Parameter amplification method in tunable grid structure micro mechanical gyroscope, and device thereof
A technology of micromechanical gyroscope and parameter amplification, which is applied in the direction of measuring device, gyro effect for speed measurement, gyroscope/steering sensing equipment, etc., to achieve the effect of improving sensitivity
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[0032] Such as figure 1 As shown, the steps of the parametric method in the tunable grid structure micromachined gyroscope are as follows:
[0033] 1) The driving signal generation module uses the field programmable gate array chip to generate the AC driving signal and the carrier signal, uses the reference voltage chip to generate the DC driving signal, and adds the AC driving signal and the DC driving signal through the operational amplifier chip of the driving signal generating circuit The subtraction generates two driving signals. The form of the two drive signals is V d =V d-DC ±V d-AC cos(ωt), where V d-AC is the driving DC component, V d-AC For the driving AC amplitude, ω is the driving frequency. The driving AC amplitude and driving frequency can be adjusted in real time by serial port communication to the parameters in the field programmable gate array chip. When the driving frequency increases at a fixed interval within a certain frequency range, the frequency ...
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