| 摘要 |
FIELD: measurement technology. SUBSTANCE: system measuring acceleration vector carries out determination of projections of acceleration on to body axes of flying vehicle in unspecified point of it. In proposed system traditional measurements with the aid of accelerometers are substituted by indirect measurements by readings of more accurate instruments - gyro integrators placed on gyro stabilized platform. Possibility of measurement of acceleration vector in projections on to body axes of flying vehicle at any point is achieved by account of angular movement of flying vehicle with the use of unit of pickups of angular speed, unit of processing of angular speeds, unit of vector multiplication and unit of double vector multiplication. Conversion of output signals of gyro integrators to accelerations in body axes coordinate system is provided by availability of unit of processing of linear speeds, device determining orientation and device of re-calculation of vector projections from inertial frame to projections on body axes. Adder forms output signal of system of summation of accelerations caused by translational and rotary motions of flying vehicle. Selection of point of flying vehicle subject to test by measurement system is accomplished by setting of specific values into master unit of coordinates of measurement point. Advantage of proposed system measuring acceleration is its versatility and more favorable measurement mode. It can determine accelerations in any sections of flying vehicle. But obtained measurements are distorted in smaller degree by components from motion of fuselage of flying vehicle as resilient body and from local deformations. EFFECT: improved efficiency of system. 2 dwg, 1 tbl |
