本文源自:金融界
金融界 2024 年 9 月 15 日消息，天眼查知识产权信息显示，金卡智能集团股份有限公司取得一项名为“科氏流量计的驱动信号调整方法和科氏流量计“，授权公告号 CN118500492B，申请日期为 2024 年 7 月。
专利摘要显示，本申请公开了一种科氏流量计的驱动信号调整方法和科氏流量计，科氏流量计包括测量管、拾取传感器和激振器，该方法包括：获取任一路拾取传感器信号并进行正交解调，获取两组解调信号；构建平面直角坐标系，获取平面直角坐标系中至少三个样本点的坐标，样本点以两组解调信号为横纵坐标，相邻样本点间隔相同的采样周期；依照采样时间的先后，以相邻样本点作为向量的起点和终点，获得两个向量；使用向量叉乘，获得向量夹角；根据向量夹角和采样周期获得角频率差，依据角频率差对驱动信号的激励频率调整，使激励频率逼近测量管的固有频率。本申请能够调整驱动信号的激励频率以使激励频率快速逼近测量管的固有频率，从而提升科氏流量计的测量精度。
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5款流量卡评测| 电信超低月租大流量卡即将下架VS移动19元100G+100分钟低价流量卡，限时上架！再看《墨雨云间》才明白，为何沈玉容会主动送给婉宁一根菊花簪？
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