CN104734366A - Measuring circuit power supplying method and device - Google Patents
Measuring circuit power supplying method and device Download PDFInfo
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- CN104734366A CN104734366A CN201310714854.1A CN201310714854A CN104734366A CN 104734366 A CN104734366 A CN 104734366A CN 201310714854 A CN201310714854 A CN 201310714854A CN 104734366 A CN104734366 A CN 104734366A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 238000005259 measurement Methods 0.000 claims description 54
- 230000006698 induction Effects 0.000 claims description 31
- 230000005674 electromagnetic induction Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 description 14
- 230000008859 change Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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- H02J5/005—
Abstract
The invention discloses a measuring circuit power supplying method and device. The measuring circuit power supplying method comprises the steps that a measuring current of a measured loop is obtained; the measuring current of the measured loop is converted into electric energy; the electric energy obtained through conversion is supplied to the measured loop. According to the measuring circuit power supplying method and device, the problem that in the related technology, a measuring circuit power supplying structure is complicated is solved.
Description
Technical field
The present invention relates to for electrical domain, in particular to a kind of measuring circuit method of supplying power to and device.
Background technology
Non-contact electric current measurement at present more adopts induced current table, by outside or powered battery, in interim observation process effectively, when carrying out long-time uninterrupted monitoring current, these externally feds and battery powered working method dangerous unreliable, induction power supply can be responded to power taking by circuit-under-test and solve the electrical energy demands when long-time uninterrupted monitoring current.
In guarantor's electric process, owing to protecting the particularity of electricity work, can not carry out transforming to former supply line and change, can not wiring be carried out.So conventional methods cannot be used to carry out monitoring load current.
Apply induction power supply technique and can reach guarantor electrician work to the requirement of load current monitoring and standard.Adopt the non-contact electric current measurement of induction power supply technique to install at any time to remove at any time, be not subject to the restriction in condition and place, without the need to wiring, without the need to external power source.
In Real-Time Monitoring, owing to requiring uninterruptedly to measure circuit, the requirement that monitoring supply line meets electric current can be reached, what mainly adopt in monitoring current at present has two kinds of modes, a kind of is by accessing the CT(current transformer be arranged in electricity consumption loop) measure electric current, its work electricity consumption uses power distribution cabinet line related, another kind of mainly artificial use is measured with the ammeter of battery, these two kinds of modes respectively have shortcoming, access CT is measured to the mode of electric current, mounting means cannot meet the requirement ensureing electricity consumption, plug and play cannot be accomplished, the object dismantled at any time.And the mode of manual measurement electric current, battery power cannot meet the requirement of Real-Time Monitoring electric current, cannot comprehensive monitoring electric current.
Therefore for this situation, apply induction power supply technique and can solve the interim long-time power consumption problem measuring electric current.
Compare the problem of more complicated for measuring circuit electric power-feeding structure in correlation technique, not yet propose effective solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of measuring circuit method of supplying power to and device, compares the problem of more complicated to solve measuring circuit electric power-feeding structure in correlation technique.
To achieve these goals, according to an aspect of the present invention, a kind of measuring circuit method of supplying power to is provided.This measuring circuit method of supplying power to comprises: the measurement electric current obtaining tested loop; Be electric energy by the measurement current conversion in described tested loop; By the electric energy that is converted to described tested loop power supply.
Further, be that electric energy comprises by the measurement current conversion in described tested loop: be electric energy by electromagnetic induction by the measurement current conversion in described tested loop.
Further, be that electric energy comprises by electromagnetic induction by the measurement current conversion in described tested loop: detect the variation magnetic field measured electric current and produce; Electric energy is converted to by described variation magnetic field.
Further, be converted to electric energy by described variation magnetic field and comprise: by induction coil, described variation magnetic field is responded to, obtain induced current; Described induced current is converted to the electric energy needed for described tested loop power supply by electric current finishing circuit.
Further, responded to described variation magnetic field by induction coil, after obtaining induced current, described measuring circuit method of supplying power to also comprises: measure described faradic size by current measurement circuit.
To achieve these goals, according to a further aspect in the invention, a kind of measuring circuit electric supply installation is provided.This measuring circuit electric supply installation comprises: acquiring unit, for obtaining the measurement electric current in tested loop; Converting unit, for being electric energy by the measurement current conversion in described tested loop; Power supply unit, for the electric energy by being converted to described tested loop power supply.
Further, described converting unit is used for by electromagnetic induction is electric energy by the measurement current conversion in described tested loop.
Further, described converting unit comprises: detection module, for detecting the variation magnetic field measured electric current and produce; Modular converter, for being converted to electric energy by described variation magnetic field.
Further, described detection module is used for being responded to described variation magnetic field by induction coil, obtains induced current, and described modular converter is used for described induced current being converted to electric energy needed for described tested loop power supply by electric current finishing circuit.
Further, described measuring circuit electric supply installation also comprises: measuring unit, for being responded to described variation magnetic field by induction coil, after obtaining induced current, measures described faradic size by current measurement circuit.
By the present invention, adopt the measurement electric current obtaining tested loop; Be electric energy by the measurement current conversion in described tested loop; By the electric energy that is converted to described tested loop power supply, because the electric energy that can be obtained by the measurement current conversion in tested loop is to described tested loop power supply, solves measuring circuit electric power-feeding structure in correlation technique and compare the problem of more complicated.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the measuring circuit electric supply installation according to the embodiment of the present invention; And
Fig. 2 is the flow chart of the measuring circuit method of supplying power to according to the embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fig. 1 is the schematic diagram of the measuring circuit electric supply installation according to the embodiment of the present invention.
As shown in Figure 1, this device comprises:
Acquiring unit 10, for obtaining the measurement electric current in tested loop.
Converting unit 20, for being electric energy by the measurement current conversion in described tested loop.
Power supply unit 30, for the electric energy by being converted to described tested loop power supply.
By the measuring circuit electric supply installation of the embodiment of the present invention, adopt the measurement electric current obtaining tested loop.Be electric energy by the measurement current conversion in described tested loop.By the electric energy that is converted to described tested loop power supply, because the electric energy that can be obtained by the measurement current conversion in tested loop is to described tested loop power supply, solves measuring circuit electric power-feeding structure in correlation technique and compare the problem of more complicated.
In one embodiment of the invention, described converting unit is used for by electromagnetic induction is electric energy by the measurement current conversion in described tested loop.
In one embodiment of the invention, described converting unit comprises: detection module, for detecting the variation magnetic field measured electric current and produce.Modular converter, for being converted to electric energy by described variation magnetic field.
In one embodiment of the invention, described detection module is used for being responded to described variation magnetic field by induction coil, obtain induced current, described modular converter is used for described induced current being converted to electric energy needed for described tested loop power supply by electric current finishing circuit.
In one embodiment of the invention, described measuring circuit electric supply installation also comprises: measuring unit, for being responded to described variation magnetic field by induction coil, after obtaining induced current, measures described faradic size by current measurement circuit.
The embodiment of the present invention additionally provides a kind of measuring circuit method of supplying power to.This measuring circuit method of supplying power to comprises:
Fig. 2 is the flow chart of the measuring circuit method of supplying power to according to the embodiment of the present invention.As shown in Figure 2, the method comprises:
Step S101, obtains the measurement electric current in tested loop.
The measurement current conversion in described tested loop is electric energy by step S102.
Step S103, by the electric energy that is converted to described tested loop power supply.
By the measuring circuit method of supplying power to of the embodiment of the present invention, adopt the measurement electric current obtaining tested loop, be electric energy by the measurement current conversion in described tested loop, by the electric energy that is converted to described tested loop power supply, because the electric energy that can be obtained by the measurement current conversion in tested loop is to described tested loop power supply, solves measuring circuit electric power-feeding structure in correlation technique and compare the problem of more complicated.
In one embodiment of the invention, be that electric energy comprises by the measurement current conversion in described tested loop: be electric energy by electromagnetic induction by the measurement current conversion in described tested loop.
In one embodiment of the invention, be that electric energy comprises by electromagnetic induction by the measurement current conversion in described tested loop: detect the variation magnetic field measured electric current and produce.Electric energy is converted to by described variation magnetic field.
In one embodiment of the invention, be converted to electric energy by described variation magnetic field and comprise: by induction coil, described variation magnetic field is responded to, obtain induced current.Described induced current is converted to the electric energy needed for described tested loop power supply by electric current finishing circuit.
In one embodiment of the invention, responded to described variation magnetic field by induction coil, after obtaining induced current, described measuring circuit method of supplying power to also comprises: measure described faradic size by current measurement circuit.
Adopt the current measurement techniques of induction power supply
During measurement of inductance electric current, measuring circuit needs to consume electric energy and carries out current measurement work, gather related data, while measurement electric current, by electromagnetic induction technology, carry out electromagnetic field by the electric current in tested loop and change out electric energy needed for measuring circuit, solve the power consumption problem of measuring circuit, Here it is adopts the current measurement techniques of induction power supply.
Induction power supply meets the electric energy uninterruptedly measured needed for electric current, and the volume decreasing measurement mechanism adds the scope of application of current measuring device.
Adopt the current measurement techniques theory and structure of induction power supply
Measure electric current time, tested electric current by measure magnetic field time, the magnetic field that can change, measuring circuit according to convert magnetic field induction go out change electric current, the principle of current measurement that Here it is.
With measuring, the principle of electric current is identical, using use coil-induced go out the electric current that produces of magnetic field as the electric current of measuring circuit for measuring circuit work, induction power supply that Here it is.The electric current of electromagnetic induction is change, needs the arrangement carrying out interlock circuit, really could become the power supply of measuring circuit.
Induction supply current is measured and is mainly divided into, induction coil part, current measurement circuit part, electric current finishing circuit part.
The purposes of induction supplying measure current technique
Owing to have employed induction supply power mode, do not limit by too much mounting condition when measuring electric current, only need to be arranged on tested cable, therefore it is applied widely, be applicable to the environment of unartificial Real-Time Monitoring electric current, energy consumption monitoring can be widely used in, for monitoring systems such as monitoring power distributions.
In embodiments of the present invention, have employed: contactless electromagnetic induction power taking; Non-contact current measuring; The technical thought of induction supplying measure electric current and formation.
Electromagnetic induction technology is mainly applied in current measurement, realize the mode reaching non-contact measurement, the reliance security measured improves greatly, but be limited to the powerup issue of measuring circuit, therefore range of application is little a lot, the application especially in monitoring system is just very limited, measures on the basis of electric current at electromagnetic induction, the current conversion of induction is become the power supply of measuring circuit, solve the application restriction of non-contact measurement.
Induction supplying measure current technique primarily of induction coil part, current measurement circuit part, three major parts compositions such as electric current finishing circuit part.
The main effect of induction coil part produces induced current, when tested electric current by time, the magnetic field induced produces induced current in coil.
Faradic size is measured in the main effect of current measurement circuit part, after there is induced current, and the size of current measurement circuit computation and measurement electric current.
The Main Function of electric current finishing circuit part is that induced current is arranged the operating current become needed for current measurement circuit.
The embodiment of the present invention is powered by contactless induction supplying measure current technique and contactless electromagnetic induction, achieves contactless induction supplying measure electric current, electromagnetism powers; The electrical energy demands that can meet and measure current circuit and electromagnetism is powered.
It should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although show logical order in flow charts, but in some cases, can be different from the step shown or described by order execution herein.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a measuring circuit method of supplying power to, is characterized in that, comprising:
Obtain the measurement electric current in tested loop;
Be electric energy by the measurement current conversion in described tested loop; And
By the electric energy that is converted to described tested loop power supply.
2. measuring circuit method of supplying power to according to claim 1, is characterized in that, is that electric energy comprises by the measurement current conversion in described tested loop:
Be electric energy by electromagnetic induction by the measurement current conversion in described tested loop.
3. measuring circuit method of supplying power to according to claim 2, is characterized in that, is that electric energy comprises by electromagnetic induction by the measurement current conversion in described tested loop:
Detect the variation magnetic field measured electric current and produce; And
Electric energy is converted to by described variation magnetic field.
4. measuring circuit method of supplying power to according to claim 3, is characterized in that, is converted to electric energy comprises by described variation magnetic field:
By induction coil, described variation magnetic field is responded to, obtain induced current; And
Described induced current is converted to the electric energy needed for described tested loop power supply by electric current finishing circuit.
5. a measuring circuit electric supply installation, is characterized in that,
Acquiring unit, for obtaining the measurement electric current in tested loop;
Converting unit, for being electric energy by the measurement current conversion in described tested loop; And
Power supply unit, for the electric energy by being converted to described tested loop power supply.
6. measuring circuit electric supply installation according to claim 5, is characterized in that, it is electric energy by the measurement current conversion in described tested loop that described converting unit is used for by electromagnetic induction.
7. measuring circuit electric supply installation according to claim 5, is characterized in that, described converting unit comprises:
Detection module, for detecting the variation magnetic field measured electric current and produce; And
Modular converter, for being converted to electric energy by described variation magnetic field.
8. measuring circuit electric supply installation according to claim 7, it is characterized in that, described detection module is used for being responded to described variation magnetic field by induction coil, obtain induced current, described modular converter is used for described induced current being converted to electric energy needed for described tested loop power supply by electric current finishing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310714854.1A CN104734366A (en) | 2013-12-20 | 2013-12-20 | Measuring circuit power supplying method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310714854.1A CN104734366A (en) | 2013-12-20 | 2013-12-20 | Measuring circuit power supplying method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104734366A true CN104734366A (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310714854.1A Pending CN104734366A (en) | 2013-12-20 | 2013-12-20 | Measuring circuit power supplying method and device |
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| Country | Link |
|---|---|
| CN (1) | CN104734366A (en) |
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- 2013-12-20 CN CN201310714854.1A patent/CN104734366A/en active Pending
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