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Fluxgate Current Sensor Based on H-Bridge

2023· article· en· W4385831797 on OpenAlexaff
Xinliang Tian, Qiyu Qian, Wei Fu

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicMagnetic Field Sensors Techniques
Canadian institutionsMD Precision (Canada)
Fundersnot available
KeywordsFluxgate compassExcitationCurrent sensorCurrent (fluid)Electromagnetic coilElectrical engineeringResistorTopology (electrical circuits)PhysicsVolt-amperePower (physics)Electronic engineeringComputer scienceEngineeringVoltageConstant power circuitMagnetic fieldSwitched-mode power supplyMagnetometerQuantum mechanics

Abstract

fetched live from OpenAlex

In order to solve the technical problem that the detection accuracy of electric vehicle BMS current sensor is not high enough to accurately measure large current and small current at the same time, a design scheme of a fluxgate current sensor with a single excitation core was provided. The topology design and working principle of the scheme were expounded, and the advanced nature of the scheme was proved. Compared with the current scheme, the H-bridge circuit was used to drive the excitation coil, which enabled the power supply of a single power supply and simplified the design of the power supply for the sensor. Moreover, an excitation detection circuit with double measurement resistors was constructed, which equivalently converted the excitation current ie flowing in the excitation coil into the difference between the two currents $\mathrm{i}_{\mathrm{e}1}$ and $\mathrm{i}_{\mathrm{e}2}$, and obtained the average value of the excitation current through the equivalent current difference $\mathrm{i}_{\mathrm{e}1}-\mathrm{i}_{\mathrm{e}2}$, thereby eliminating the zero drift of the current sensor, so that the small current identification and measurement accuracy of the current sensor can be improved.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.746
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.023
GPT teacher head0.256
Teacher spread0.233 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designNot applicable
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations3
Published2023
Admission routes1
Has abstractyes

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