Fig. 2: Theoretical analysis of synchronous detection of dual signals.
From: Synchronous detection of dual signals based on constant-drive technique of weakly coupled resonators
a The variation trend of AR1 with Δk1 and Δk2; b The variation trend of AR2 with Δk1 and Δk2; c AR1 varies with Δk1 and Δk2 (0–0.5 N/m)
