The invention relates to the technical field of accelerometers, and discloses a
quartz vibrating beam
accelerometer sensitive
assembly. The
assembly comprises an outer frame, a flexible supporting piece, an isolation frame, an outer connecting piece, an inner connecting piece, a bracket, a detection
mass block and a vibrating beam, the isolation frame is positioned in the outer frame; the outer side of one end of the isolation frame is connected with the inner side of the outer frame; the inner side of the other end of the isolation frame is connected with the bracket through inner connectors;one end of the vibration beam is connected with the detection
mass block, the other end of the vibration beam is connected with the support, flexible supporting pieces are arranged between the upperend face of the support and the lower end face of the detection
mass block and symmetrically distributed on the two sides of the vibration beam, the vibration beam and the flexible supporting pieces are not coplanar, and the flexible supporting pieces on the two sides are coplanar. Therefore, by additionally arranging the isolation frame and related components, a vibration
beam energy dissipationchannel can be blocked, a double-interdigital structure is simplified into a single-interdigital structure, and a
narrow gap is avoided. Moreover, the isolation frame can block the introduction of external thermal stress, thereby improving the temperature environment adaptability of the
accelerometer.