원문정보
초록
영어
This paper presents the detection and diagnosis of air-conditioner electromagnetic sound through noise measurements. Electromagnetic sound originating from the motor is an unpleasant source of unwanted noise that should be detected at the manufacturing stage. A detection system using sound measurements was built and a detection algorithm based on FFT analysis is presented. Sound measurements are preferable over direct vibration measurement because it is non-contact and low cost. Experimental results show that our sound measurement system can detect electromagnetic sound effectively compared to using vibration measurements.
목차
1. 서론
2. 소음의 위치 검출 및 방법
2.1 신호의 도달 지연 시간 값
2.2 두 개의 마이크 사용으로 위치 추적 방법
3. 실험 및 결과
3.1 실험 구성 요소
3.2 실험 결과
4. 결론
후기
참고문헌