GUO Jun-jie1, ZHAO Wei-qian1, QIU Li-rong1, et al. Design of high precision angular measurement system based on differential capacitor[J]. 2009, 28(8): 96-98+101.
GUO Jun-jie1, ZHAO Wei-qian1, QIU Li-rong1, et al. Design of high precision angular measurement system based on differential capacitor[J]. 2009, 28(8): 96-98+101. DOI: 10.13873/j.1000-97872009.08.033.
A novel high precision angular measurement system is introduced.Resistor-capacitor bridge is composed of differential capacitor inclination sensor and precise resistor with good temperature characteristic
and Wen’s oscillating bridge is used for excitation source.The analog DC signal which is changed by analog circuit mode is converted into the data signal by a high resolution and low power 18-bit A/D converter MAX132.A technique of temperature compensation is presented by a thermistor which is connected with the referent circuit of A/D converter.The high resolution
high stability and low power of this system is demonstrated by experiment.