 ##  [Time Domain Reflectometry](/time-domain-reflectometry) 

  ##  [Time Domain Reflectometry](https://engineering.quantumdictionary.io/time-domain-reflectometry-0) 

  
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**Engineering &amp; Applied Technologies Dictionary**

 
Definition

A diagnostic measurement method that launches a fast edge or narrow pulse into a transmission line and records time-resolved reflected signals; by mapping reflection time to distance using the line's propagation velocity, it locates and characterizes impedance discontinuities and distributed impedance profiles.