Abstract
A dual-axis acceleration detection element comprises a first detection element, a second detection element and a stationary unit. The first detection element is movable relative to the second detection element. The second detection element is movable relative to the stationary unit. The relative movements take place on different axes to detect acceleration on two different axes. The first detection element and the second detection element are interposed by corresponding detection electrodes, and the second detection element and the stationary unit also are interposed by other corresponding detection electrodes. Hence when the relative movements occur among the first and second detection elements and the stationary unit, overlapped areas of the detection electrodes change to generate and output a capacitance difference, thereby acceleration alteration can be detected.