CN202404134U - Ammeter automatically identifying inaccuracy and failure - Google Patents
Ammeter automatically identifying inaccuracy and failure Download PDFInfo
- Publication number
- CN202404134U CN202404134U CN2011203878912U CN201120387891U CN202404134U CN 202404134 U CN202404134 U CN 202404134U CN 2011203878912 U CN2011203878912 U CN 2011203878912U CN 201120387891 U CN201120387891 U CN 201120387891U CN 202404134 U CN202404134 U CN 202404134U
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- computation chip
- ammeter
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- voltage sensor
- voltage
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- 238000010586 diagram Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Abstract
The utility model relates to an ammeter automatically identifying inaccuracy and failure, comprising a first power supply, a first current sensor, a first voltage sensor and a first metering chip; the first current sensor is arranged in a main circuit and is in connection with a current input terminal of the first metering chip; the voltage sensor is in connection with a voltage input terminal of the first metering chip. The ammeter also comprises a second voltage sensor, a second metering chip and a comparison circuit for comparing metering values of the two metering chips; the second voltage sensor is arranged in the main circuit; the first current sensor is in connection with a current input terminal of the second metering chip; the second voltage sensor is in connection with a voltage input terminal of the second metering chip; a metering value output terminal of the first metering chip and a metering value output terminal of the second metering chip are both in connection with the comparison circuit. The ammeter of the utility model solves the technical problem that an existing ammeter can not timely discover inaccuracy and failure and possesses the advantage of automatically identifying inaccuracy and failure of an ammeter.
Description
Technical field
The present invention relates to a kind of automatic identification and lose accurate, inefficacy ammeter.
Background technology
As shown in Figure 1; The structure of existing ammeter generally all is a power circuit, current sensor circuit, voltage sensor circuit and computation chip and accessory circuit thereof, and power supply is supplied power to computation chip, and current sensor passes to current signal in the current input terminal circuit of computation chip; Voltage sensor passes to voltage signal in the voltage input end circuit of computation chip; Through computation chip metering electric weight, output ammeter measurement result, but there is defective in this ammeter structure:
As long as 1, because inefficacy and mistake standard that the former device value that has place's circuit to damage or survey voltage, electric current changes and all can cause ammeter.
2, ammeter loses standard, losing efficacy is difficult to come to light, and causes very big loss to administrative authority.
Summary of the invention
Lose the accurate technical matters that can not in time find with inefficacy in order to solve existing ammeter, the present invention provides a kind of automatic identification to lose accurate, inefficacy ammeter.
Technical solution of the present invention:
Accurate, inefficacy ammeter are lost in a kind of automatic identification; Comprise first power supply, first current sensor, first voltage sensor and first computation chip; Said first current sensor is arranged on the main circuit, and said first power supply is given the power supply of first computation chip, and said first current sensor is connected with the current input terminal of first computation chip; Said first voltage sensor is connected with the voltage input end of first computation chip, and its special character is:
It also comprises the comparator circuit of second voltage sensor, second computation chip and two computation chip variables of comparison, and said second voltage sensor is arranged on the main circuit,
Said first power supply is given the power supply of second computation chip; Said first current sensor is connected with the current input terminal of second computation chip; Said second voltage sensor is connected with the voltage input end of second computation chip, and the variable output terminal of said first computation chip and the variable output terminal of second computation chip all are connected with comparator circuit.
Above-mentioned comparator circuit is DLC(digital logic circuit) or central controller CPU.
Accurate, inefficacy ammeter are lost in a kind of automatic identification; Comprise first power supply, first current sensor, first voltage sensor and first computation chip; Said first current sensor and first voltage sensor are arranged on the main circuit, and said first power supply is carried to the power supply of first computation chip, and said first current sensor is connected with the current input terminal of first computation chip; Said first voltage sensor is connected with the voltage input end of first computation chip, and its special character is:
It also comprises the comparator circuit of second source, second current sensor, second voltage sensor, second computation chip and two computation chip variables of comparison,
Said second current sensor and second voltage sensor are arranged on the main circuit; Said second source is carried to second computation chip and being supplied power; Said second current sensor is connected with the current input terminal of second computation chip, the variable output terminal of said first computation chip and second computation chip the variable output terminal all be connected with comparator circuit.
Above-mentioned comparator circuit is DLC(digital logic circuit) or central controller CPU.
The advantage that the utility model had:
1, the utility model is provided with two in an ammeter has individual computation chip, discerns the accurate and inefficacy of mistake of ammeter automatically.
2, the utility model adopts two computation chips and two pressure transducers, when an ammeter has been broken or made mistakes, can not influence the work of whole ammeter.
Description of drawings
Fig. 1 is an existing ammeter synoptic diagram as a result;
Fig. 2 is the structural representation of a kind of ammeter of the utility model;
Fig. 3 is the synoptic diagram as a result of the another kind of ammeter of the utility model.
Embodiment
As shown in Figure 2; Accurate, inefficacy ammeter are lost in a kind of automatic identification; Comprise first power supply, first current sensor, first voltage sensor and first computation chip, said first current sensor and first voltage sensor are arranged on the main circuit, and said first power supply is carried to first computation chip and being supplied power; Said first current sensor is connected with the current input terminal of first computation chip; Said first voltage sensor is connected with the voltage input end of first computation chip, and it also comprises the comparator circuit of second source, second current sensor, second voltage sensor, second computation chip and two computation chip variables of comparison
Said second current sensor and second voltage sensor are arranged on the main circuit; Said second source is carried to second computation chip and being supplied power; Said second current sensor is connected with the current input terminal of second computation chip, the variable output terminal of said first computation chip and second computation chip the variable output terminal all be connected with comparator circuit.Comparator circuit is DLC(digital logic circuit) or central controller CPU.
As shown in Figure 3; Accurate, inefficacy ammeter are lost in a kind of automatic identification, comprise first power supply, first current sensor, first voltage sensor and first computation chip, and said first current sensor is arranged on the main circuit; Said first power supply is given the power supply of first computation chip; Said first current sensor is connected with the current input terminal of first computation chip, and said first voltage sensor is connected with the voltage input end of first computation chip, and it also comprises the comparator circuit of second voltage sensor, second computation chip and two computation chip variables of comparison; Said second voltage sensor is arranged on the main circuit
Said first power supply is given the power supply of second computation chip; Said first current sensor is connected with the current input terminal of second computation chip; Said second voltage sensor is connected with the voltage input end of second computation chip, and the variable output terminal of said first computation chip and the variable output terminal of second computation chip all are connected with comparator circuit.Comparator circuit is DLC(digital logic circuit) or central controller CPU.
Two ammeters are installed in an ammeter use computation chip, each uses individual all the time for two blocks of shared power supplys of ammeter computation chip and a current sensor, or two ammeter computation chips are with separately power supply and current sensor separately, voltage sensor.Wherein a computation chip links to each other by general relation with the display part of ammeter, becomes a complete ammeter.Compare with certain cycle with a DLC(digital logic circuit) or single-chip microprocessor MCU, when exceeding the error of setting, ammeter lost accurate or lost efficacy carry out acoustic alarm or light is reported to the police or remote alarms or several kinds of modes are reported to the police simultaneously.
Claims (4)
1. discern mistake standard, inefficacy ammeter automatically for one kind; Comprise first power supply, first current sensor, first voltage sensor and first computation chip; Said first current sensor is arranged on the main circuit, and said first power supply is given the power supply of first computation chip, and said first current sensor is connected with the current input terminal of first computation chip; Said first voltage sensor is connected with the voltage input end of first computation chip, it is characterized in that:
It also comprises the comparator circuit of second voltage sensor, second computation chip and two computation chip variables of comparison, and said second voltage sensor is arranged on the main circuit,
Said first power supply is given the power supply of second computation chip; Said first current sensor is connected with the current input terminal of second computation chip; Said second voltage sensor is connected with the voltage input end of second computation chip, and the variable output terminal of said first computation chip and the variable output terminal of second computation chip all are connected with comparator circuit.
2. accurate, inefficacy ammeter are lost in automatic identification according to claim 1, and it is characterized in that: said comparator circuit is DLC(digital logic circuit) or central controller or single-chip microcomputer.
3. discern mistake standard, inefficacy ammeter automatically for one kind; Comprise first power supply, first current sensor, first voltage sensor and first computation chip; Said first current sensor and first voltage sensor are arranged on the main circuit, and said first power supply is carried to the power supply of first computation chip, and said first current sensor is connected with the current input terminal of first computation chip; Said first voltage sensor is connected with the voltage input end of first computation chip, it is characterized in that:
It also comprises the comparator circuit of second source, second current sensor, second voltage sensor, second computation chip and two computation chip variables of comparison,
Said second current sensor and second voltage sensor are arranged on the main circuit; Said second source offers the power supply of second computation chip; Said second current sensor is connected with the current input terminal of second computation chip, the variable output terminal of said first computation chip and second computation chip the variable output terminal all be connected with comparator circuit.
4. accurate, inefficacy ammeter are lost in automatic identification according to claim 3, and it is characterized in that: said comparator circuit is DLC(digital logic circuit) or central controller or single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203878912U CN202404134U (en) | 2011-10-12 | 2011-10-12 | Ammeter automatically identifying inaccuracy and failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203878912U CN202404134U (en) | 2011-10-12 | 2011-10-12 | Ammeter automatically identifying inaccuracy and failure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202404134U true CN202404134U (en) | 2012-08-29 |
Family
ID=46701774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203878912U Expired - Fee Related CN202404134U (en) | 2011-10-12 | 2011-10-12 | Ammeter automatically identifying inaccuracy and failure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202404134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426278A (en) * | 2011-10-12 | 2012-04-25 | 雷立 | Ammeter capable of automatically identifying misalignment and failure |
| CN106526311A (en) * | 2015-09-15 | 2017-03-22 | 国网辽宁省电力有限公司营口供电公司 | Electric quantity information acquisition device and electric quantity information acquisition method |
-
2011
- 2011-10-12 CN CN2011203878912U patent/CN202404134U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426278A (en) * | 2011-10-12 | 2012-04-25 | 雷立 | Ammeter capable of automatically identifying misalignment and failure |
| CN106526311A (en) * | 2015-09-15 | 2017-03-22 | 国网辽宁省电力有限公司营口供电公司 | Electric quantity information acquisition device and electric quantity information acquisition method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20141012 |
|
| EXPY | Termination of patent right or utility model |