Nt1310 Unit 1 Lab Report

The Gyroscope developed at GIKI is a thermally actuated 3-DoF micro-machined gyroscope utilizing Chevron thermal actuators to drive proof mass. There are a number of actuation mechanisms which include electrostatic, piezoelectric, thermal etc. The benefits of this design will be described later.

“The vibrations of the tuning forks as they are passed over and around the body become carrier waves— specific sounds—that attract accumulated, disruptive energy patterns stored in the body,” she says.

This can be accomplished only through complex computer simulations, which uses three acoustic modulations to hold a levitating object in midair. These acoustic modulations can even be programmed to twirl and move levitating objects, or simply form a high-pressure bubble that holds the object stationary. Some acoustic simulations require the levitating object to be encased on all four sides by loudspeaker arrays to improve maneuverability. The actual loudspeaker relies on a series of long and short wavelengths, of which are generated at 40 kilohertz, at 140-150 decibels. Because this device runs at 40 kilohertz, the sound frequency is well above amicable human hearing, but is detectable to dogs. When the inaudible wavelengths create a pocket of low pressure, they can counteract the gravitational force of a polystyrene ball 5mm in circumference. Allow its rather paltry ability to levitate only light-weight material averts this technology from being applied as a tractor beams, medical scientists are exuberant about the fact that they can modify it to activate acoustic medication and manipulate individual

Aim: To show the relationship between Mass, the force acting on it, and acceleration by gathering data through investigations.

In this experiment, lab partners observed standing waves as presented by a sonometer. Students observed the relationships between frequency and length at a constant mass, frequency and tension at a constant length, and tension and linear density at a constant frequency. Our results were reasonable and indicated that the relationships for the first two parts were linear which means as the length decreases, frequency will increases at a constant tension and as tension increases, the squared frequency also increases at a constant length.

of the case, as does the keyboard, which sits off center to one end or the other. At the opposite end of this rectangle is the soundboard. The soundboard is a box taking up one quarter of the total length of the instrument. It is usually made of softwood with an “f” shaped hole cut in it to amplify the sound coming from the strings, which are situated just above it. The keys sit on a simple rocker mechanism and strike the strings with brass blades called tangents. Under normal circumstances the strings are deadened by felt dampers lying very near to on end of the strings. As the key is depressed it strikes the string just past the felt damper and creates a temporary bridge for that string allowing it to vibrate. For the note to continue to vibrate the player must keep the key depressed. Also, due to the nature of the mechanism on the clavichord it is possible for the player to create vibrato by varying the amount of pressure put on a key once it has been depressed. Unfortunately due to the size and construction of the clavichord it has an extremely soft sound making it impossible to be heard in noisy surroundings.

As the deflection stiffness of the ribs increase the buckling pattern changes forming more than one half sine waves over the length of the box as shown in the next figure

Since our turning device developed from this project should be compatible with all types of electric guitar, my specific contributions to the project deals with system design, experimental analysis and problem solving. I come up with the hardware design. Like we said before, there are other devices out there such as Tropical Tune’s Self Tuning system, so the signal processing part of our design has proven durable. The problem we encounter the most is the one deals with actual hardware, in this case the displacement of six tuning pegs of the different kind of guitars. The copper wire design that allows for multiple-string tuning and is lightweight, which makes this a convenient, easy to carry tuning device. The

This is the method which is used to set up the differential equation of the motion of a string known as a ‘’wave equation ‘’this was first developed by D’Alembert in 1750. In contrast to this, the vibration of the thin beams that are supported and clamped in was studied by Euler in 1744 and Daniel Bernoulli in 1751 their theory is known as the Euler-Bernoulli or thin beam theory. Just like in 1882 where Hertz also introduce the first successful theory of impact (Rao, S. S. 2004).

Obviously, none of these shapes of constant loading can perform redistribution of inertia forces which occur with the first local mechanism and change of dynamic properties of the structure. Therefore, it is interesting to find a load shape which is closer to the variation of inertia forces distribution and gives a better approximation of the behavior of

With the advancement in science and technology we are now seeing many new and improved applications of Nanoelectromechanical systems in various field. With the decrease in the size of many mechanical devices in terms of thickness and mass, we have been able to achieve an increased resonant frequency and low force constants. The sizes of NEMs devices vary between a few nanometers to a few hundred nanometers depending upon the application of the device. The prevalence sophisticated fabrication technologies has led to the decrease in the size of devices. NEMs devices find a wide range of applications as sensors, displays, for data storage and in medicine.

12 PnC and the resonance frequency, as well as a comparison with conventional straight-beam tethers.

the velocity near the axis of the plate were made with a pitot-static tube attached to the c e n t r a l

Deflection of an Eccentric Tie Student Name Soh Zheng Pei 0303341 Group Members Toh Khai Liang Fong Woei jiunn Lee Deng Cherrng Date of Experiment: | Report due date: | Report submission date: | Checked by: | Item/marks | | Format/10 | | Abstract and Introduction/10 | | Figures and Diagrams/15 | | Materials and Method/10 | | Results Discussions/45 | | References/10 | |

Vibrations are undesirable for structures, due to the need for structural stability, position control, durability, performance, and noise reduction. Vibrations are concern to large structures such as aircraft and small structures such as electronics.