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Showing papers by "V. R. K. Murthy published in 1990"


Journal ArticleDOI
TL;DR: In this article, a review describes the recent developments in microwave dielectric resonator material characteristics and the synthesisation methods are presented briefly, critical parameters involved in the Dielectric Resonator Oscillator (DRO) circuit designs are also reported.
Abstract: The review describes the recent developments in microwave dielectric resonator material characteristics. The synthesisation methods are presented briefly. Critical parameters involved in the Dielectric Resonator Oscillator (DRO) circuit designs are also reported.

19 citations


Journal ArticleDOI
TL;DR: In this paper, a microprocessor-based resistivity measurement system for high transition temperature (T/sub c/) superconducting materials is described, which includes interfacing an Intel 8085 microprocessor system with an IBM-compatible personal computer (PC) through RS-232C serial communication.
Abstract: The design of a microprocessor-based resistivity measurement system for high transition temperature (T/sub c/) superconducting materials is described. This design includes interfacing an Intel 8085 microprocessor system with an IBM-compatible personal computer (PC) through RS-232C serial communication. This design is used to measure resistivity for superconducting samples of YBa/sub 2/Cu/sub 3/O/sub 7-x/ and strontium/potassium substituted YBa/sub 2/Cu/sub 3/O/sub 7-x/. A correction method is described for the parameters whose values are changing throughout the measurement period to minimize the measurement errors. >

1 citations