CN108710019A - One kind being based on Hall magnetic balance type voltage sensor - Google Patents
One kind being based on Hall magnetic balance type voltage sensor Download PDFInfo
- Publication number
- CN108710019A CN108710019A CN201810596463.7A CN201810596463A CN108710019A CN 108710019 A CN108710019 A CN 108710019A CN 201810596463 A CN201810596463 A CN 201810596463A CN 108710019 A CN108710019 A CN 108710019A
- Authority
- CN
- China
- Prior art keywords
- voltage sensor
- primary coil
- iron core
- hall
- balance type
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000004804 winding Methods 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
The present invention relates to voltage sensor technical fields, it is especially a kind of to be based on Hall magnetic balance type voltage sensor, including iron core, it is wound with primary coil and secondary winding on the iron core, it is provided with to detect the Hall element of core field among the iron core, feedback circuit is constituted by Hall element, further includes the thermistor being mounted on primary coil, the thermistor is negative temperature characteristic.With the above structure, the smaller cost of the present invention, simple structure improve measurement accuracy of the Hall voltage sensor in wide temperature range.Compared to the sensor of not application compensation, the measurement accuracy within the scope of total temperature can be increased to by 1% precision within 0.1~0.5%.
Description
Technical field
The present invention relates to voltage sensor technical fields, especially a kind of to be based on Hall magnetic balance type voltage sensor.
Background technology
The Hall voltage sensor of existing structure is based on magnetic balance principle, by primary side resistance sampling primary current, by original
Sideline is enclosed, and is generated the magnetic field corresponding to original edge voltage, secondary winding is wound on the same iron core, secondary winding is electric current formed
The magnetic field that magnetic field cancellation primary coil generates detects core field by the Hall element among iron core, constitutes feedback circuit, with
The magnetic field that secondary winding electric current generates is set to be equal to the magnetic field that primary coil generates, i.e., so-called magnetic balance.So sensor is defeated
Go out electric current and be proportional to the current signal that voltage to be measured is converted by resistance, ratio value is the number of turns of primary coil and secondary winding
Than.
Due to factors such as power consumption, volumes, primary current value cannot be excessive, ensures there is enough ampere-turn magnetic on iron core again
Logical, general primary coil coiling is all small line footpath, thus multiturn number causes the resistance value of primary coil to be come with respect to primary side sample resistance
Say also not small, coil resistance caused by the resistance variation with temperature of copper enameled wire varies with temperature also can be to sensor
Measurement accuracy generates the influence that can not ignore.
104297565 A of Chinese invention patent application CN disclose a kind of electricity based on FPGA and magnetic balance type sensor
Digitizer is measured, which is connected on power grid, and the converter includes the magnetic balance type Hall current being connected with each other
Sensor and fpga chip, the fpga chip include sequentially connected detection circuit, processing circuit and signal are inhibited to export
Circuit, the magnetic balance type Hall current sensor are connect with power grid, detection circuit and inhibition signal output apparatus respectively.
Invention content
The technical problem to be solved in the invention be to provide it is a kind of in wide temperature range with preferable measurement accuracy
Hall magnetic balance type voltage sensor.
In order to solve the above technical problems, one kind of the present invention being based on Hall magnetic balance type voltage sensor, including iron core, institute
It states and is wound with primary coil and secondary winding on iron core, be provided with to detect the Hall member of core field among the iron core
Part constitutes feedback circuit by Hall element, further includes the thermistor being mounted on primary coil, the thermistor is negative
Temperature characterisitic.
Further, the iron core both sides are fixed with winding bobbin, and the primary coil and secondary winding are wound on respectively
On the winding bobbin of both sides.
Further, the primary coil is wound on by primary coil coiling lead on winding bobbin.
Further, described primary coil one end is provided with primary coil assembly lead.
With the above structure, the present invention use smaller cost, simple structure, improve Hall voltage sensor compared with
Measurement accuracy in wide temperature range.Compared to the sensor of not application compensation, measurement accuracy within the scope of total temperature can be by
1% precision is increased within 0.1~0.5%.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a kind of structural schematic diagram based on Hall magnetic balance type voltage sensor of the present invention.
Fig. 2 is that the present invention is a kind of assembling lead connection diagram based on Hall magnetic balance type voltage sensor.
In figure：1 is primary coil, and 2 be secondary winding, and 3 be Hall element, and 4 be iron core, and 5 be thermistor, and 6 be coiling
Skeleton, 7 assemble lead for primary coil, and 8 be primary coil coiling lead
Specific implementation mode
As shown in Figure 1, one kind of the present invention includes iron core 4 based on Hall magnetic balance type voltage sensor, on the iron core 4
It is wound with primary coil 1 and secondary winding 2, is provided with to detect the Hall element 3 of core field among the iron core 4, is led to
It crosses Hall element 3 and constitutes feedback circuit, further include the thermistor 5 being mounted on primary coil 1, the thermistor 5 is negative
Temperature characterisitic.It is connected on primary coil in circuit pattern, the thermistor that primary side line is wrapped is mounted in mechanical structure, temperature
Degree characteristic be negative temperature characteristic, to compensate positive temperature coefficient copper coil resistance resistance value temperature change, reach entire primary side
Resistance is constant within the scope of working sensor total temperature, smart in the measurement of entire operating temperature range to improve sensor
Degree.
Further, as shown in Fig. 2, 4 both sides of the iron core are fixed with winding bobbin 6, the primary coil 1 and time sideline
Circle 2 is wound on respectively on the winding bobbin 6 of both sides.
Further, the primary coil 1 is wound on by primary coil coiling lead 8 on winding bobbin.
Further, 1 one end of the primary coil is provided with primary coil assembly lead 7.
The smaller cost of the present invention, simple structure improve Hall voltage sensor in wide temperature range
Measurement accuracy.Compared to the sensor of not application compensation, the measurement accuracy within the scope of total temperature can be increased to by 1% precision
Within 0.1~0.5%.
Although specific embodiments of the present invention have been described above, those skilled in the art should be appreciated that this
It is merely illustrative of, various changes or modifications can be made to present embodiment, without departing from the principle and substance of the present invention,
Protection scope of the present invention is only limited by the claims that follow.
Claims (4)
1. one kind being based on Hall magnetic balance type voltage sensor, including iron core, primary coil and secondary side are wound on the iron core
Coil, it is characterised in that：It is provided with to detect the Hall element of core field among the iron core, be made up of Hall element
Feedback circuit, further includes the thermistor being mounted on primary coil, and the thermistor is negative temperature characteristic.
2. described in accordance with the claim 1 a kind of based on Hall magnetic balance type voltage sensor, it is characterised in that：The iron core two
Side is fixed with winding bobbin, and the primary coil and secondary winding are wound on the winding bobbin of both sides respectively.
3. a kind of according to claim 2 be based on Hall magnetic balance type voltage sensor, it is characterised in that：The primary side line
Circle is wound on by primary coil coiling lead on winding bobbin.
4. described in accordance with the claim 1 a kind of based on Hall magnetic balance type voltage sensor, it is characterised in that：The primary side line
Circle one end is provided with primary coil assembly lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810596463.7A CN108710019A (en) | 2018-06-11 | 2018-06-11 | One kind being based on Hall magnetic balance type voltage sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810596463.7A CN108710019A (en) | 2018-06-11 | 2018-06-11 | One kind being based on Hall magnetic balance type voltage sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108710019A true CN108710019A (en) | 2018-10-26 |
Family
ID=63871598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810596463.7A Pending CN108710019A (en) | 2018-06-11 | 2018-06-11 | One kind being based on Hall magnetic balance type voltage sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108710019A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4992766A (en) * | 1988-07-25 | 1991-02-12 | Honda Giken Kogyo Kabushiki Kaisha | Linear actuator |
| JP2010223913A (en) * | 2009-03-25 | 2010-10-07 | Panasonic Electric Works Co Ltd | Noncontact position sensor |
| CN102004513A (en) * | 2009-09-03 | 2011-04-06 | 北京中科信电子装备有限公司 | Application of closed-loop Hall current sensor in high-energy big beam current ion implanter filament supply |
| CN203658443U (en) * | 2013-12-25 | 2014-06-18 | 深圳市合兴加能科技有限公司 | Hall sensing device and three-phase current balance detection circuit |
| CN104297565A (en) * | 2014-10-24 | 2015-01-21 | 上海交通大学 | Electric quantity digital converter based on FPGA and magnetic balance type Hall sensor |
| CN208224351U (en) * | 2018-06-11 | 2018-12-11 | 宁波星成电子股份有限公司 | One kind being based on Hall magnetic balance type voltage sensor |
-
2018
- 2018-06-11 CN CN201810596463.7A patent/CN108710019A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4992766A (en) * | 1988-07-25 | 1991-02-12 | Honda Giken Kogyo Kabushiki Kaisha | Linear actuator |
| JP2010223913A (en) * | 2009-03-25 | 2010-10-07 | Panasonic Electric Works Co Ltd | Noncontact position sensor |
| CN102004513A (en) * | 2009-09-03 | 2011-04-06 | 北京中科信电子装备有限公司 | Application of closed-loop Hall current sensor in high-energy big beam current ion implanter filament supply |
| CN203658443U (en) * | 2013-12-25 | 2014-06-18 | 深圳市合兴加能科技有限公司 | Hall sensing device and three-phase current balance detection circuit |
| CN104297565A (en) * | 2014-10-24 | 2015-01-21 | 上海交通大学 | Electric quantity digital converter based on FPGA and magnetic balance type Hall sensor |
| CN208224351U (en) * | 2018-06-11 | 2018-12-11 | 宁波星成电子股份有限公司 | One kind being based on Hall magnetic balance type voltage sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103592490B (en) | A kind of high accuracy electronic compensation type current transformer | |
| CN107037251A (en) | Current sensor and the device for measuring electric current | |
| CN103620421B (en) | Current sensing means and voltameter | |
| CN110412336B (en) | Detection probe of high-precision current sensor | |
| CN208224351U (en) | One kind being based on Hall magnetic balance type voltage sensor | |
| CN105842511A (en) | Dual-coil anti-magnetic-type current transformer | |
| CN210803568U (en) | Alternating current sensor | |
| CN201749142U (en) | Double-coil current sensor | |
| CN203606413U (en) | High-accuracy electronic compensation type current transformer | |
| CN203164408U (en) | Current transformer error testing circuit | |
| CN108710019A (en) | One kind being based on Hall magnetic balance type voltage sensor | |
| CN209167415U (en) | The diverter unit of high-accuracy heavy-current detection | |
| CN114512313B (en) | Current transformer with rated secondary current lower than 1A | |
| CN111198298A (en) | Data acquisition device suitable for multiple current sensor | |
| CN210200530U (en) | Current transformer based on PCB hollow coil | |
| CN212723044U (en) | Closed-loop current transformer | |
| CN108362925B (en) | Zero-flux large-current detection system and method for magnetic field cancellation of double-8-shaped three-wire | |
| CN106707015A (en) | High-performance self-calibrated photoelectric combined type current transformer and self-calibration method thereof | |
| KR100828737B1 (en) | Linear variable differential transformer | |
| CN101477145B (en) | AC great current sensor | |
| CN220795433U (en) | Differential harmonic leakage current detection device | |
| CN205656225U (en) | Invariable amplitude direct current pulse signal measuring circuit | |
| CN212111594U (en) | Equivalent capacitance standard device | |
| CN219811394U (en) | Magnetic core and coil assembly based on TMR weak current sensor | |
| CN219039203U (en) | Anti-electromagnetic interference rogowski coil current sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |