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Visar resultat 1 - 5 av 27 uppsatser som matchar ovanstående sökkriterier.
1. Developing a portable, customizable, single-channel EEG device for homecare and validating it against a commercial EEG device
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : There are several commercial electroencephalography (EEG) devices on the market; however, affordable devices are not versatile for diverse research applications. The purpose of this project was to investigate how to develop a low-cost, portable, single-channel EEG system for a research institute that could be used for neurofeedback-related applications in homecare. LÄS MER
2. Design of auxiliary communication for audio between computers and DSPs : Programming and optimization of computational resources
Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronikSammanfattning : This thesis report is about designing a prototype and establishing audio communication between a computer and Digital Signal Processor (DSP) using two preamp circuits using both auxiliary and USB connection. The paper gives the reader an overview on how audio is transmitted from a computer, through the system and to the desired output. LÄS MER
3. Automatic Maximum Sound Pressure Level (SPL) Measurements Inside Cars
Master-uppsats, KTH/Teknisk akustikSammanfattning : With a growing interest in technical specifications among consumers, there is a need for accessible measurement tools that enable individuals to evaluate the performance of their equipment, including common speakers and car audio systems, beyond what the manufacturer provides. However, the existing measurement systems are often geared towards professionals. LÄS MER
4. Utvärdering av laddningssystem för elfordon
Kandidat-uppsats, Högskolan Väst/Institutionen för ingenjörsvetenskapSammanfattning : Elfordon är en viktig del av omställningen till en mer hållbar transportsektor och för att kunna nå de uppsatta klimatmålen, både globalt och nationellt. Biltillverkare arbetar ständigt med att utveckla olika komponenter för att kunna optimera egenskaperna, däribland laddning. LÄS MER
5. Implementation of Nodes in HVDC Grids
Kandidat-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : This project is made for a deeper understanding ofhow frequency and amplitude of the waves that create the controlwave in a Pulse Width Modulated 2-level inverter affect the powerquality and power losses. The results were that a high frequencyreduces the Total Harmonic Distortion but increases the powerloss. LÄS MER