Development of a Low-Cost Relay Prototype for Real-Time Power Protection Functions

Low cost prototype development of electronic knee

Introduction With increase in road accidents, machine calamities etc, 5.5 lakhs people in India have lower limb amputations every year and need some kind of prosthesis1. Low cost prosthetic products are not able to perform coordinated and complex movements of a knee joint2,3. Sophisticated electronic knee are very costly (OttoBock cost’s Rs 18-20 lakhs). With the advent of integration of techno...

Algorithm Design and Prototype of a Low-Cost Electromagnetic Inductance Real-Time 6D-Tracker

Data Acquisition System for Volcano Monitoring With Real-Time Transmission, Low Cost and Low Power Consumption

An acquisition system has been developed as an evolution of the gDT316 and gCNT16 dataloggers [1]. This new datalogger, gDT524, has several advantages in comparison with the previous versions. The main features, beside the low power consumption and low cost, are: an A/D converter with 24 bits fivechannels inputs, two 16 bits counters, meteorological sensors, real time clock with synchronization...

Development of a Low Cost and Safe PIV for Mean Flow Velocity and Reynolds Stress Measurements

In this study, a white light particle image velocimetry (WL PIV) system which employs a light sheet generated with a flash was used. The system was developed in order to provide a cost-efficient and safe alternative to laser systems while keeping the accuracy limits required for hydraulic model tests. To investigate the accuracy of WL PIV method under different flow conditions, experiments were...

A fuzzy logic based relay for power transformer protection

rotection schemes employing the differential relaying principle exhibit certain limitations in applications with power transformers. This is because the detection of a differential current does not clearly distinquish between internal faults and other possible conditions. Among the phenomena most likely to upset the current balance and cause the relay to malfunction are inrush magnetizing curre...