frequency sources. A Resonator will fulfil these requirements. We design and analysed a novel three types resonators as follows Temperature Compensated Resonator, Comb Drive Resonator, Piezoelectric Resonator. The design and analysis are all done in FEM (Finite Element Method) analysis tool. Keywords—Microelectromechanical system, resonators, comb drive, piezoelectric. Introduction The quartz crystal resonator has been replaced by MEMS resonator in last few decades. A MEMS Resonator having a good power
A surface acoustic wave (SAW) resonators are widely used for frequency selection in mobile and wireless transmission systems [1]. SAW devices consist of piezoelectric substrate, interdigital transducers (IDT) and reflectors deposited on top of the substrate [2]. When voltage is applied at the electrodes, it generates electric fields, which produces piezoelectric strains propagating in both directions as shown in Fig. 1(b). Thus, surface acoustic waves are generated through inverse piezoelectric effect
Abstarct: In this paper we get an overview of the dielectric resonator antenna which replaced the simple form of antennas that were being used for the past ten years. These dielectric antenna have been of a great importance to the research work in antenna field as these have a great dielectric constant and higher Q factor than the other isotropic or directive antennas. Earlier these antennas were considered to be energy storage devices but in this paper we have made use of the DRA antennas as radiators
will affect the sound coming from the instrument, the pot or the resonator? II. Background Research Have you ever wondered what makes some instruments sound different than others? The idea of this project is to build a banjo and determine what parts affect the sound that comes out from the instrument. The banjos sound can be affected by size, shape and weight. One of the most important parts of the banjo is the resonator, this paper will discuss this. This information is important because
Sound It may be commonplace to point out that acoustic reality and perceptual reality are different. In a live performance situation, for example, no matter how still the audience, the environment will be full of sounds extraneous to the music. If a tape recorder were positioned somewhere in the midst of such a situation, and if a segment of the resulting tape were submitted to digital sound analysis, the results would highlight the difference between what one heard during the performance (what
“ticks” of a “resonator”. As technology is not the same as it was before and the advances till now have been significant, pendulum clocks were just fine for scientists. As
For starters, as previously mentioned, the resonator was added to the banjo sometime during the life of Henry C. Dobson. Around the time of World War I, the popularity spiked due to America entering, “...a time of isolation and turned to ‘American made’ music for pleasure. Jazz entered the picture
ABSTRACTS The limitation occurs during uses of non-renewable resources day by day, we want to go for renewable energy source. As we can see that with uses of non-renewable source its exhaust every day, and its increase pollution. we can decrease that by increase the use of renewable sources. Solar, tidal, wind which are renewable sources, they can generate electricity without any pollution. We also worked on another type of source, it is something which can generate electricity without any constant
at a frequency of 150 kHz, creating hug 42 m "lightning" bolts. The magnifying transmitter design is not completely the same as the classic two-coil Tesla coil circuit. In addition to the mentioned primary coil and secondary coil it had a third "resonator" coil, not magnetically coupled to the others but attached to the top terminal of the secondary. When driven by the secondary coil it produced additional high voltage by resonance, being adjusted to reverberate with its own parasitical, in biological
Can you believe that Mayan people would sacrifice humans into cenotes in Chichen Itza to worship their gods? Chichen Itza is located in the Yucatan Peninsula in Mexico, and it's surrounded by forests. It is at the same level as sea level, and it covers about 5km2 now. It was estimated 25km2 when heyday. The name is translated as "at the mouth of the wall of the Itza". Chichen Itza's buildings and history from a long time ago impressed many people. As archeologists and scientists kept excavating and
Strings : Cello : musical instrument of the violin group, with four strings, pitched C–G–D–A upward from two octaves below middle C. The cello, about 27.5 inches (70 cm) long (47 inches [119 cm] with the neck), has proportionally deeper ribs and a shorter neck than the violin. (The Editors of Encyclopædia Britannica) Violin : by name Fiddlebowed, stringed musical instrument that evolved during the Renaissance from earlier bowed instruments: the medieval fiddle; its 16th-century Italian offshoot
sympathetic strings lying under the frets. These strings are almost never played but they vibrate whenever the corresponding note is sounded. The frets are metal rods, which have been bent into crescents. The main resonator is usually made of a gourd and there is sometimes an additional resonator attached to the neck (Indian music). Another famous music instrument is tabla. Tabla is a pair of drums. It consists of a small right hand drum called dayan and a larger metal one called bayan. The tabla has an
Physics is all around us, and yet we always overlook it. We see, hear or feel something happen but never stop to question why. Physics will tell us why. Music plays a part in everyone's lives. So much so that it is often overlooked and the technicalities of it are unappreciated. Sure there are times when we listen carefully to the music behind the songs we hear, we may focus on the rhythm or the harmonies, but we never think of what it took to make the sounds that we are hearing. In this paper, I
It was popular in the states and added to the popularity of the Negro slide blues style. The music spread and caused manufacturers to increase production of guitars. National, Gibson and Rickenbacker were producing resonators. The Hawaiian lap steel was becoming more popular than the Spanish-style guitars. The Hawaiian influence began to spread into all types of folk music. Blues, mountain hillbilly and country with a dobro style all added slide into their repertoire
Materials such as glass, paper, and plastic are transparent to and generally unaffected by microwaves. * Microwaves are reflected by metal surfaces, much as a ball would bounce off a wall. The metal walls of the cooking space actually form a cavity resonator. In other words, the enclosure is designed to resonate the microwaves as they are radiated from the magnetron tube. The principle of resonance may be illustrated using sound waves. When a piano key is struck, it produces sound vibrations or sound
Construction Techniques The idea that man can create materials which have properties not found in nature is profound, however in reality this is a relatively simple process. One designs a unit cell or meta-atom and then binds these meta-atoms into a structure creating a metamaterial [1]. Such a metamaterial can have optical properties which can be adapted to a certain requirement. To make a Negative index metamaterial, NIM, the requirement is that the refractive index, n, should be negative.
Abstract: A laser is a electron device that produces a very narrow, powerful beam of light. The essential components of a laser include an active medium, an energy source, and an optical cavity. The optical cavity itself is enclosed by the resonator which has a mirror at each end. The energy that is put into the laser causes the atoms of the active medium to be excited to a higher energy level. When these atoms relax back down to their ground level they emit photons, which is part of a chain
used in the late 1700s and the early 1800s, was that of the acoustic throne. As these were quite costly to make and buy, they were typically used for royalty and other elites. The arms of the chair were hollow, with a long tube connected to a resonator located wit...
Acoustic Guitars: Everything You Want To Know If you or your child has found an interest in the acoustic guitar, you are not alone. Many people have simply fallen in love with this instrument and prefer it over the electric guitar. It is said that there is simply something more "real" about the sound being produced by nothing more that the strings, which is then project by the acoustics. However, just how does this work? It is true that the strings alone create the musical sound, but the problem
Ever since I can remember I have always had a fondness for bluegrass music. I grew up on old gospel music and later on started loving country music. I was not allowed to listen to any other kind of music but gospel. So whenever I listened to country on the radio I made sure to make it a habit to turn it back to the normal station. Over half of my family plays some type of instrument which consists of the piano, organ, saxophone, fiddle, banjo, guitar, and bass. My grandpa is 96 years old and to this