hello! i am carrying out project on pitch control on a reduced model of turbine blade. the blade is adjusted by a servo motor which itself operates based on strain gauge placed on the blades. however, since i am using a fan to do the testing, the blade tip deflection keeps deflecting in both directions and hence the strain gauge gives varying readings even before the servo can respond. is there any way of filtering the readings such that i get only an average which can allow the servo to respond? help needed please!!