The invention provides a uniaxial acceleration sensor device, which is used for solving the problems of high design requirements, poor
shielding effect and poor detection precision of an accelerationsensor device used for detecting the acceleration signals of a high-speed
train bogie in the prior art. The uniaxial acceleration sensor device comprises an acceleration sensor, a
signal cable and a connector, wherein the
signal cable is electrically connected with the acceleration sensor and the connector; the acceleration sensor comprises a printed board
assembly, an inner layer insulation case,a shielding cover, an outer layer insulation case and a casing in sequential arrangement from inside to outside; a clamp groove is formed in the inner layer of the inner layer insulation case; the printed board
assembly is arranged in the clamp groove and is respectively and fixedly connected with the shielding cover and the
signal cable; and the signal cable sequentially passes through a
tail pipe of the inner layer insulation case, a through hole of the shielding case, a
tail pipe of the outer layer insulation case and a
tail pipe of the case to be electrically connected with the connector.The uniaxial acceleration sensor device has the advantages that the precision of the installation position of a circuit board is high; and high reliability, high insulation
voltage withstanding gradeand high protection grade are realized.