CN202512167U - Digital voltage meter - Google Patents
Digital voltage meter Download PDFInfo
- Publication number
- CN202512167U CN202512167U CN2012201266776U CN201220126677U CN202512167U CN 202512167 U CN202512167 U CN 202512167U CN 2012201266776 U CN2012201266776 U CN 2012201266776U CN 201220126677 U CN201220126677 U CN 201220126677U CN 202512167 U CN202512167 U CN 202512167U
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- module
- data processing
- input end
- modular converter
- processing module
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Abstract
The utility model discloses a digital voltage meter, which is characterized by comprising a measuring module, a converting module, a data processing module and a display module; an output end of the measuring module is connected with an input end of the converting module; an output end of the converting module is connected with an input end of the data processing module; and an output end of the data processing module is connected with an input end of the displaying module. The digital voltage meter is simple in structure and intuitional in display result.
Description
Technical field
The utility model belongs to electronic applications, relates to a kind of digital voltmeter.
Background technology
Present voltage table is through electromagnetic induction pointer to be deflected, and the reading through the pointer indication reads the voltage of measured circuit.This kind voltage table volume is bigger, the reading susceptible to, and cost is high, easy break-down.
The utility model content
The technical matters that the utility model will solve provides a kind of digital voltmeter, has solved present voltage table complex structure, is difficult for the problem of accurate reading.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
A kind of digital voltmeter is characterized in that, comprises measurement module, modular converter, data processing module, display module; The output terminal of described measurement module links to each other with the input end of modular converter, and the output terminal of described modular converter links to each other with the input end of data processing module, and the output terminal of described data processing module links to each other with the input end of display module.
Described modular converter adopts the ADC0804 chip.
Described display module adopts charactron to show.
The beneficial effect of the utility model has:
The utility model is changed the signal of metering circuit through the ADC0804 chip, again by
Charactron shows, and the utility model is simple in structure, measures accurately, and intuitive display is prone to as a result
In reading.
Description of drawings
Fig. 1 is the general structure synoptic diagram of the utility model embodiment 1.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
Embodiment 1:
As shown in Figure 1, comprise measurement module, modular converter, data processing module, display module; The output terminal of described measurement module links to each other with the input end of modular converter, and the output terminal of described modular converter links to each other with the input end of data processing module, and the output terminal of described data processing module links to each other with the input end of display module.With the data that measure, utilize chip ADC0804 to do A/D converter through measurement module, utilize potentiometer RP that the analog quantity input is provided.Program, convert analog quantity to the binary digit amount.When work; System is by the aanalogvoltage of certain speed collection input; The aanalogvoltage that to gather input then is input to data processing circuit to this 8 bit digital quantity again through ADC0804 conversion back output 8 bit digital quantity, will obtain the polar code and the numerical code of aanalogvoltage after handling through data processing circuit; The polar code and the numerical code of aanalogvoltage are input in the display circuit, just can obtain the demonstration of tested voltage through display circuit.
As far as 8 ADC0804, the accurate position of the output of optic nerve has 2
8=256 kinds; The resolution that is it is 1/256, suppose input signal Vin for-24V～+ the 24V voltage range, then its minimum output voltage is 48V/256=0.1875V; Minimum voltage value that ADC0804 can change that Here it is also is the minimum voltage value of this voltage table institute energy measurement.
Claims (3)
1. a digital voltmeter is characterized in that, comprises measurement module, modular converter, data processing module, display module; The output terminal of described measurement module links to each other with the input end of modular converter, and the output terminal of described modular converter links to each other with the input end of data processing module, and the output terminal of described data processing module links to each other with the input end of display module.
2. digital voltmeter as claimed in claim 1 is characterized in that, described modular converter adopts the ADC0804 chip.
3. digital voltmeter as claimed in claim 1 is characterized in that, described display module adopts charactron to show.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201266776U CN202512167U (en) | 2012-03-21 | 2012-03-21 | Digital voltage meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201266776U CN202512167U (en) | 2012-03-21 | 2012-03-21 | Digital voltage meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202512167U true CN202512167U (en) | 2012-10-31 |
Family
ID=47064644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201266776U Expired - Fee Related CN202512167U (en) | 2012-03-21 | 2012-03-21 | Digital voltage meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202512167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353201A (en) * | 2015-12-14 | 2016-02-24 | 浪潮(北京)电子信息产业有限公司 | Voltage data measurement method and system |
-
2012
- 2012-03-21 CN CN2012201266776U patent/CN202512167U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353201A (en) * | 2015-12-14 | 2016-02-24 | 浪潮(北京)电子信息产业有限公司 | Voltage data measurement method and system |
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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: 20121031 Termination date: 20130321 |