Acquisition of ice properties using mechanically generated impulses

Author

Wrinch, M. ; O´Young, Siu ; Williams, McKay

Author_Institution

Hedgehog Technol., Vancouver, BC

Volume

1

fYear

2003

fDate

22-24 Oct. 2003

Firstpage

1

Lastpage

6

Abstract

A practical method and sensor system for ice depth profiling has been developed. Experiments were performed in real-time with developed high sensitivity, biaxial, wide bandwidth accelerometers (10 KHz bandwidth), which encompassed a high sampling rate of 200 Kb/sec/channel with a dynamic range of 36 dB. The implementation of signal processing produced a seismic and resonant signature. Initially repeated results revealed an accurate correlation between ice depth to its impulse response. The required velocity was determined using the time of arrival and the cross-correlation between transducers. Theoretical analysis has indicated that the system will be capable of resolving values close to the theoretically calculated error of less than 6%

Keywords

accelerometers; correlation methods; ice; sensors; signal processing equipment; transient response; 10 kHz; biaxial wide bandwidth accelerometers; cross-correlation; high sensitivity accelerometers; ice depth profiling; ice properties; impulse response; mechanically generated impulses; resonant signature; sampling rate; seismic signature; sensor system; signal processing; time of arrival; Accelerometers; Bandwidth; Dynamic range; Ice; Mechanical factors; Resonance; Sensor systems; Signal processing; Signal sampling; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2003. Proceedings of IEEE

Conference_Location

Toronto, Ont.

Print_ISBN

0-7803-8133-5

Type

conf

DOI

10.1109/ICSENS.2003.1278884

Filename

1278884