| || PC based data acquisition system for thermal conductivity measurement of snow
Author : Singh, A. K.;Deo, Vrushali;Pant, G. C.
Source : Defence Science Journal ; Vol:54(4) ; 2004 ; pp 515-524
Subject : 681.2 Instrumentation;681.3 Computer Science;551 Geology
Keywords : PC based data acquisition system;Thermal conductivity;Snowcover;Thermal probe;Transient method;RS 485/422 protocol;ADAM4520;Avalanche forecasting
Abstract : A PC-based data acquisition/measurement system has been presented for the thermal conductivity of snow, using thermal probe. The thermal probe is a transient method of thermal conductivity measurement and has advantages in terms of short-run time, smaller temperature rise, and in situ measurement applications. The developed data acquisition system does intelligent management of different sensors for thermal conductivity, and is based on RS-232 serial communication with RS-485 data conversion, providing additional advantage of long-distance measurement in field conditions. The hardware and software features of the system are described and its performance for different materials along with test results, is presented.