144式是(14-22kHz)「探照燈」式搜索聲納，大約16度寬的波束在操作員控制之下左、右搜索。找到目標後操作員用人手將波束對準目標追蹤。由於波束是俯仰是固定(往下16 度)，所以，迫近到目標某個距離時，波束會在目標上方掠過。這個「與目標失去聯繫」(R= Range at loss of contact) 可以用來估算目標的深度(D) ... (D= R * sin 16deg)。二次大戰早期的深水炸彈引信就是用這個方式來設定引爆深度。
144式是(14-22kHz)「探照燈」式搜索聲納，大約16度寬的波束在操作員控制之下左、右搜索。找到目標後操作員用人手將波束對準目標追蹤。由於波束是俯仰是固定(往下16 度)，所以，迫近到目標某個距離時，波束會在目標上方掠過。這個「與目標失去聯繫」(R= Range at loss of contact) 可以用來估算目標的深度(D) ... (D= R * sin 16deg)。二次大戰早期的深水炸彈引信就是用這個方式來設定引爆深度。
This instrument was designed to visually record sounds received by the oscillator and provide an accurate range plot on paper. At the appropriate time, as determined by adjustments made to the recorder settings, it automatically actuated the release of depth charges or the firing of ahead-thrown charges. Specially treated paper was driven by a gear mechanism and marked with a stylus. This paper was impregnated with a solution of potassium iodide and starch. Passage of electrical current through the paper from stylus to roller released 'free' iodine. The iodine was then deposited on the paper thus making a record in the form of a brown mark. When installing fresh paper records, it was imperative to minimize the amount of time that the paper was exposed to air. Within the recorder, the paper roll was stored in an airtight container known as a tank.Each roll of paper was 30 yards long and a black warning mark would appear on the right hand edge signifying the approach of the end of the roll. After its appearance, there was still sufficient paper remaining to complete the attack. Alternately, yellow coloured, cadmium-iodide paper could be used in the range recorder. The range recorder was only switched on when investigating a contact and during attack.
(Range vs Time)
Bearing Recorder
This instrument indicated the gun bearing when carrying out an ahead-thrown weapon attack against a submarine. An adjustment was provided to make allowance for ship's own speed and the sinking time of the charges. The bearing recorder was used in conjunction with the range recorder from which it obtained the necessary impulses for the paper drive motor.
This paper was impregnated with a solution of potassium iodide and starch. Passage of electrical current through the paper from stylus to roller released 'free' iodine. The iodine was then deposited on the paper thus making a record in the form of a brown mark.
so this paper is the "screen" before the CRT
小貓不會作模型，小貓只愛玩模型；看似小貓玩模型，其實模型玩小貓： A B 補土白膠條，樹脂改套蝕刻片；凹線凸線凹凸線，乾磨水磨銼刀磨； 水性油性消光漆，乾掃手掃噴槍掃；模型一盒三百幾，零件一堆三千幾； 多買多作進步多，買了不作口水多；花錢耗時傷精神，小貓是隻敗家喵。
英國聲納的工作模式
Posted - 05/14/2009 : 15:10:10
