Device for measuring the relative position of two objects

摘要: A device for measuring the relative position of two objects by variation capacitance. The comprises a capacitive detector differential type which has at least first electrodes adapted to be mechanically connected one and second electrode other object forming with capacitances vary as function objects. These are in ratio is only this position. There provided circuit determining values these capacitances. further switching means selectively connecting said input value so measure successively also parasitic capacitance inherent system.