超導量子干涉元件(Superconducting Quantum Interference Device,SQUID)在生物醫學方面為何能使用的如此頻繁，因為SQUID最低能感測到的磁場大小為5×10−18 T，對磁訊號的感測非常靈敏，故運用在量測微量磁訊號的系統也能夠有效地提升其靈敏度。
但因為SQUID在製成上需要較高的技術層面，成本與售價自然需要較高的金額。本研究針對SQUID對磁訊號的靈敏度開發雙通道量測系統，運用鐵芯能夠傳導磁通的原理，讓磁訊號能經鐵芯傳導不同頻率的磁訊號給SQUID，達成雙頻率通道的感測系統，且不失SQUID對微量磁訊號的高靈敏度。
本研究的雙頻通道系統也能應用在不同的感磁架構，本論文以振動樣品磁力儀的應用為例，已經能成功量出不同頻率下磁流體在飽和磁場下的飽和磁化量，達到提升效率的目的。

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