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Ultrasonic sounds are sounds that are above our hearing range.
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∙ 14y ago
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What are sound conclusions?
sound is a mechanical wave.Sound can be of two types :music and noise. sound gets reflected. we need about 300 metres for a good echo to be heard. there are audible and inaudible sounds. audible from 20Hz to 20000Hz.below 20Hz and above 20000Hz are inaudible sounds.There are infrasonic and ultrasonic sounds.
Is ultra sonic sound harmful to your ears?
People's ears acceptable to sound range from 16 to 20,000 Hertz. When the sound of frequency reached 25 to 8,200 Hertz, can feel the vibration. Less than 16 hz voice called bass, higher than 20,000 Hertz for ultrasonic. More than 20 years ago, scientists began to earnest study voice to the influence of human body, the results showed that the ultrasonic to internal organs of harmful effects. Elastic joints and electric guitar hand fingers damage Originally, long-term exposure to more than 20,000 Hertz voice effect, can cause human body organization a slight fever. When frequency high to ultrasonic or higher, fever rapidly. The results, the body of water molecules are burned, the surrounding tissue destruction. Ultrasonic if not controlled more dangerous, can cause excessive blood, inflammation and arthritis. High frequency instrument, such as electric guitar, in performing sent lot of ultrasonic. So, a musician's hand joints and finger damage. Because have clothes, the body suffers smaller. Sometimes the electric guitar on bending the knees, also can affect the knee. The high strength of high-power ultrasonic continuing role in human tissue is harmful. Small power ultrasound in intermittent role in human tissue is very beneficial. Ultrasonic is a kind of vibration wave. Tell a popular example, when someone gives you gently beat back you comfortable, but when you feel pain crit, you even damage. The following originates from the network reference No harm to people, ultrasonic there is profit. Actually acoustic belongs to the category of voice, belong to wave, sound waves refers to the human ear can feel a kind of wave, the frequency range for 16Hz - 20KHz. When sound waves of frequency 16Hz when he called below 20KHz is called device, higher than the ultrasonic sound wave. Ultrasonic has the following features: 1) ultrasonic available in gas, liquid and solid, solid melts in the media such as efficient human-to-human transmission. 2) ultrasonic can transfer strong energy. 3) ultrasonic produces reflection, interference, stacked and resonance phenomenon. 4) ultrasonic in liquid medium transmission, the screen produces strong impact and the cavitation phenomenon. Ultrasonic sound is a member of the family. Sound waves are objects mechanical vibration condition (or energy) form of transmission of. So-called vibration refers to material of particles in its balance position near the round-trip movement. For example, reaches the knock that it up and down, the vibration state vibration through the air medium in all directions, this would be sound waves spread. Ultrasonic vibration frequency than 20KHz refers to the above, the person is in natural environment to hear and feel of the sound wave. Ultrasonic treatment concept: Ultrasound treatment learning is an important part of ultrasonography. Ultrasound treatment will ultrasonic energy function in the human body the lesion site, in order to achieve treat diseases and stimulative airframe rehabilitation purpose. Around the world, ultrasonic diagnostics, widely used in the treatment of science, engineering, biology, etc. The composer household ultrasonic constrution belongs to the ultrasonic therapeudic use category. (a) in engineering application: underwater positioning and communications, underground resources exploration, etc (2) biological applications: shear macromolecules, bioengineering and handle seed, etc (3) diagnostics applications: type A, type B, type, type D, M type double function, and sufficiency, etc (4) therapeutic applications: physical, cancer, surgery, in vitro gravel, dental, etc Ultrasonic features: 1, ultrasonic in spreading, directional, strong energy to concentrate. 2, ultrasonic can spread in different medium, and can spread far enough distance. 3, ultrasonic and sound transmission medium interaction moderate, easy for carrying about sound transmission medium state information (diagnosis or sound transmission medium to produce effect (treatment). Ultrasonic is a kind of wave form, it can be used as a detection and load information carrier or medium (such as type-b ultrasonic diagnosis); used as Ultrasonic also an energy form, when its strength over a certain value, it can be spread through the medium of ultrasonic and interaction, to influence the result that break the latter, change of state, nature and structure (as a treatment for). Ultrasonic history: A, international aspects: Since the late 19th and early 20th centuries, in the physics discovered on the piezoelectric effect and reverse piezoelectric effect later, people solved the use of electronics technology producing ultrasonic method, from now on rapid development and promotion unveiled the ultrasonic technology history chapter.
Where might one go to learn more about ultrasonic pest repellent?
There are several websites that offer information on ultrasonic pest repellent. These websites include Wikipedia, Bug Info, FTC, Victor Pest, and Water Reeves.
Compare ultrasonic and infrasonic?
The definition of infrasonic is relating to sound waves with a frequency below the limit of human hearing, 20 Hz. Ultrasonic relates to sound waves with a frequency above the limit of human hearing, 20,000 Hz.
What are examples of motion detectors?
Motion detectors are: infrared detectors, ultrasonic, microwave, radiowave and... dogs.
How do bats make the ultrasonic sounds?
They can't becuase ultrasonic doesen't make sound.
How do animal use ultrasonic sounds to find their way or to catch food?
How do animal use ultrasonic sounds to find their way or to catch food
What is the meaning of ultrasonic sounds?
Sounds that are a frequency that is above the range of hearing.
Do loud speakers produce ultrasonic sounds?
Yes
Object used to hear sounds far away?
ultrasonic
What are the uses of ultrasonic sounds?
industrial applications of ultrasonic waves: 1. ultrasonic welding 2. ultrasonic cleaning. 3. ultrasonic drilling. 4. ultrasonic soldering. +++ 5. Flaw detection in metals etc. And many others if you stretch the term "industrial to include, say, medical!
What do you call sound of higher pitch than your range of hearing?
Ultrasonic sounds
What are the real life applications of ultrasonic sounds?
Sonograms, dog whistles, Sonar.
Is it all right to listen to music while exposed to ultrasonic sounds?
me dont know
Who can hear ultrasonic?
Elephants, fish, bats, dolphins, and newborn babys can hear the sounds.
What are the frequencies that are considered ultrasonic sounds?
Anything above 20 KHz is, although the medical ultrasound systems operate with sounds up into the megahertz.
Why can't a loudspeaker produce ultrasonic waves?
Almost all loudspeakers are designed with amplifying circuits, or output speakers, or both, that would not magnify sounds in the ultrasonic frequency (over 20 kHz).
