Depth sounder repeater structure and method

Details Depth sounder repeater structure and method Depth sounder repeater structure and method

G - Physics

01

S

349/25

G01S 15/08 (2006.01) G01S 15/14 (2006.01)

Patent

CA 1112350

"DEPTH SOUNDER REPEATER STRUCTURE AND METHOD" ABSTRACT OF THE DISCLOSURE A depth sounder repeater providing a remote display of the depth of a body of water digitally or by meter movement, a depth alarm, a lost echo signal, and a meter scale expansion for shallow depth display in conjunction with a ship's sonar, display of "alarm depth" while setting. The depth display may be digital or analog and multiple displays are possible as required. The depth sounder repeater includes a signal pro- cessor for providing signals initiated with the main ultrasonic pulse transmission from the ship's sonar and terminated with the receipt of the first echo of the corresponding main trans- mitted pulses. The signal processor signals may then be used to initiate and terminate production of a train of clock pulse signals which are counted to provide a digital depth display, or alternatively the signal processor signal may be integrated in analog meter display apparatus.

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