公开(公告)号：US20150204690A1

公开(公告)日：2015-07-23

申请号：US14422375

申请日：2013-08-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Sho Shimada ,  Ryota Sudo ,  Hideyuki Murakami ,  Shinjiro Ueda

IPC: G01C25/00 ,  G01P21/00 ,  G01C19/5726 ,  G01P15/097 ,  G01P15/08

CPC classification number: G01C25/005 ,  G01C19/5614 ,  G01C19/5726 ,  G01C19/5776 ,  G01P3/486 ,  G01P15/0888 ,  G01P15/097 ,  G01P21/00

Abstract: A physical quantity sensor includes a detection circuit that outputs a detection value indicating a physical quantity applied to a detecting element and a correction processor that corrects the detection value to output a corrected value. The correction processor causes the corrected value to be substantially 0 (zero) if all of conditions that an absolute value of a time-differentiated value of the detection value is not larger than a predetermined differential threshold and that an absolute value of the corrected value is not larger than a predetermined output threshold are satisfied. This physical quantity sensor prevents the output signal from changing due a temperature change in spite of a small number of components

Abstract translation: 物理量传感器包括检测电路，其输出表示施加到检测元件的物理量的检测值，以及校正处理器，其校正检测值以输出校正值。 如果检测值的时间微分值的绝对值不大于预定的差分阈值且校正值的绝对值是否为绝对值，则校正处理器使校正值基本为0（零） 不大于预定输出阈值。 该物理量传感器防止由于温度变化而导致的输出信号变化，尽管组件数量很少

公开(公告)号：US09885586B2

公开(公告)日：2018-02-06

申请号：US14422375

申请日：2013-08-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Sho Shimada ,  Ryota Sudo ,  Hideyuki Murakami ,  Shinjiro Ueda

IPC: G01C25/00 ,  G01C19/5776 ,  G01C19/5726 ,  G01P15/08 ,  G01P15/097 ,  G01P21/00 ,  G01C19/5614 ,  G01P3/486

CPC classification number: G01C25/005 ,  G01C19/5614 ,  G01C19/5726 ,  G01C19/5776 ,  G01P3/486 ,  G01P15/0888 ,  G01P15/097 ,  G01P21/00

Abstract: A physical quantity sensor includes a detection circuit that outputs a detection value indicating a physical quantity applied to a detecting element and a correction processor that corrects the detection value to output a corrected value. The correction processor causes the corrected value to be substantially 0 (zero) if all of conditions that an absolute value of a time-differentiated value of the detection value is not larger than a predetermined differential threshold and that an absolute value of the corrected value is not larger than a predetermined output threshold are satisfied. This physical quantity sensor prevents the output signal from changing due a temperature change in spite of a small number of components.