What is sonar and what does sonar refer to

An instrument that uses sound waves or ultrasonic waves reflected back from a target to detect the presence and location of underwater objects, such as submarines or deep-water mines.

Sonar is also used as sonar. Sonar, which stands for Sound Navigation and Ranging, is an acoustic detection device that uses the propagation and reflection characteristics of sound waves in water to navigate and distance through electroacoustic conversion and information processing.

It was invented in 1906 by Lewis Nixon of the British Navy. The classification of sonar can be divided into various sonars according to its working mode, according to the equipment object, according to the tactical use, according to the carrying mode of the base array, and the technical characteristics.

An important device in sonar, it serves two purposes. One is to emit sound waves underwater, called a transmitting transducer, which is equivalent to a speaker in the air.

The second is to receive sound waves underwater, called receiving transducers, which is equivalent to microphones in the air. Transducers are often used to transmit and receive sound waves at the same time, and transducers specially designed for reception are also called "hydrophones". Transducers work on the principle of piezoelectric or magnetostrictive effect, which uses the piezoelectric or magnetostrictive effect of certain materials to expand and contract under the action of an electric or magnetic field.

Sonar is also called sonar. In fact, sonar represents a physical quantity, and in physics, "acoustic admittance" is used to indicate the ability of a substance to allow sound to pass through, and the English is acousticsusceptance, which has long been named, so other concepts can no longer be expressed by this term. The word sonar refers to a kind of acoustic wave detection instrument and a kind of underwater acoustic equipment, and the two should not be confused.

Sonar is also called sonar. In fact, sonar represents a physical quantity, and in physics, "acoustic admittance" is used to indicate the ability of a substance to allow sound to pass through, and the English is acoustic susceptance, which has long been named, so other concepts can no longer be expressed by this term. The word sonar refers to a kind of acoustic wave detection instrument and a kind of underwater acoustic equipment, and the two should not be confused.

In 1996, the "Physics Terminology" has made it clear that "sonar" is a canonical word, but in the early days, most dictionaries translated sonar as "sonar", so many dictionaries still translate it as "sonar".

Summary. Hello, I'm glad to answer for you: kiss, sonar; Sonar generally refers to sonar, which is the Chinese transliteration of the English abbreviation "sonar", which is the technology of navigation and ranging through electroacoustic conversion and information processing using the propagation and reflection characteristics of sound waves in water, and also refers to the electronic equipment that uses this technology to detect and communicate underwater targets.

Hello, Zaola is happy to answer for you: kiss, sonar; Sonar generally refers to sonar, which is the Chinese transliteration of the English abbreviation "sonar", which is the use of sound waves in the water to propagate and reflect the characteristics of jujubes, through electroacoustic conversion and information processing for navigation and ranging technology, and also refers to the use of this technology to detect and communicate electronic equipment for underwater targets.

Addendum: Sonar and sonar mean the same thing. Sonar technology is more than 100 years old, and it was invented in 1906 by Lewis Nixon of the British Navy.

His first sonar mold was a passive listening device used to detect coded oak icebergs. This technology began to be applied to the battlefield in the First World War, used to detect submarines hidden underwater, these sonars can only be passively heard, belonging to passive sonar, or called "hydrophones", and later people invented active sonar.