tdr

I'm building a TDR pulse generator using a single GaN FET (TP65H300G4LSGB) in high-side configuration, driven by NCP51820. The drain is at 40 V, and the source goes through a 50 Ω resistor to GND. Output is taken from the FET source. My Final target is upto 200v. Pulse specs: ~40 V amplitude...

Hello, first post here. I've built the TDR with the 74ac14 as shown at wae2w yt video () It seems to work fine, but when it comes to test it with a coax 5.55 meters long, I read 72 nS, which according to the average velocity factor of 0.659 it results in 6.24 meters. Is this an error in the...

For a university project, I am designing and am further required to build a sensor fusion device for soil quality measurement in agricultural soil. The device will measure the volumetric water content (VWC) in the soil, the temperature of the soil and the light levels that the soil is exposed...

Hai Friends, I would like to design a soil moisture sensor using TDR technology since TDR based moisture sensors are more accurate than capacitive or resistance-based moisture sensors. But I don't have any idea about it. Can anyone help me in finding a solution for it?