CN103513216A - Calibration method for multi-path direct-current ammeter - Google Patents
Calibration method for multi-path direct-current ammeter Download PDFInfo
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- CN103513216A CN103513216A CN201210213854.9A CN201210213854A CN103513216A CN 103513216 A CN103513216 A CN 103513216A CN 201210213854 A CN201210213854 A CN 201210213854A CN 103513216 A CN103513216 A CN 103513216A
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Abstract
The invention provides a calibration method for a multi-path direct-current ammeter including a metering chip and a central processing unit. The calibration method comprises the following steps that: a standard source respectively powers all loops and provides a metering standard; the central processing unit sends a calibration command to the metering chip; the metering chip compares the standard source with a self measurement result to complete internal calibration automatically and the result is stored into a corresponding calibration register. Therefore, the working efficiency and the accuracy of the calibration are improved.
Description
Technical field
The present invention relates to electrical energy meter calibration technical field, relate in particular to a kind of correction method of multi-channel DC ammeter.
Background technology
The production of electric energy is different from the production of other products, is characterized in that generating plant generating, power supply department power supply, user power utilization ，Zhe Sange department are linked to be a network system and work incessantly, indispensable mutually.Between them, how to sell electric energy, economic balance how, need measure between a measurement instrument San Ge department, and calculate the quantity of electric energy.With the closely-related electric energy meter of productive life be the main tool of current metering and economic balance electric energy, accurately whether its performance and, be directly connected to country and user's economic interests, so underproof electric energy meter is carried out to error adjustment seem very important.
For keeping the national economy production order, safeguard tripartite's interests, country has formulated " measurement Law ", and the electric energy meter of adjusting for trade is listed in to compulsory verification scope.Electric energy meter checking device, as electric energy meter being carried out to the standard device of error checking, can produce producer, power supply department and metrological service for electric energy hypergene electronic type or induction type electric energy meter are carried out to verification.The development of electric energy meter checking device from " electrician's formula " calibration equipment to " electronic type " calibration equipment again to " program control type " calibration equipment.
Summary of the invention
The object of the present invention is to provide a kind of correction method of multi-channel DC ammeter.
Correspondingly, the correction method of a kind of multi-channel DC ammeter of the present invention, this ammeter comprises computation chip and central processing unit, it is characterized in that, correction method comprises the following steps:
Standard source is powered in Dui Ge loop respectively, and measurement standard is provided;
Central processing unit sends calibration command to computation chip;
Computation chip compares standard source and self measurement result, automatically completes internal calibration and deposits result in corresponding calibration register.
As a further improvement on the present invention, described computation chip is CS5460.
As a further improvement on the present invention, described computation chip is eight, and central processing unit is one.
The invention has the beneficial effects as follows: the work efficiency and the accuracy that have improved calibration.
Accompanying drawing explanation
Fig. 1 shows the process flow diagram of the correction method of a kind of multi-channel DC ammeter of the present invention.
Embodiment
Below with reference to each embodiment shown in the drawings, describe the present invention.But these embodiments do not limit the present invention, the conversion in the structure that those of ordinary skill in the art makes according to these embodiments, method or function is all included in protection scope of the present invention.
As shown in Figure 1, the correction method of a kind of multi-channel DC ammeter of the present invention, comprises the following steps:
Standard source is powered in Dui Ge loop respectively, and measurement standard is provided;
Central processing unit sends calibration command to computation chip;
Computation chip compares standard source and self measurement result, automatically completes internal calibration and deposits result in corresponding calibration register.
Particularly, multi-channel DC ammeter adopts CS5460 chip as computation chip, comprises a central processing unit, eight CS5460 computation chips on every circuit board, can measure eight road direct currents.
Be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should make instructions as a whole, technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Listed a series of detailed description is above only illustrating for feasibility embodiment of the present invention; they are not in order to limit the scope of the invention, all disengaging within equivalent embodiment that skill spirit of the present invention does or change all should be included in protection scope of the present invention.
Claims (3)
1. a correction method for multi-channel DC ammeter, this ammeter comprises computation chip and central processing unit, it is characterized in that, correction method comprises the following steps:
Standard source is powered in Dui Ge loop respectively, and measurement standard is provided;
Central processing unit sends calibration command to computation chip;
Computation chip compares standard source and self measurement result, automatically completes internal calibration and deposits result in corresponding calibration register.
2. the correction method of a kind of multi-channel DC ammeter according to claim 1, is characterized in that: described computation chip is CS5460.
3. the correction method of a kind of multi-channel DC ammeter according to claim 2, is characterized in that: described computation chip is eight, and central processing unit is one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213854.9A CN103513216A (en) | 2012-06-27 | 2012-06-27 | Calibration method for multi-path direct-current ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213854.9A CN103513216A (en) | 2012-06-27 | 2012-06-27 | Calibration method for multi-path direct-current ammeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103513216A true CN103513216A (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210213854.9A Pending CN103513216A (en) | 2012-06-27 | 2012-06-27 | Calibration method for multi-path direct-current ammeter |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253358A (en) * | 2011-04-21 | 2011-11-23 | 深圳市锐能微科技有限公司 | Method for correcting electric energy meter by using correction system, and correction system |
| CN102279313A (en) * | 2011-08-05 | 2011-12-14 | 深圳威胜科技有限公司 | Method for calibrating electric energy meter after welding and device thereof |
| CN102411090A (en) * | 2011-12-15 | 2012-04-11 | 华立仪表集团股份有限公司 | Self-checking electronic energy meter and self-checking method thereof |
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2012
- 2012-06-27 CN CN201210213854.9A patent/CN103513216A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253358A (en) * | 2011-04-21 | 2011-11-23 | 深圳市锐能微科技有限公司 | Method for correcting electric energy meter by using correction system, and correction system |
| CN102279313A (en) * | 2011-08-05 | 2011-12-14 | 深圳威胜科技有限公司 | Method for calibrating electric energy meter after welding and device thereof |
| CN102411090A (en) * | 2011-12-15 | 2012-04-11 | 华立仪表集团股份有限公司 | Self-checking electronic energy meter and self-checking method thereof |
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Application publication date: 20140115 |