T O P I C R E V I E W |
iamhappy |
Posted - 05/14/2009 : 15:10:10 英國以前有幾種聲納 174型--搜索 162型--識別 170型--攻擊 請問它們的工作模式? |
10 L A T E S T R E P L I E S (Newest First) |
fer-de-lance |
Posted - 05/21/2009 : 09:45:49 quote: so this paper is the "screen" before the CRT
CRT?
SISP = Sodium Iodide / Starch Paper ;P
其實戰情室內的反潛寶貝是叫 DRT (Dead Reckoning Tracer) ... 以前制式裝備就是 NC-2 ...
幾年前才開始換裝 CADRT (Computer Aided Dead Reckoning Tracer) ... 用 CRT 代替圖紙 |
rockitten |
Posted - 05/21/2009 : 08:18:41 quote: Originally posted by fer-de-lance
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。 |
fer-de-lance |
Posted - 05/20/2009 : 23:59:39 Range Recorder
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.
(Bearing vs Time)
USN equivalents:
http://www.hnsa.org/doc/sonar/chap12.htm |
dasha |
Posted - 05/20/2009 : 14:05:56 印出來或劃出來的吧.
吉屋出售 台北市基隆路二段套房,近台大及捷運,附近有黃昏市場,生活機能便利. http://www.hbhousing.com.tw/web/A002/index.asp?module=search&file=Detail&No=Z087382%20%20%20&AID=A002 台北縣板橋市大觀路一二樓公寓,接近國小至大學各級學校及公車總站,離捷運及板橋車站不遠. 詳情請洽0931043559田小姐 |
iamhappy |
Posted - 05/20/2009 : 13:52:57 quote: Originally posted by fer-de-lance
Norman 的書比較少介紹50-60年代的老東西。那些需要找英國官方出版的聲納發展史。
162式"Cockshafer"是掃描海底的聲納,可以在淺水用來偵測坐底的潛艇。
174式和有穩定儀的164射控聲納聯合起來構成166式聲納組合。基本上是二次大戰的144Q / 147組合的改良型。
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。
後來皇家海軍發展「射控聲納」來配合向前發射的反潛武器。144式增設Q 裝置(操作頻率38.5Hz)將垂直波束增至65度,水平波束減至3-5度。這個扇狀波束也可以由操作員控制左、右搜索。更寬的垂直波束主要是對付能夠潛得更深的德軍潛艦。
配合144Q 的147式測深度聲納操作頻率是50kHz。其水平波束寬60度,垂直波束窄,只有3-5度,所以能夠在準確地測出目標的深度。兩個聲納聯合起來就可以準確定出目標的3D 位置。目標資料是用化學圖紙展示。有了這個目3D 位置標資料就可以準確指揮三聯裝的SQUID 反潛迫擊砲射擊,並且設定定時引信,讓快速下沉的砲彈達到指定深度時爆發。SQUID 是二次大戰成功率最高的反潛武器。裝配兩組SQUID砲的Loch 級巡防艦平均每次六管齊發時可以達到驚人的40% 命中率!
戰後發展,射程更長的LIMBO 反潛迫擊砲就是用166式聲納組合指揮射擊。174式基本上就是改良的144Q,而164則是改良自147式的測深度聲納。
感謝啊~~ 可否再請教"目標資料是用化學圖紙展示"是怎麼展示?
|
Captain Picard |
Posted - 05/20/2009 : 11:57:59 http://web.ukonline.co.uk/aj.cashmore/.features/.electronics/uk-sursonar2.html
http://www.middle-watch.com/sonar.htm
一些參考資料
=========================
棒球是假國球
政治是真全民運動 |
fer-de-lance |
Posted - 05/20/2009 : 05:21:37 Norman 的書比較少介紹50-60年代的老東西。那些需要找英國官方出版的聲納發展史。
162式"Cockshafer"是掃描海底的聲納,可以在淺水用來偵測坐底的潛艇。
174式和有穩定儀的164射控聲納聯合起來構成166式聲納組合。基本上是二次大戰的144Q / 147組合的改良型。
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。
後來皇家海軍發展「射控聲納」來配合向前發射的反潛武器。144式增設Q 裝置(操作頻率38.5Hz)將垂直波束增至65度,水平波束減至3-5度。這個扇狀波束也可以由操作員控制左、右搜索。更寬的垂直波束主要是對付能夠潛得更深的德軍潛艦。
配合144Q 的147式測深度聲納操作頻率是50kHz。其水平波束寬60度,垂直波束窄,只有3-5度,所以能夠在準確地測出目標的深度。兩個聲納聯合起來就可以準確定出目標的3D 位置。目標資料是用化學圖紙展示。有了這個目3D 位置標資料就可以準確指揮三聯裝的SQUID 反潛迫擊砲射擊,並且設定定時引信,讓快速下沉的砲彈達到指定深度時爆發。SQUID 是二次大戰成功率最高的反潛武器。裝配兩組SQUID砲的Loch 級巡防艦平均每次六管齊發時可以達到驚人的40% 命中率!
戰後發展,射程更長的LIMBO 反潛迫擊砲就是用166式聲納組合指揮射擊。174式基本上就是改良的144Q,而164則是改良自147式的測深度聲納。
|
iamhappy |
Posted - 05/19/2009 : 14:09:47 quote: Originally posted by 路過的人
Norman Friedman 的 "The Naval Institute Guide to World Naval Weapon systems" 5th edition 有對於 Type 162/162M 及 Type 170 的介紹
感謝! |
路過的人 |
Posted - 05/16/2009 : 12:40:27 Norman Friedman 的 "The Naval Institute Guide to World Naval Weapon systems" 5th edition 有對於 Type 162/162M 及 Type 170 的介紹 |
dasha |
Posted - 05/16/2009 : 06:42:30 還沒找到,不過可能還要注意解析度問題.
吉屋出售 台北市基隆路二段套房,近台大及捷運,附近有黃昏市場,生活機能便利. http://www.hbhousing.com.tw/web/A002/index.asp?module=search&file=Detail&No=Z087382%20%20%20&AID=A002 台北縣板橋市大觀路一二樓公寓,接近國小至大學各級學校及公車總站,離捷運及板橋車站不遠. 詳情請洽0931043559田小姐 |