Essays about: "MEMS"

Showing result 6 - 10 of 57 essays containing the word MEMS.

  1. 6. Fast Clock Synchronization for Large-Scale MEMS Ultrasonic Transducer Arrays

    University essay from Linköpings universitet/Institutionen för systemteknik

    Author : Karl-Johan Karlsson; [2022]
    Keywords : clock synchronization; clock deskew; MEMS transducer; Delay line; Time-to-Digital conveter;

    Abstract : In many systems today sensors or transmitters need to be read or controlled simultaneously. This thesis investigates a new architecture used for deskewing clock signals between multiple separated parts of a signal transmission system. READ MORE

  3. 7. PTZ Camera Tampering Correction Using IMUs

    University essay from Lunds universitet/Institutionen för reglerteknik

    Author : Ludvig Hansson; Måns Lindeberg; [2022]
    Keywords : Technology and Engineering;

    Abstract : The Pan-Tilt-Zoom (PTZ) camera is a type of camera that covers large areas, up to 360°, in addition to zoom. Some of these cameras are susceptible to tampering, which means that an additional angle measurement feedback is necessary to detect such attempts. This thesis has evaluated the possibility of using MEMS-based IMUs to solve this problem. READ MORE

  4. 8. Investigation of MEMS-Based Acoustic Levitation for Pick-and-Place Machines

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

    Author : Alejandro Bergstrand; Lukas Malm; [2021]
    Keywords : Mechatronics; Acoustic levitation; Pick and place machine; Standing wave levitation; MEMS; Acoustic traps; Surface mount electronic components; Mekatronik; Akustsik levitering; Pick and place maskin; Stående våg; MEMS; Akustiska fällor; ytmontering;

    Abstract : The standard technology used in a pick and place machine for lifting and transportingsurface mount electronic components is a vacuum based solution.  This thesis investigates a new acoustic based technology for manipulating surface mountelectronic components. READ MORE

  5. 9. Investigation of Light and Ultrasound Injected Signals in Microphones

    University essay from Linköpings universitet/Elektroniska Kretsar och System

    Author : Robin Djerv; [2021]
    Keywords : LightCommands; DolphinAttack; MEMS Microphone; Signal Injection; Security;

    Abstract : Voice commanded systems (VCS) have been proved to be vulnerable to signal in- jections mimicking voice commands and explored security flaws in market avail- able products for the time of each respective study. Signal injection caused with the help of amplitude modulated ultrasonic waves (being known as DolphinAt- tacks - DA) were proved to work on several such devices in 2017. READ MORE

  6. 10. Towards an improvement of BLE Direction Finding accuracyusing Dead Reckoning with inertial sensors

    University essay from Malmö universitet/Fakulteten för teknik och samhälle (TS)

    Author : Tove Rumar; Ludvig Juelsson Larsen; [2021]
    Keywords : Dead Reckoning; Inertial Sensors; Sensor Fusion; Indoor Positioning; Direction Finding;

    Abstract : Whilst GPS positioning has been a well used technology for many years in outdoor environments,a ubiquitous solution for indoor positioning is yet to be found, as GPS positioning is unreliableindoors. This thesis focuses on the combination of Inertial Sensor Dead Reckoning and positionsobtained from the Bluetooth Low Energy (BLE) Direction Finding technique. READ MORE