Piezoelectric six-dimension acceleration sensor based on 9-SPS parallel mechanism
An acceleration sensor, 9-SPS technology, applied in the direction of acceleration measurement using inertial force, can solve the problems of not being suitable for accurate measurement of high-frequency vibration signals, narrow frequency response range, and high patch requirements, achieving high sensitivity and small size , the effect of light weight
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[0017] This embodiment is a piezoelectric six-dimensional acceleration sensor based on a 9-SPS parallel mechanism such as figure 1 , figure 2 , image 3 As shown, it includes a shell 1, a mass block 2, 9 piezoelectric ceramics 3, and 18 flexible ball hinges 4. The shell 1 is connected to one end of the piezoelectric ceramics 3 through the flexible ball hinges 4, and the piezoelectric ceramics 3 The other end is connected with a mass block 2 through a flexible ball hinge 4 . Wherein, the piezoelectric ceramic 3 is pasted on the flexible ball joint 4 through the resin glue 5 . The mass block 2 is a cube and is located in the center of the casing. There are three piezoelectric ceramics 3 respectively between the upper surface, front surface, and side surface of the mass block 2 and the upper wall, front wall, and side wall of the housing 1 . In the initial situation, the three groups of piezoelectric ceramics (3 in each group) are in an orthogonal relationship, and the lengt...
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