In-site calibration device applicable to piezoelectric thrust vectoring frame

The invention provides an in-site calibration device applicable to a piezoelectric thrust vectoring frame, which is applied to a thrust test system, and particularly relates to an attitude and orbit control engine thrust vector measurement system. The device is formed by a loading cylinder, a column type normalized force sensor, a loading rod, a universal pull ring, a concave connector and a thrust joint bearing. The normalized force sensor adopts a column type structure form, the normalized force sensor is connected with the loading rod by the universal pull ring, and the thrust joint bearingis adopted for force transfer on a force measuring instrument. The device has the advantages that the centering of the whole calibration device is good, and a flexible connection manner is adopted, so that additional torque in calibration can be effectively avoided and the calibration repeatability of the thrust frame can be remarkably improved. 本发明提出了种用于压电式推力矢量架现场标校的装置，应用于推力测试系统中，特别涉及姿轨控发动机推力矢量测量系统。该发明由加载油缸、柱式标准力传感器、加载杆