公开(公告)号：US3553637A

公开(公告)日：1971-01-05

申请号：US3553637D

申请日：1969-02-27

Applicant: COMPTEURS COMP D

Inventor： HANFF MICHEL ,  JUHEL PIERRE

IPC: B63G7/08 ,  G08B1/08

CPC classification number: G08B1/08 ,  B63G7/08

Abstract: A METHOD FOR MEASURING AND CONTROLLING THE RANGE OF AN UNDERWATER ACOUSTIC EMITTER FOR SWEEPING ACOUSTIC INFLUENCE MINES AND CONSISTING IN TOWING A SOUND SIGNAL EMITTER AT A SUBSTANTIAL DISTANCE ASTERN OF A MINESWEEPER AND IN TOWING AT LEAST ONE SOUND SIGNAL RECEIVER AT A SHORTER DISTANCE ASTERN WHICH DEFINES A SAFETY ZONE WITH RESPECT TO THE MINESWEEPER AND ALSO AT A SHORT AND CONSTANT DISTANCE FROM THE SEA FLOOR. ESSENTIALLY, THE SIGNAL COLLECTED BY THE RECEIVER IS UTILIZED FOR THE PURPOSE OF MODIFYING AT LEAST ONE OF THE SWEEP PARAMETERS SO THAT SAID SIGNAL SHOULD HAVE A VALUE EQUAL AT A MAXIMUM TO A PREDETERMINED VALUE BUT INSUFFICIENT TO INFLUENCE A MINE WHICH IS ASSUMED TO BE LOCATED AT THE SAME POINT AS THE RECEIVER.