POSITION SENSOR

• Main Authors: JANG JIN SEOK, KWON BYUNG WOOK, JUNG JAE MOON
• Format: Patent
• Language: English; Korean
• Published: 11.03.2021
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

According to the present invention, a position sensor comprises: a stator having a circuit unit in a pattern; a rotor disposed to face the stator to be repetitively operated; and a terminal electrically connected to the circuit unit and an outer device. The circuit unit has a transmission pattern where voltage is applied in the outside and has a plurality of reception patterns where the voltage having different phases is applied by repetitive operation of the rotor. The present invention improves sensor accuracy by increasing a frequency of the voltage of the transmission pattern without an increase of a voltage size of the reception pattern. 본 발명의 위치센서는 패턴으로 회로부가 형성된 고정자; 상기 고정자에 대향 배치되어 반복 운동하는 회전자; 및 상기 회로부 및 외부장치와 전기적으로 연결되는 터미널;을 포함하고, 상기 회로부는 외부에서 전압이 인가되는 발신패턴과, 상기 회전자의 반복 운동에 의해 서로 다른 위상을 갖는 전압이 인가되는 복수의 수신패턴으로 형성되는 것을 특징으로 하여, 수신패턴의 전압 크기의 증가 없이 발신패턴의 전압의 주파수를 높여 센서 정확도를 향상시킨다.