Hvad er fluxgate-strømsensor og dens funktionsprincip?
Arbejdsprincippet for højpræcision fluxgate strømsensor:
Under påvirkning af positiv og negativ excitationsstrøm bruges den let-mætte magnetiske kerne til at få den magnetiske kernes induktans til at ændre sig med størrelsen af excitationsstrømmen, så magnetkernens magnetiske flux ændres kontinuerligt.
Det fluxgate current sensor uses the non-linear relationship between the magnetic induction intensity and the magnetic field intensity of the high magnetic permeability core in the measured magnetic field under the saturation excitation of the alternating magnetic field to measure the weak magnetic field. This physical phenomenon seems to be a “gate” to the measured ambient magnetic field. Through this “gate”, the corresponding magnetic flux is modulated and an induced electromotive force is generated. This phenomenon is used to measure the magnetic field generated by the current, so as to indirectly achieve the purpose of measuring the current.
Grundlæggende principper for Fluxgate-sensordrift
I det magnetiske kredsløb, for at detektere et magnetfelt lig med nul magnetisk flux, skal den sekundære spole exciteres af den nødvendige strøm. I omgivelser med nul magnetisk flux styrkes sensorens strøm gennem den sekundære spole, som bekræftes at være proportional med den målte primære strøm. . Ip=Ns. Is ferromagnetiske kerne og hjælpespolen danner en mættet induktor. I tilfælde af nul magnetisk flux er detekteringen af sensorens magnetiske kredsløb baseret på ændringen i induktansen af induktoren.
Hangzhi Precision - En af de bedste producenter af fluxgate strømsensorer
Hangzhi præcision is one of the best suppliers who manufacture top performance and cost effective fluxgate strømsensor. Hangzhi zero fluxgate strømtransducere and current sensors have high accuracy, linearity & stability, and low temperature drift and zero drift. More details about the Multi point nul flux gate teknologi er tilgængelig i artiklen skrevet af Hangzhi-specialister og offentliggjort på IEEE-webstedet.
Few series of AC / DC current transducer products with different accuracy levels and output signal types are developed to meet various applications in different industries.
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Hangzhi AC / DC zero flux gate current transformers have been widely used in electrical equipment, medical equipment, battery testing equipment and calibration equipment etc. Especially, they are well recognized by national R&D institutes, national metrology institutes, and global medical and electrical manufacturers