TDR and Microcontrollers
TDR and Microcontrollers
(OP)
Greetings.
Does anyone have experience with TDR for geotechnical applications (e.g., detecting shear plane in a borehole)? Or perhaps TDR knowledge and microcontroller interfacing?
I am looking into designing a SIMPLE, portable system for use in the field. I would appreciate any suggestions or comments.
Thank you.
Does anyone have experience with TDR for geotechnical applications (e.g., detecting shear plane in a borehole)? Or perhaps TDR knowledge and microcontroller interfacing?
I am looking into designing a SIMPLE, portable system for use in the field. I would appreciate any suggestions or comments.
Thank you.





RE: TDR and Microcontrollers
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RE: TDR and Microcontrollers
But I remember borehole shearplane detectors as quite prehistoric, unprecise and unreliable material, so maybe that you'd have a chance with TDR if you already have a customer or a precise target application.
RE: TDR and Microcontrollers
The key to many TDR sensor applictions is the selection and design of the transmission line probe. This would also be the case for detecting the shear plane location in a borehole.
For experiementation, you could start with a used cable-type TDR tester. There are many TDR circuits in the public domain, as well as some technologies that can be licensed (www.getradar.com). The simplest interface to a microcontroller is usually comparators that are triggered by the return, and using the microcontroller to time the comparator signals.
RE: TDR and Microcontrollers
From the context of the post, it was most likely The Dragon Reborn.
Comcokid and felixc:
Thanks for the suggestions. They are most appreciated.