Characterization and driving method based on the second harmonic, which is enhancing the quality factor and reducing the feedthrough current in varying gap electrostatic MEMS resonators
Başvuru konusu buluş, elektrostatik sürülen değişken boşluklu rezonatörler için yüksek kalite faktörlü ve kaçak akım etkilerinden arındırılmış yeni bir karakterizasyon yöntemi ile ilgilidir.A method of an open loop characterization of an electrostatic MEMS based resonator with a varying gap, the method including: converting, via a trans-impedance amplifier circuit, an output current signal of the resonator into a voltage; multiplying the output current signal converted into the voltage, by means of a multiplier circuit, with an AC signal or with a different signal at a frequency of the resonator and carrying a second harmonic signal to a main tone; and measuring a frequency response of a signal cleared of frequencies apart from the main tone using a network analyzer
