related CN203324384U (en) | 2013-05-29 | 2013-05-29 | Low-frequency alternating-current signal measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203324384U (en) |
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2013
- 2013-05-29 CN CN2013203013146U patent/CN203324384U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20140529 |