| 摘要 |
1. In a homing torpedo having A. A RIGID ELONGATED BODY HAVING AN OUTER SHELL AND HAVING FRONT AND REAR ENDS, B. A DIRECTIONAL TRANSDUCER HAVING AN AXIS OF DIRECTIONALITY, SAID TRANSDUCER BEING DISPOSED WITHIN SAID SHELL AND ROTATABLY CARRIED BY THE RIGID BODY ADJACENT ITS FRONT END, C. MEANS FORMING AN ACOUSTIC WINDOW IN THE FRONTAL SURFACE OF THE OUTER SHELL OF THE TORPEDO OPERATIVELY ASSOCIATED WITH THE TRANSDUCER TO TRANSMIT AND RECEIVE ACOUSTIC SIGNALS, D. MEANS OPERATIVELY ASSOCIATED WITH SAID TRANSDUCER FOR SENDING AN ACOUSTIC SIGNAL TO A TARGET, E. MEANS OPERATIVELY ASSOCIATED WITH SAID TRANSDUCER FOR RECEIVING AN ECHO-SIGNAL RETURNED FORM THE TARGET AND FOR PRODUCING AN ERROR SIGNAL CORRESPONDING TO THE DEVIATION BETWEEN TARGET AND THE AXIS OF DIRECTIONALITY, F. STEERING MEANS CONTROLLED BY SAID ERROR SIGNAL TO CHANGE THE TORPEDO HEADING IN A DIRECTION TENDING TO RESTORE ALIGNMENT OF THE TARGET AND THE AXIS OF DIRECTIONALITY OF THE TRANSDUCER, THE IMPROVEMENTS, IN COMBINATION, COMPRISING; G. MEANS SUPPORTING SAID TRANSDUCER FOR ROTATION SOLELY ABOUT A VERTICAL AXIS OF ROTATION, H. MEANS RIGIDLY COUPLED TO THE TORPEDO BODY FOR SENSING THE ANGULAR VELOCITY AT WHICH THE TORPEDO HEADING CHANGES AND FOR PRODUCING A TRANSDUCER TURNING SIGNAL HAVING AN AMPLITUDE AND SIGNAL POLARITY CORRESPONDING TO THE MAGNITUDE AND ANGULAR DIRECTION OF SAID ANGULAR VELOCITY, AND OPERABLE INDEPENDENT OF MOVEMENT OF SAID TRANSDUCER, I. A REVERSIBLE MOTOR DRIVINGLY CONNECTED TO SAID TRANSDUCER TO TURN SAME ABOUT SAID AXIS OF ROTATION, J. AND CONTROL MEANS CONNECTED TO OPERATE SAID REVERSIBLE MOTOR, SAID CONTROL MEANS BEING RESPONSIVE TO SAID TRANSDUCER TURNING SIGNAL TO TURN THE TRANSDUCER IN AN ANGULAR DIRECTION OPPOSITE TO THE ANGULAR DIRECTION IN WHICH THE TORPEDO HEADING CHANGES AND AT AN ANGULAR VELOCITY PROPORTIONAL TO AND SLOWER THAN THE ANGULAR VELOCITY OF HEADING CHANGE. |
