Sökning: "non-sinusoidal"

Hittade 4 avhandlingar innehållade ordet non-sinusoidal.

1. 1. A precision wattmeter for non-sinusoidal conditions : based on an analysis of common measuring problems due to harmonics

   Författare :Stefan Svensson; RISE; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sampling; wattmeter; non-sinusoidal; power; current; voltage; harmonics;

   Sammanfattning : .... LÄS MER

3. 2. Power Measurement Techniques for Nonsinusoidal Conditions. The Significance of Harmonics for the Measurement of Power and other AC quantities

   Författare :Stefan Svensson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; non-sinusoidal; reactive; harmonics; power; sampling wattmeter;

   Sammanfattning : The increased application of power electronics and other non-linear loads makes it necessary to re-evaluate the measuring techniques used in the power system, and the measuring problems these loads cause. An instrument utilising digital sampling techniques has been built and evaluated at the Swedish National Testing and Research Institute (SP). LÄS MER

4. 3. Metrological Properties' Analysis of a Microcomputer Analyser of Electrical Quantities in an Energetic System with Non-Sinusoidal Voltage and Current

   Författare :Wlodek Kulesza; Ph.D. Dissertation work; []
   Nyckelord :Measurement Science; Mätteknik;

   Sammanfattning : .... LÄS MER

5. 4. Dynamics of high-angle grain boundary YBCO Josephson junctions

   Författare :Tobias Lindström; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This thesis describes experimental investigations of properties of high-angle YBa2Cu3O7−δ(YBCO)bicrystal Josephson junctions and SQUIDs fabricated on SrTiO3-substrates. The main focus of theinvestigation has been on the effects of the predominant d-wave symmetry of the superconductingwavefunction in YBCO on transport properties and dynamics. LÄS MER