Title :
Development of high resolution snow depth sensor using ultrasonics
Author_Institution :
Autom. Div, Res. Inst. of Ind. Sci. & Technol., Pohang, South Korea
Abstract :
A new digital hardware has been developed to measure the snow depth using ultrasonic sensors. The snow depth is measured with the new hardware. The reflected ultrasonic waveform from the snow surface is analyzed. The conventional TOF measurement with threshold is shown to be not adequate to derive the snow depth. The nonlinear least square method is shown to be effective for the outdoor environment.
Keywords :
hydrological equipment; sensors; snow; ultrasonic devices; high resolution snow depth sensor; nonlinear least square method; reflected ultrasonic waveform; ultrasonics sensor; Digital control; Digital signal processing; Hardware; Pulse transformers; Reflection; Sensor phenomena and characterization; Signal generators; Snow; Surface waves; Ultrasonic variables measurement;
Conference_Titel :
Sensors, 2009 IEEE
Conference_Location :
Christchurch
Print_ISBN :
978-1-4244-4548-6
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2009.5398483
