Sökning: "ultrasound sensors"

Visar resultat 6 - 10 av 27 uppsatser innehållade orden ultrasound sensors.

  1. 6. Evaluation of sensor techniques for detection of contaminants in greywater from showers

    Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

    Författare :Andreas Bengtsson; Kalle Andersson; [2020]
    Nyckelord :Greywater; Ultrasound; IR; Impedance; Detection; Shower; Technology and Engineering;

    Sammanfattning : This thesis has been made in collaboration with the company Orbital Systems. The aim has been to optimize their product the Orbital shower, which is a circulating shower system. The work evaluates different sensor techniques suitable for detection of contaminants in greywater. LÄS MER

  3. 7. Raspberry Pi Based IoT System for Bats Detection at Wind Farms

    Kandidat-uppsats, Blekinge Tekniska Högskola/Institutionen för matematik och naturvetenskap

    Författare :Hemanth Surya Karuturi; Megha Sanjeev Reddy Karri; [2020]
    Nyckelord :Bats; Pattern Recognition; Ultrasonic Frequencies; Ultrasonic Microphone; Ultrasonic Transducer; Wind Turbines;

    Sammanfattning : Context: Large numbers of bats are killed by collisions with wind turbines and there is at present no accepted method of reducing or preventing this mortality. We designed a system, which detects and records any bats’ activity in and around the surroundings of wind turbines. LÄS MER

  4. 8. Trädens inre och yttre ljud - med olika mätmetoder

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för skog och träteknik (SOT)

    Författare :Rosalie Selhorst; [2020]
    Nyckelord :Trees; Sound; Music; Wood Properties; Tree quality; Ultrasound; TreeSonic Timer; Stress Wave Timers Resonance Testers; Synthesizers; Eartrumpet; Sensors; Experiences; Träd; Ljud; Musik; Ved egenskaper; Träd kvalité; Ultraljud; TreeSonic Timer; Stressvågstidtagare Resonanstestare; Synthesizers; Örontrumpet; Sensorer; Upplevelser;

    Sammanfattning : Syftet med denna studie var att beskriva mätmetoder, som mäter träets egenskaper med hjälp av vågrörelser respektive mätmetoder som mäter träds egna vågrörelser. Vidare att undersöka hur människor uppfattar musik från trädens egna ljud (vågrörelser). LÄS MER

  5. 9. Realistic Modelling of Ultrasound Sensing for Autonomous Vehicles

    Master-uppsats, Linköpings universitet/Elektroniska Kretsar och System

    Författare :Houbo Ni; [2019]
    Nyckelord :Ultrasonic sensor; analog signal; experimental setups; measurement methods; impedance; MATLAB;

    Sammanfattning : Ultrasonic sensors are popular in parking functions in automotive. They are used to measure distances between a car and obstacles near the car. Car companies need to prove that sensors are reliable before using them on vehicles since these sensors are safety-critical. LÄS MER

  7. 10. Positioning and parking analysis for an indoor positioning system : A comparative study between Bluetooth Low Energy and Ultra Wideband technology

    M1-uppsats, KTH/Hälsoinformatik och logistik

    Författare :August Brodin Kont; [2019]
    Nyckelord :radio technology; real-time-localization-service; indoor positioning system; Bluetooth Low Energy; Ultra Wideband; accuracy; precision; sensepoint; radioteknologi; realtidslokaliseringstjänst; inomhuspositioneringssystem; Bluetooth Low Energy; Ultra Wideband; noggrannhet; precision; sensepoint;

    Sammanfattning : The work done in this report as requested by H&D Wireless is performed by using an already developed real time positioning system called Griffin Enterprise Positioning Service and integratingit with ultrasound sensors for presence detection in order to enable assets to park in a visualized environment being actualized by tagging the asset with radio technology hardware. The testing environment was deployed with radio technology hardware equipped for transmitting and receiving radio signals for position estimation of tagged objects where hardware tags emits radio signals being received by sensing radio technology chips called sensepoints which also serves as communication links for further data processing. LÄS MER