03-03-2012, 12:44 PM
can i get full report and ppt on nanopolymer technology as soon as possible
03-03-2012, 12:44 PM
can i get full report and ppt on nanopolymer technology as soon as possible
08-05-2013, 04:04 PM
NANOPOLYMER TECHNOLOGY NANOPOLYMER.docx (Size: 328.73 KB / Downloads: 19) ABSTRACT Nanotechnology involves working with matter at the scale of onebillionth of a meter (1 nanometer). It refers to the manipulation of matter on the minutest scale, i.e. atoms and molecules. According to Moore’s law, the number of transistors on a chip doubles every 18 months. Going by this law, current standards would no longer be feasible. Carbon Nanotubes technology is under progress and it will take quit a lot of time for practical implementation. NEW NANOPOLYMER CONCEPT 0’s and 1’s make up the digital information and we try to cram as much information as possible. Our Nanopolymer setup uses thousands of nano-sharp tips to punch indentations representing individual bits into a thin plastic polymer film. The result is similar to a nanotech version of the 'punch card' but this technology is re-writeable and may be able to store more than 3 billion bits of data in the space occupied by just one hole in a standard punch card. The indentations that are left on the polymer film measure about 10 nanometers each and carry a digitized version of the data. A punched indentation may refer to as 0 or 1. Practical implementation of this technology is possible. NANOPOLYMER ROBOTS NanoPolymerRobots are nanodevices that will be used for the purpose of maintaining and protecting the human body against pathogens. This is at present possible only with the above proposed technology. We have designed the nanorobot structure. Proposed applications include Nanopolymer machine for mouthwash, cream with tiny polymer robot for skin diseases, polymer soldier for immune system and devices working in the bloodstream which could nibble away at arteriosclerotic deposits, widening the affected blood vessels. SMART POLYMER SHIRT With this new nanopolymer technology, even the finest textile fibres could have sensors, computers, and motors embedded in the fabric. Likewise, clothing would be smart enough to change according to ambient temperature, i.e. it will keep us warm in winter or cool and dry in summer. It can also monitor parameters like heart rate, respiratory rate, and body temperature. NANOTECHNOLOGY INTRODUCTION Every living being is composed of matter. Matter is again the composition of infinite atoms. The atoms cluster together to form molecules, which, in turn, combine with several other molecules to form a basic molecular structure. These are vital things to consider in the field of nanotechnology. Nanotechnology involves working with matter at the scale of one-billionth of a meter (1 nanometer). It refers to the manipulation of matter on the minutest scale, i.e. atoms and molecules. MOORE’S LAW According to Moore’s law, the number of transistors on a chip doubles every 18 months, and new micro transistors are crammed onto the tiny chipset for more raw performance. Going by this law, experts are of the opinion that sooner than later the current standards would no longer be feasible for further deployment and the hardware would be needed to change considerably. CARBON NANOTUBES All over the world scientists have been working with Carbon Nanotubes for the last several years. Carbon Nanotubes are tiny cylindrical structures made up of carbon atoms having unique properties. Nanotube transistors can be made smaller than the smallest possible silicon transistor. But this technology is under progress and it will take quit a lot of time for practical implementation. NEW NANOPOLYMER CONCEPT 0’s and 1’s make up the digital information and we try to cram as much information as possible. Our Nanopolymer setup uses thousands of nano-sharp tips to punch indentations representing individual bits into a thin plastic polymer film. The result is similar to a nanotech version of the venerable data processing 'punch card' developed more than 110 years ago, 101seminartopics.combut the differences are the 'Nanopolymer concept’ technology is re-writeable (meaning it can be used over and over again), and may be able to store more than 3 billion bits of data in the space occupied by just one hole in a standard punch card. The indentations that are left on the polymer film measure about 10 nanometers each (each mark being 50,000 times smaller than the period at the end of this sentence.) and carry a digitized version of the data. Sensors For classical robots, the sensors are usually at the joint level. Assuming that the links are highly rigid, a geometric model is calculated to transform the sensors information into a position and orientation of the tool center point (TCP) in an absolute cartesian frame. This technique leads to a poor accuracy but to a good repeatability, most of the errors being due to offset miscalibration and link deformation. If higher accuracy is needed, a calibration is often proposed. However, when dealing with nanometer precisions, many sources of errors are not predictable, and cannot be corrected in a calibration process. It is then imperative to use a sensorable to measure, with the desired resolution, the relative distance between the TCP and the object to grasp. Among the sources of error that could affect the precision of the robot we can list: • friction, mechanical play • thermal drift • fabrication tolerances and misalignment • mechanical deformations due to forces • vibrations (internal and external) and noise • sensor errors, miscalibration. The ideal sensor would measure this relation with the highest possible resolution (at least better than 10 nm), in 6 degrees-of-freedom (dof), and with a very high bandwidth (> 10kHz). Mechanics: It is obvious that a good mechanics will lead to better performances of the overall system and will simplify its control. We discuss in the following some important aspects to be aware of. If the sensor system is able to measure directly the relation between the TCP and the object, the robot must not be accurate anymore. The only requirement is a high resolution, that is the smallest achievable step. This leads to completely new solutions that are much more tolerant in fabrication and are easier to handle. A careful design is however necessary and a special attention has to be put on the elimination of backlash and Coulomb friction. The difference between the dynamic and static friction coefficients is the cause of the stick-slip effect in classical mechanisms. This effect gives a lower limit to the reachable resolution. It is very expensive and almost impossible to go down to nanometers with such drives. New designs must be found trying to avoid friction in the bearings or better, to avoid bearings. Piezoelectric elements are well suited for that purpose. Several concepts have been proposed to increase it while keeping the high precision. |
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