search:聲納頻率相關網頁資料

- en.wikipedia.org
  
  Sonar - Wikipedia, the free encyclopedia
  
  Sonar (originally an acronym for SOund Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other
  
  2024-08-04
  
  瀏覽：1414
- tw.knowledge.yahoo.com
  
  請問所有的聲納都是超聲波嗎? - Yahoo!奇摩知識+
  
  請給我證據我不要說是課本講的我本人認為不是所有的聲納都是超聲波而且我只有在課本講義上看到聲納都是超聲波上次我 ...
  
  2024-08-08
  
  瀏覽：680

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高中物理教材內容討論:聲納為什麼要使用超聲波

日期：2024-08-05

我認為應該主要是能量的因素，使得聲納的探測就採用高頻率來帶有較高的能量，所以聲納使用超聲波的 ......

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Frequency Used In Navigational Sonar - hypertextbook.com

日期：2024-08-08

Bibliographic Entry Result (w/surrounding text) Standardized Result "Sonar." Encarta's Encyclopedia Online. Microsoft, 2001. "Modern ultrasonic generators can produce frequencies up to more than several gigahertz (1 GHz = 1 billion Hz)." 1 GHz "Branch of ...

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Marine mammals and sonar - Wikipedia, the free encyclopedia

日期：2024-08-02

Active sonar, the transmission equipment used on some ships to assist with navigation, may be detrimental to the health and livelihood of some marine animals.[1] Research has recently shown that beaked and blue whales are sensitive to mid-frequency active...

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Frequency of Bat Sonar - hypertextbook.com

日期：2024-08-02

Sonar is a system in which objects are detected by sound waves. These waves are very high in frequency and are called ultrasonic. Ultrasound waves have frequencies above 20 kHz. Few animals can hear ultrasonic waves. Some of the animals that can hear them...

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Ultrasonic Sonar Ranging IC - PW0268 Features: z Operating Voltage: 6 – 10Vdc single source z Operat

日期：2024-08-03

Pro-Wave Electronics Corp. Tel: 886-2-22465101 Fax: 886-2-22465105 E-mail: sales@pro-wave.com.tw URL: http://www.prowave.com.tw 6 The resonate frequency of ultrasonic piezo transducers varies in an inversely proportional relationship to temperature. The ....

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Best SONAR Transducer Frequency - Moderated Discussion Areas

日期：2024-08-05

In general, it appears to me that as the frequency of the SONAR emission is increased, the resolution increases, too. However, for finding fish, the lower frequency and lower resolution may be more useful, as they give a bigger echo on the sonagram. Fish ...

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FLASH is a low-frequency, wide band dipping sonar for helicopters and unmanned surface vehicles prov

日期：2024-08-09

News, views and contacts from the global Naval industry...

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Side Scan Sonar - Dual frequency - Kongsberg Maritime

日期：2024-08-04

Dual frequency side scan sonar for seabed feature mapping offering flexibility and high quality results in a simple and reliable package ... Dual Frequency Side Scan Sonar system is the ideal tool for seabed feature mapping, offering high quality results ...

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