Srivastava , Sunil and Sinha, Sanjiv and Bandopadhyay, L.K. and Thakur, P.N. (1991) Microprocessor based switching of intrinsically safe power surface to underground methane sensor in down link and data from underground to surface in uplink on same pair of conductors. Research and Industry , 36 (4). pp. 268-270. ISSN 0034-513 X

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Attempts to reduce power consumption of catalytic bead type methane sensor has been described and a novel method of intermittently feeding power to methane sensor and other underground units of computerized data monitoring system has been discussed. Reliability of methane readings displayed on a surface computer in both the cases, that is, continuous and intermittant power to methane sensor has been compared. The advantage gained by the technique thereby avoiding development of self generating methane sensors for such systems have been dealt with. The technique does not require separate cable for power and data transmission. It is a novel technique for intermittently feeding intrinsically safe power in time division multiplexing mode to methane sensors in a data monitoring system for mines using microprocessor based switching.

Item Type: Article
Subjects: Instrumentation
Depositing User: Dr. Satyendra Kumar Singh
Date Deposited: 12 Feb 2012 06:59
Last Modified: 12 Feb 2012 06:59

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