Search for dissertations about: "direct measurement"

Showing result 1 - 5 of 318 swedish dissertations containing the words direct measurement.

  1. 1. Embedded Measurement Systems

    Author : Lars Bengtsson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; Microcontroller; measurement system; direct sensor-to-controller; time-to-digital converter; phase detector; lock-in amplifier;

    Abstract : The subject of Embedded Measurement Systems (EMS) is the merging of embedded systems and electrical measurement systems. This indicates that EMSs are hardware-software systems dedicated to measuring one or a few physical quantities. READ MORE

  2. 2. Small-signal, large-signal and noise modelling of HEMTs

    Author : Mikael Garcia; Chalmers University of Technology; []
    Keywords : small-signal equivalent circuit; direct extraction; L-network; MMIC_lib; noise model; TRL-calibration; -nerwork; ninlinear model; HEMT; HFET; Y-factor measurement; Π; coldFET measurement; method; power-spectrum measurement;

    Abstract : .... READ MORE

  3. 3. Measurement and Application of Multidirectional Mobilities

    Author : Michael A. Sanderson; Chalmers University of Technology; []
    Keywords : source signal filtering; mass loading; rotational mobility; rotational inertia loading; multidirectional mechanical mobility; moment mobility; structural intensity; measurement techniques; vibration isolation;

    Abstract : The direct measurement of moment mobility, employing a twin exciter technique, is theoretically and experimentally examined. This is continued by a theoretical and experimental analysis of an improved technique using source signal filtering, for two degrees of freedom, for the measurement of multidirectional mobilities. READ MORE

  4. 4. Procurement Performance Measurement System

    Author : Daniel Knudsen; Teknisk logistik; []

    Abstract : The procurement process can be defined as all the activities required in getting a product or a service from the supplier to a final destination. It encompasses the purchasing function, storing, transportation and manages the relations between suppliers and internal customers. READ MORE

  5. 5. Synchronous Reluctance Machine (SynRM) in Variable Speed Drives (VSD) Applications

    Author : Reza Rajabi Moghaddam; Chandur Sadarangani; Alfredo Vagati; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Synchronous Reluctance Machine SynRM ; Torque; Torque Ripple; Design; Optimization; FEM; Control; Standard Size; Measurement; Performance Comparison; Induction Machine IM ; Interior Permanent Magnet Machine IPM ; Variable Speed Drive VSD ; General Purpose GP ; Field Oriented Control FOC ; Direct Torque Control DTC ; Heat Run; Test; Thermal; Operation Diagram; Circle Diagram; Electrical engineering; Elektroteknik;

    Abstract : This thesis is comprehensively dedicated to the theoretical and experimental reevaluation of the Synchronous Reluctance Machine (SynRM). A simple approach to derive the SynRM main characteristics and behavior is followed. An introduction to an evaluation of the different control strategies in is given. READ MORE