EAN: 9783031794964

SYNTHESIS LECTURES ON EMERGING ENGINEERING TECH...

This book offers a comprehensive review of innovative measurement and monitoring solutions
based on time domain reflectometry (TDR). This technique has numerous applications in several
fields  ranging from the characterization of electronic devices to quality control of vegetable
oils. However  most of the well-established TDR-based monitoring solutions rely on local or
punctual probes  therefore  typically  to monitor large areas volumes  a high number of probes
must be employed  with the consequent maintenance and management requirements. On such bases 
in the last few years  the authors have carried out extensive research on the use of diffused
wire-like sensing elements to be used as probes for TDR measurements. The basic idea has been
to extend the principles of punctual TDR-based monitoring to multi-purpose networks of diffused
sensing elements (SE's)  embedded permanently within the systems to be monitored (STBM's).
These SEs can be tens of meters long  and can follow any desired path inside the STBM.  in fact
they are inactive inside the STBM. Additionally  these SE's are passive (i.e.  they do not
require batteries) and their sensing ability is activated  by the TDR signal  when they are
connected to the measurement instrument. In addition to this  these SE's are completely
maintenance-free.Starting from these considerations  this book addresses the use of low-cost 
passive  flexible  wire-like SE's to be used in conjunction with TDR.This book also provides
several application test cases  with hints for practical implementation of the described
monitoring systems.

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