CN202404134U - Ammeter automatically identifying inaccuracy and failure - Google Patents

Ammeter automatically identifying inaccuracy and failure Download PDF

Info

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
Authority
CN
China
Prior art keywords
computation chip
ammeter
sensor
voltage sensor
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011203878912U
Other languages
Chinese (zh)
Inventor
雷立
Original Assignee
雷立
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 雷立 filed Critical 雷立
Priority to CN2011203878912U priority Critical patent/CN202404134U/en
Application granted granted Critical
Publication of CN202404134U publication Critical patent/CN202404134U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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

Accurate, inefficacy ammeter are lost in a kind of automatic identification
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.
CN2011203878912U 2011-10-12 2011-10-12 Ammeter automatically identifying inaccuracy and failure Expired - Fee Related CN202404134U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN202433508U (en) Detecting device of self-adaptive battery management system
CN202404134U (en) Ammeter automatically identifying inaccuracy and failure
CN203705602U (en) Automatic detection and calibration device for bridge board of electric vehicle
CN204439824U (en) A kind of electric energy meter electric source abnormal detection circuit
CN201096873Y (en) Dry battery voltage detection device based on voltage method
CN203838315U (en) Three-phase motor phase sequence and steering measurement device
CN103698691A (en) Automatic detection calibration device and automatic detection calibration method of electric car bridge board
CN204989379U (en) Net twine survey line ware with pilot lamp
CN102426278A (en) Ammeter capable of automatically identifying misalignment and failure
CN105717363A (en) Current loop impedance testing device of smart meter and impedance calculation method
CN102645600B (en) Meter reading terminal hardware detection tool
CN208044026U (en) A kind of DC/AC drive modules dynamic accelerated ageing test device
CN202512728U (en) Hardware detecting tool for meter-reading terminal
CN109061525A (en) A kind of LED drive power Performance Test System
CN207636689U (en) A kind of distribution transformer operating state monitoring system
CN201637837U (en) Adapter distinguishing control device used for radar power module test system
CN204903681U (en) Many functional test instrument
CN206531951U (en) Single-phase electric energy meter with fault simulating function
CN205120380U (en) Fork truck is tester for instrument
CN201477176U (en) Cable marker checking device
CN203181322U (en) Intelligent self-check device for LED lamps
CN207181402U (en) A kind of oil plant oxygen simulates intelligent checking system
CN203909143U (en) Digital resistor and capacitor meter
CN208091808U (en) A kind of secondary small line terminal strength testing tool of electric system
CN212255499U (en) Integrated power distribution automation terminal signal and control test system

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