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DRV5055:Sensors forum

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Prodigy 10 points
Part Number: DRV5055
Other Parts Discussed in Thread: TMAG5170, TMAG5273

DRV5055 A3QLPGM を用いて磁石の位置を検出したいと考えています。

検出したい分解能密度の範囲は0.01mT～0.2mTと小さい信号になります。

そのため、導出ループと組み合わせて使用​​することを考えています。

このように小さい信号を検出するために推奨されるループはございますでしょうか。

または、信号が小さいでも精度良く感知できるセンサーはございますでしょうか。

よろしくお願いいたします。

  • +1
    TI__Genius 15290 points

    Thank you for reaching out on E2E.  I hope the translation works out correctly.  I understand you are trying to measure magnetic fields and are looking for a sensor with sensitivity for small fields.  I would recommend using our magnetic proximity tool to evaluate the strength of the field from a particular magnet.  The tool can be downloaded here:

    https://www.ti.com/lit/zip/slyr071

    Either TMAG5170 or TMAG5273 are 3D sensors capable of detecting all components of the magnetic field.  For example, with averaging fully enabled, the input referred noise of TMAG5170 is 14 uT and LSB size of 1.5 uT / LSB.  

    Thank you,

    Scott Bryson