Essays about: "avalanche detection"

Showing result 1 - 5 of 12 essays containing the words avalanche detection.

  1. 1. Single Photon LSCM in the NIR Range

    University essay from KTH/Tillämpad fysik

    Author : Klara Wallenbro; [2022]
    Keywords : LSCM; NIR; SNSPD; LSCM; NIR; SNSPD;

    Abstract : In this thesis a near-infrared laser scanning confocal microscope (NIR-LSCM) is built to operate with optimal performance at 1550nm in combination with simultaneous LED light imaging at 970nm. For detection, a camera equipped with a complementary metal oxide semiconductor (CMOS) sensor and a superconducting nanowire single photon detector (SNSPD) are used for the LED part and the LSCM part, respectively. READ MORE

  3. 2. Practical evaluation of the viability of sensorsand algorithms to detect falling and burial by avalanche

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

    Author : Justus Conradi; Patrik Tiainen; [2021]
    Keywords : Mechatronics; Master thesis; fall detection; burial detection; avalanche; skiing; IMU; FSR; Mekatronik; mastersavhandling; fallavkänning; begravningsavkänning; lavin; skidåkning; IMU; FSR;

    Abstract : Avalanches kill on average 250 people per year. Fall detection algorithms have been used to detect many different types of falls. In this work, a robust humanoid test rigwas designed and built to investigate the use of proven threshold based fall detection algorithms during skiing. READ MORE

  4. 3. Design of a UAV-based radio receiver for avalanche beacon detection using software defined radio and signal processing

    University essay from Uppsala universitet/Signaler och System

    Author : Richard Hedlund; [2019]
    Keywords : Signal processing; Software Defined Radio; Avalanche; Beacon; Antenna; SDR; DSP; Signalbehandling; Mjuvarudefinierad Radio; Lavin; Lavinsändare; Antenn; SDR; DSP;

    Abstract : A fully functional proof of concept radio receiver for detecting avalanche beacons atthe frequency 457 kHz was constructed in the work of this master thesis. The radioreceiver is intended to be mounted on an unmanned aerial vehicle (UAV or drone)and used to aid the mountain rescue teams by reducing the rescue time in findingavalanche victims carrying a transmitting beacon. READ MORE

  5. 4. Avalanche Visualisation Using Satellite Radar

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Aron Widforss; [2019]
    Keywords : snow science; avalanche detection; satellite SAR; avanor;

    Abstract : Avalanche forecasters need precise knowledge about avalanche activity in large remote areas. Manual methods for gathering this data have scalability issues. Synthetic aperture radar satellites may provide much needed complementary data. READ MORE

  6. 5. Development and Characterization of Parallel-Plate Avalanche Counters for Nuclear Physics Experiments

    University essay from Uppsala universitet/Tillämpad kärnfysik

    Author : Matthias Carlsson; [2018]
    Keywords : PPAC; Parallel-Plate Avalanche Counters; Gas Ionizing Detector; Gas Amplification; Characterization; NFS; Radioactive source; Am-241; Cf-252; Fission Fragments; Alpha Particles; Time Resolution; Angular Dependence; Gas Pressure Dependence; Townsend Coefficient; PPAC Design; Manufacture; Manufacturing; Mylar foil; Aluminium Evaporation;

    Abstract : Parallel-plate avalanche counters, PPACs, are commonly used to detect fission fragments. The PPAC detects them and mark (very accurately) the time of detection. Such measurements can be used to measure the neutron energy (via time-of-flight) to study neutron-induced fission. READ MORE