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The dynamic characteristics of capacitive transducer are similar to those of?
high pass filter
What is a sonar transducer?
A sonar transducer is the element in the sonar apparatus that turns the electrical signal into sound, which is mechanical energy, and then does the opposite for returning signals. A generator of some kind creates and amplifies the electrical signal, it is directed to the transducer, which then makes the conversion, and the pulse is sent out. The transducer then "listens" for returning energy, and converts anything that comes back into an electrical signal which is sent to the receiver. Sonar is (briefly) the use of sound (which is mechanical energy) to "look at stuff" in in water or other media. An electrical signal is generated by the equipment, and it is changed into mechanical energy by a special crystal in the same way a speaker changes electrical energy into sound we hear. The transducer is a piezoelectric crystal that works on the principle of the same name. Let's look at a transducer and see how it works, but first let's see what the underlying physics says about it. Piezoelectric crystals are crystals that change shape when we apply a voltage across the crystal. Depending on the placement of the leads that apply the voltage and the orientation of the crystal, it will expand or contract to a DC voltage. If we reverse the polarity of the applied voltage, the crystal will contract or expand (respectively) in just the opposite way. Applying an AC voltage causes the crystal to respond in that same way, and it will vibrate. These vibrations travel through the water or other media we are applying it to. The sonar transducer is a crystal mounted in a "holder" or some kind. It has electrical leads attached. The whole of this is "packaged" appropriately depending on whether it is going to be mounted on the hull of a vessel or held in the hand by an operator. A link is provided to a group of pictures of different types of transducers posted at photobucket. Surf on over and have a look.
Who invented transducer?
transducer was invented by
What is photosensitive transducer?
A photovoltaic transducer is simply another name for a solar panel. A transducer changes one energy to another in this case light energy to electrical energy. The two most common type of photovoltaic transducers are silicon and selenium.
What is pressure transducer?
please give a simple defineatoin of transducer.
How does sonar work using sound energy?
Sonar works by emitting sound waves from a transducer into the water. These sound waves travel through the water until they encounter an object, at which point they bounce back to the sonar device. By measuring the time it takes for the sound waves to return, the sonar device can calculate the distance to the object.
Bearing resolution of a sonar?
Bearing resolution in sonar refers to the ability to distinguish between two closely spaced objects in terms of their direction relative to the sonar transducer. It depends on factors like the beamwidth, signal processing techniques, and the frequency of the sonar system. Higher bearing resolution allows for better target discrimination and localization.
How is sonar similar to vocal?
Exactly the same. Sonar is Sound. We use the word sonar to indicate what use that the sound is put to- not to differentiate it from sound its self.
How is sonar waves created?
Sonar waves are created by emitting sound pulses into the water from a transducer. These sound pulses travel through the water until they hit an object, which reflects the sound back towards the source. By measuring the time it takes for the sound to return, sonar systems can calculate the distance and shape of the object.
What are the limits of a sonar?
The range of a sonar system is typically limited by the power of the sound source and the sensitivity of the receiver. Depth limitations can also be affected by water temperature, salinity, and turbidity, which can absorb or scatter sound waves. Additionally, the resolution of a sonar system may be limited by factors such as the frequency of the sound waves and the size of the transducer.
The dynamic characteristics of capacitive transducer are similar to those of?
high pass filter
What are the parts of an active sonar?
The parts of an active sonar system include a transducer to convert electrical signals into sound waves, a projector for emitting the sound waves into the water, a receiver to detect the echoes from objects, and signal processing equipment to analyze and interpret the received signals.
What are sonar rays?
Sonar rays are often used interchangeably with the term "sound waves" in the context of underwater communication and navigation. Sonar technology uses sound waves to detect objects or measure distances underwater by reflecting off surfaces. Sonar rays are emitted by a transducer and bounce back when they encounter an object, allowing for the calculation of distance and mapping of the underwater environment.
What is sonar to people?
Most people do not hear the sonar signals used by animals, such as bats or dolphins.
What animal has the most efficient sonar system?
bats have the most efficient sonar system, although dolphins come pretty close
What is a sonar transducer?
A sonar transducer is the element in the sonar apparatus that turns the electrical signal into sound, which is mechanical energy, and then does the opposite for returning signals. A generator of some kind creates and amplifies the electrical signal, it is directed to the transducer, which then makes the conversion, and the pulse is sent out. The transducer then "listens" for returning energy, and converts anything that comes back into an electrical signal which is sent to the receiver. Sonar is (briefly) the use of sound (which is mechanical energy) to "look at stuff" in in water or other media. An electrical signal is generated by the equipment, and it is changed into mechanical energy by a special crystal in the same way a speaker changes electrical energy into sound we hear. The transducer is a piezoelectric crystal that works on the principle of the same name. Let's look at a transducer and see how it works, but first let's see what the underlying physics says about it. Piezoelectric crystals are crystals that change shape when we apply a voltage across the crystal. Depending on the placement of the leads that apply the voltage and the orientation of the crystal, it will expand or contract to a DC voltage. If we reverse the polarity of the applied voltage, the crystal will contract or expand (respectively) in just the opposite way. Applying an AC voltage causes the crystal to respond in that same way, and it will vibrate. These vibrations travel through the water or other media we are applying it to. The sonar transducer is a crystal mounted in a "holder" or some kind. It has electrical leads attached. The whole of this is "packaged" appropriately depending on whether it is going to be mounted on the hull of a vessel or held in the hand by an operator. A link is provided to a group of pictures of different types of transducers posted at photobucket. Surf on over and have a look.
What did Paul Langevin invent?
Paul Langevin was a French physicist who made significant contributions to the fields of magnetism and acoustics. He is best known for inventing the Langevin transducer, a device that converts electrical energy into mechanical vibrations and vice versa, which has applications in sonar and ultrasound technology. Langevin also conducted pioneering research in the development of sonar systems during World War I.
