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Telemetry applied to strain gauging

 

作者: K. J. Phillips,  

 

期刊: Strain  （WILEY Available online 1985）
卷期: Volume 21, issue 1  

页码: 19-22

 

ISSN:0039-2103

 

年代: 1985

 

DOI:10.1111/j.1475-1305.1985.tb00563.x

 

出版商: Blackwell Publishing Ltd

 

关键词: Strain gauge;low level analogues;telemetry;amplitude modulation (AM);frequency modulation (FM);time or pulse duration modulation (PDM);non contact coupling;2 wire transmission;communications and optical links

 

数据来源: WILEY

 

摘要:

An insight into strain gauge telemetry techniques explaining why telemetry can offer interesting advantages over conventional strain gauge systems. The difference between a.c. strain gauge measurements and analogue to digital conversion followed by a.c. transmission is discussed together with the importance of a.c. transmission in the avoidance of drifts and parasitic effects applicable to d.c. systems.A comparison between frequency modulation (FM) and time or pulse duration modulation (PDM) explains why PDM can offer significant advantages.

 

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