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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0718058 (1991-06-20) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 19 인용 특허 : 0 |
One or more sources of steady magnetic field are carefully located on the outside of a valve body. The constant magnetic field is transmitted into the valve body and valve internals. A magnetic field detector carefully located on the outside of the valve body detects the intensity of the magnetic fi
A monitor for detecting movement of a valve element movably mounted in a valve housing, comprising: at least one source of constant magnetic field fixedly disposed externally of said valve housing in proximity to said valve element, said magnetic field of said source being transmitted into said valv
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