Patent ID: 8117914
Filing Date: 2012-02-21
Classification: G01C,G01P

Abstract:
1. An inertia force sensor comprising a detection element having an acceleration detection section, the detection element has a fixation section having a weight section via a connecting section, an opposed substrate opposed to the weight section, and opposed electrodes formed at the respective opposed face of the weight section and the opposed substrate, the acceleration detection section is structured so that a status change caused by movability of the weight section due to distortion of the connecting section is detected by the opposed electrode to thereby detect an inertia force, wherein: the connecting section has a thickness thinner than a thickness of the weight section, and the detection element has two orthogonal arm sections obtained by connecting first arm sections to second arm sections so that the first arm sections are orthogonal to the second arm sections and a support section supporting the two first arm sections, a tip end of the second arm section has the weight section, the connecting section is configured by the first arm section, and the first arm section has a thickness thinner than a thickness of the second arm section.