Patent ID: 9146254
Filing Date: 2015-09-29
Classification: B81B,G01P

Abstract:
1. A dynamic sensor comprising: a plurality of supports; a plurality of beams including a plurality of piezoresistive elements provided therein; a weight that is oscillatably supported on the supports by the beams and is arranged to detect a stress occurring in the beams due to oscillation of the weight to detect a physical characteristic based on an applied force; wherein the weight includes a first weight portion and a second weight portion which are aligned along a first axis direction and a bridge portion which is provided at an approximate center of the first weight portion and the second weight portion in a second axis direction perpendicular to the first axis direction and which connects the first weight portion and the second weight portion; the supports extend along the second axis direction such that the bridge portion of the weight is located therebetween, and so as to be spaced apart from the weight; and the beams are provided on both sides of the bridge portion along the second axis direction and extend along the first axis direction to directly connect the first weight portion to the support and the second weight portion to the support.