Differential and absolute accelerometrical apparatus for inertial control and stabilizing and vibration measurement

摘要

936,297. Measuring electrically. T. C. WARNER. Nov. 9, 1960 [Dec. 1, 1959], No. 40722/59. Class 40 (1). [Also in Groups XL (a), XL (b) and XL (c)] A discharge tube for measuring acceleration comprises two loops 11 of quartz fibre mounted on grid 15 so as to be deflected by acceleration of the tube along its axis and thereby modulate the electron current in the tube. The tube may be used in combination with photoelectric devices for measuring acceleration (see Group XL (b)) in (a) rocket trajectory control, by measuring the centrifugal force on the rocket due to its trajectory and its linear acceleration, comparison with the desired trajectory being used in a control servo for automatic correction, (b) navigation of aircraft, measurement of centrifugal force giving position for great circle flights; (c) ship stabilizer control gear, rolling sensed by measuring centrifugal forces being corrected automatically; (d) measurement of stresses imposed on aircraft in flight; and (e) vibration indication in helicopters.