Position sensor and changeable capacitance module of same

• Main Authors: HE JIANZHI, LIU WEILIANG, HUANG ZIXUAN, HE CHAOREN
• Format: Patent
• Language: Chinese; English
• Published: 29.08.2017
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides a position sensor and a changeable capacitance module of the same. The position sensor comprises the changeable capacitance module and a circuit board. The changeable capacitance module comprises a baseplate and a dielectric coupling substance, wherein the baseplate comprises a baseplate body, a grounding electrode and two power source electrodes; the grounding electrode and the two power source electrodes are disposed on the baseplate body; the power source electrodes are disposed on the other side at an interval; the dielectric coupling substance and the two power source electrodes are set at an interval and the dielectric coupling substance is used to move along an action path. When the dielectric coupling substance moves along the action path, covering conditions for the dielectric coupling substance to cover the two power source electrodes and the grounding electrode will be changed. When a power source supplies power to the two power source electrodes in an alternating manner, a p