Essays about: "electrical switches"

Showing result 11 - 15 of 29 essays containing the words electrical switches.

  1. 11. Automation of Circuit Board Testing

    University essay from

    Author : Filip Palm; [2019]
    Keywords : kretskort;

    Abstract : The testing of printed circuit boards (PCBs) is a common quality control process mandatory for any of the circuit board factories to guarantee the quality and functionality of the PCBs. The manual operation of the testing process by an operator will be too difficult for a large volume of PCBs. READ MORE

  3. 12. Investigating Optical-Field-Induced Currents in GaN using Ultrafast Lasers

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Vidar Flodgren; [2019]
    Keywords : GaN; gallium nitride; nanoscience; material science; ultrafast lasers; Yb Laser; Pharos Laser; titanium sapphire laser; device fabrication; lift-off; gold etching; optical-field-induced currents; modelling; matlab; Physics and Astronomy;

    Abstract : This study saw the development of an experimental setup capable of generating and measuring optical-field-induced currents in a variety of nanodevices fabricated specifically for this project. Each device design features two metallic contacts, closely separated by about 5 micrometers, deposited onto a semiconductor or insulator substrate. READ MORE

  4. 13. Robot Vacuum cleaner

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Joel Bergman; Johan Lind; [2019]
    Keywords : Arduino; DC motors; Stepper motors; Ultrasonic sensors; Robot vacuum cleaner.; Arduino; likströmsmotorer; stegmotorer; ultraljudssensorer; Robotdammsugare;

    Abstract : Although a robot vacuum cleaner is a well-known product, development is still interesting. Better working sensors and more sophisticated algorithms and sensors are used in new cleaners. READ MORE

  5. 14. A Study on Interface Circuits for Piezoelectric Energy Harvesting

    University essay from Linköpings universitet/Elektroniska Kretsar och System

    Author : Tang Honghao; [2018]
    Keywords : interface circuit; PEH system; switch;

    Abstract : A piezoelectric energy harvesting (PEH) system can harvest electrical energy from ambient vibration energy. In a PEH system, the interface rectifier circuit is critical because it converts AC from the output of piezoelectric harvester to DC that can power the load. READ MORE

  6. 15. Ferroelectricity in nanocrystalline Hf0.5Zr0.5O2 thin films

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Lun Sang; [2018]
    Keywords : ferroelectricity; Hf0.5Zr0.5O2; GIXRD; XRR; Technology and Engineering; Physics and Astronomy;

    Abstract : Hafnium dioxide (HfO_2) based thin films doped with various dopants (Si, Ge, Al, Gd, Sr, Zr) have been found to exhibit ferroelectricity. These dopants were found to stabilize the III orthorhombic phase in the hafnium oxide based thin films. READ MORE