Monday, July 19, 2021

another inductance meter concept

a dummy sine generator :


Op Amp version :

the x = Δf( L( f ) ) = – 2 · Δf / ( (2π) ²­ · C · f ³ )

where Δf = f(40uH) - f(42uH)

the  y = ΔL( f ) = L(42µH) – L(40µH)

and the best match for the ΔL is a non-std. average E( x , y ) = 2 · x · y / ( x + y )


[Eop]