Insights The Poor Man’s Milli-Ohm Meter

  • Thread starter Thread starter neilparker62
  • Start date Start date
  • Tags Tags
    Electrical Meter
Click For Summary
The discussion focuses on the concept of a low-cost milli-ohm meter for measuring very small resistances, particularly under 1 ohm. It highlights the importance of battery technology and calibration for accurate measurements. Users share insights on plotting measured versus nominal resistance values and the relationship between resistance and the length of steel. The conversation emphasizes practical applications and the effectiveness of this DIY approach. Overall, the thread serves as a resource for those interested in affordable solutions for precise resistance measurement.
neilparker62
Science Advisor
Homework Helper
Insights Author
Messages
1,194
Reaction score
686
Hello! I want to generate an RF magnetic field at variable frequencies (from 1 to 20 MHz) using this amplifier: https://www.minicircuits.com/WebStore/dashboard.html?model=LZY-22%2B, by passing current through a loop of current (assume the inductive resistance is negligible). How should I proceed in practice? Can i directly connect the loop to the RF amplifier? Should I add a 50 Ohm in series? Thank you!