Study on Signal Detection Technology of Small Inductance Planar Coil
FU Zhi-bin · Chuangan jishu xuebao · 2007
Planar coil is a non-contact measuring probe, which is applied widely. However, its inductance is so small (about 1 μH) that it is difficult to detect the coil’s signal.A novel different coefficient circuit is used in the study on signal detection of small inductance coil. Theoretical analysis and experimental result indicate that this technology can pick-up the signal change of planar coil and hold high sensitivity and stability using appropriate parameters.