VIBRATION STAGE CONTROLLER

摘要

PURPOSE:To control the motion of subject to be tested by using an acceleration detector for control which can be attached at an optional position and a controller which calculates the horizontal and vertical accelerations and the revolving angle speeds round three shafts with the output of said acceleration detector. CONSTITUTION:Vertical accelerations Z1DELTA'' and Z2DELTA'' are detected by a vertical acceleration detector 6 attached to subject to be tested 4 for the pitching produced by a horizontal oscillator to the subject 4. These accelerations are converted into electric signals and amplified by an acceleration amplifier 7. An analog on a prescribed equation and supplies it to a controller 9. Then a signal which eliminates the pitching of the subject 4 is supplied to a vertical oscillator 3 via the controller 9 and a signal line 10 to set the angle acceleration Ztheta'' at ''0''. Thus the horizontal mean acceleration X0 is applied in the horizontal direction while the pitching is suppressed at an optional area of the subject 4. Then the horizontal acceleration of the subject is set approximate to the target acceleration.