SNR improvement by selective modulation
    5.
    发明申请
    SNR improvement by selective modulation 审中-公开
    通过选择性调制的SNR改善

    公开(公告)号:US20050057242A1

    公开(公告)日:2005-03-17

    申请号:US10955507

    申请日:2004-10-01

    申请人: William Swain

    发明人: William Swain

    IPC分类号: G01R15/18 H04B7/10

    CPC分类号: G01R15/186 Y10T29/4902

    摘要: The accuracy of certain sensors is improved by improving their signal to noise ratio (SNR) in the presence of an interfering noise. Sensors were discovered which have a SNR which substantially changes when an operating parameter is selectively modulated to different magnitudes. In the simplest form, the sensor is operated where it is both stable and close to its best SNR. This is usually faster and less costly, but the noise is never completely eliminated. This invention has first been applied to Swain Meter® type clamp-on DC ammeters. Some results are good—the benefit in SNR is between 2 and 4. ® Swain Meter is a registered Trademark of the William H. Swain Co.

    摘要翻译: 通过在存在干扰噪声的情况下改善其信噪比(SNR)来提高某些传感器的精度。 发现传感器具有当操作参数被选择性地调制到不同的幅度时基本上改变的SNR。 在最简单的形式中,传感器在稳定且接近其最佳SNR的情况下运行。 这通常更快,成本更低,但是噪音从未完全消除。 本发明首先应用于Swain Meter(R)型夹式直流电流表。 一些结果是好的 - SNR的好处在2到4之间。(R)Swain Meter是William H. Swain Co.的注册商标。