ACCELERATION SENSOR AND ACCELEROMETER

An acceleration sensor (1) and accelerometer. The acceleration sensor comprises a base (01), a cantilever beam (02) and a mass (03) fixed on the base (01) through the cantilever beam (02). The mass (03) has a shape that is symmetric about its center. The cantilever beam (02) comprises four L-shaped arms (021), wherein a long arm of each of the L-shaped arms (021) is connected to the base (01), a short arm of the L-shaped arm (021) is connected to the mass (03), and any two adjacent L-shaped arms (021) are in an axially symmetric arrangement. As the cantilever beam (02) is composed of four L-shaped arms (021) that are disposed symmetrically and the four L-shaped arms (021) are restrained by one another transversely, the cantilever beam (02) has high resistance to transverse interference and is simple in structure and thus easy to manufacture. L'invention concerne un capteur d'accélération (1) et un accéléromètre. Le capteur d'accélération comprend une base (01), une poutre en porte-à-faux (02) et une masse (03