D L = f L − f r f r ≅ C 1 2 ( C 0 + C L ) MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaadseadaWgaaWcba GaaeitaaqabaGccaaMi8UaaGjcVlaayIW7caaMi8UaaGjcVlaayIW7 cqGH9aqpcaaMi8UaaGjcVlaayIW7caaMi8UaaGjcVlaayIW7caaMi8 UaaGjcVpaalaaabaGaamOzamaaBaaaleaacaqGmbaabeaakiabgkHi TiaadAgadaWgaaWcbaGaaeOCaaqabaaakeaacaWGMbWaaSbaaSqaai aabkhaaeqaaaaakiaayIW7caaMi8UaaGjcVlaayIW7caaMi8UaaGjc VlabgwKiajaayIW7caaMi8UaaGjcVlaayIW7caaMi8+aaSaaaeaaca WGdbWaaSbaaSqaaiaaigdaaeqaaaGcbaGaaGOmaiaayIW7caaMi8Ua aGjcVlaacIcacaWGdbWaaSbaaSqaaiaaicdaaeqaaOGaaGjcVlaayI W7caaMi8Uaey4kaSIaaGjcVlaayIW7caWGdbWaaSbaaSqaaiaabYea aeqaaOGaaGjcVlaayIW7caGGPaaaaiaayIW7caaMi8oaaa@82A9@
where
fr is the resonance frequency;
fL is the load resonance frequency;
C1 is the motional capacitance;
C0 is the shunt capacitance;
CL is the load capacitance