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Nandhakumar, S.
- Enhancement of Drive System of Robot through Wireless Energy Transfer
Authors
1 Department of ECE, Angel College of Engineering and Technology, Tirupur, IN
2 Department of Mechanical Engineering, Angel College of Engineering and Technology, Tirupur, IN
3 Department of EEE, Angel College of Engineering and Technology, Tirupur, IN
Source
Wireless Communication, Vol 2, No 2 (2010), Pagination: 13-18Abstract
The elimination of batteries in mobile robots attracts considerable attention in the field of robotics. The process of exclusion of batteries brings up economical reduction in cost, weight,recharging time and total working time of the robots. This system finds a way for the continuous operation of a mobile robot. The present study shows a new trend of drive system for autonomous vehicle operating on a continuous energy supplied with no batteries and wires. In this proposed system, the power transmission is actively done through a high power transmitter antenna coil and a receiver coil embedded in the autonomous vehicle. The drive system of the robot receives the energy from the receiver coil which acquires the energy through wireless from the transmitter coil. From the result of received energy, the designed spy robot has operated wide a distance of 100 cm with out any fluctuations. The efficiency of the energy obtained from the transmitter coil is around 60%. The maximum distance that the energy transmitted is up to 240cm with a fall in output voltage. The obtained result is tabulated.
Keywords
Battery less Operation, Energy Supply For Robots, Robot Drive Systems, Wireless Energy Transfer (WET).
- Wireless Charging of Handhelds Using Radio Frequency from Non-Conventional Energy Resources
Authors
1 Electronics and Instrumentation Engineering, Mahendra Engineering College, Namakkal, Tamilnadu, IN
2 Electronics and Instrumentation Engineering, Mahendra Engineering College, Namakkal, Tamilnadu, IN
Source
Biometrics and Bioinformatics, Vol 7, No 2 (2015), Pagination: 48-51Abstract
Sustainable development will require replacement of older technologies and increased use of both renewable energy and wireless technology. What if there was a way we could harvest the energy that is being transmitted and use it as a source of power for handhelds? And also that to from Non-conventional energy source like solar power. This paper deals with a system that enables you to charge your handhelds wirelessly form zero pollutant solar energy. A system that to be presented will be using a receiving antenna and charge pump technology to charge a handhelds battery without wires. The base station which is a transmitter of power is powered from solar energy. The solar energy which is trapped is transmitted as radio frequency from the base station. At the receiving end we contain antenna that is tuned to transmitted frequency and a charge pump to charge up the battery of Handhelds.
- An Error Minimization in Industrial Robot Arm Performance Using Haar Wavelet Series
Authors
1 Angel College of Engineering and Technology, Tiruppur-641665, IN
2 RVS College of Engineering & Tech., Coimbatore-641402, IN
3 Mechanical Engineering Department, Coimbatore Institute of Technology, Coimbatore, IN
4 Park College of Engineering & Tech., Coimbatore, IN
Source
Automation and Autonomous Systems, Vol 1, No 2 (2009), Pagination: 53-58Abstract
This paper attempts to analyze the performance of an industrial robot by comparing the solutions obtained using RK method and Single-Term Haar wavelet series (STHWS) method. The exact solution of the system of equations representing the arm model of a robot, has been compared with the corresponding discrete solution at different time intervals. The absolute error between the exact and discrete solutions has also been determined in order to suggest the method of improving the performance of a robot. The validation has been carried out with reference to the earlier research output appeared in this field of study.Keywords
Robot Dynamics, Runge-Kutta Methods, Single-Term Haar Wavelet Series, Singular and Non-Singular Systems.- Preliminary Toxicity Evaluation of Bidens pilosa Extracts Using Experimental Mice
Authors
1 Annamalai University, Annamalai Nagar–608002, Tamil Nadu, IN
2 GIET School of Pharmacy, Rajahmundry, AP, IN
3 Annamalai University, Annamalai Nagar-608002, TamilNadu, IN
Source
Research Journal of Pharmacognosy and Phytochemistry, Vol 2, No 5 (2010), Pagination: 397-402Abstract
The present study was carried out to evaluate acute and sub-acute toxicity in mice (Swiss albino mice). In acute toxicity study, the test material of methanolic extract of B. pilosa (MEBP) (Asteraceae) was administered orally at dose levels 3, 3.5, 4, 4.5, 5 and 5.5 g/kg, b.wt are observed. The mortality signs behavior using Finley's probit analysis LD50 dose was calculated as 4.5 g/kg b.wt. In the sub-acute toxicity study, methanolic and petroleum ether extracts of B. pilosa (MEBP and PEBP) were administered at dose levels of 200 and 400 mg/kg b.wt, p.o., once a day for 28 days. All the animals were sacrificed on 29th day and blood was collected and various hematological parameters such as total count of RBC, WBC, DLC and Hb content were monitored and serum protein levels evaluated. Histopathological evidence of the viscera showed congestion and focal necrosis of the liver and renal tubules. It is apparent from the results that the MEBP is safe; however the depression in respiration mechanism that lead to the death of the mice needs to be investigated further.Keywords
Acute, Sub-Acute Toxicity, Hematological Parameters.- Optimization of Machining Parameters in EDM Using SS 317 by Factorial Design
Authors
1 Department of Mechanical Engineering, M. Kumarasamy College of Engineering, Karur, Tamil Nadu, IN
Source
International Journal of Emerging Trends in Science & Technology, Vol 3, No 2 (2017), Pagination: 29-33Abstract
Electric Discharge Machining (EDM) is an electro-thermal non-traditional machining process having a widespread applications in automotive, aviation, miniaturized scale frameworks industries etc. EDM process is governed by thermoelectric vitality between anode (workpiece) and cathode (tool wire). EDM shoulders a fantastic part in the improvement of practical things with more dependable quality affirmation. Enhancing the material removal rate, surface finish and diminishing the tool wear rate and dimensional variation were paid exceptional attention in EDM. Generally copper, brass and graphite are utilized as tool (cathode) materials. In this experimental research work, SS 317 grade steel is machined in EDM by varying input factors and optimized the process using Full factorial method. Copper and brass electrodes were utilized as tool material on SS 317 steel which is oil hardened, non-shrinking steel. These steels are used for fine parts such as taps, hand reamers, milling cutters, engraving tools and intricate press tools which cannot be machined easily after hardening.Keywords
Brass Electrode, Copper Electrode, Electrical Discharge Machining, Metal Removal Rate, SS 317, Tool Wear Rate.References
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