IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0375649
(2003-02-26)
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발명자
/ 주소 |
- Schuster, Richard Francis
- Ashby, Malcolm John
- Wiseman, Matthew William
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
26 인용 특허 :
5 |
초록
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A method and apparatus for detecting an impending failure of a process sensor is provided. The method includes determining a sensor output noise component, and comparing the output noise component to a historical sensor output noise signature based on at least one of the range of span of the sensor
A method and apparatus for detecting an impending failure of a process sensor is provided. The method includes determining a sensor output noise component, and comparing the output noise component to a historical sensor output noise signature based on at least one of the range of span of the sensor and the process operating conditions. The apparatus includes a computing device including a processor and a memory communicatively coupled to the processor wherein the processor is programmed to execute a software product code segment that includes a comparator, a data historian, an isolator module, and a limit module. The computing device is configured to detect impending failure of a sensor using an output signal noise component of the sensor and wherein the sensor senses a parameter of a process associated with the computing device.
대표청구항
▼
A method and apparatus for detecting an impending failure of a process sensor is provided. The method includes determining a sensor output noise component, and comparing the output noise component to a historical sensor output noise signature based on at least one of the range of span of the sensor
A method and apparatus for detecting an impending failure of a process sensor is provided. The method includes determining a sensor output noise component, and comparing the output noise component to a historical sensor output noise signature based on at least one of the range of span of the sensor and the process operating conditions. The apparatus includes a computing device including a processor and a memory communicatively coupled to the processor wherein the processor is programmed to execute a software product code segment that includes a comparator, a data historian, an isolator module, and a limit module. The computing device is configured to detect impending failure of a sensor using an output signal noise component of the sensor and wherein the sensor senses a parameter of a process associated with the computing device. ach, Jr. et al., 128/786; US-5050601, 19910900, Kupersmith et al., 128/419.D; US-5056516, 19911000, Spehr, 128/419; US-5063932, 19911100, Dahl et al., 128/639; US-5076285, 19911200, Hess et al., 128/186; US-5083562, 19920100, de Coriolis et al., 128/419; US-5105826, 19920400, Smits et al., 128/784; US-5107834, 19920400, Ideker et al., 128/419; US-5111811, 19920500, Smits, 128/419.D; US-5111812, 19920500, Swanson et al., 128/419.D; US-5129404, 19920700, Spehr et al., 128/785; US-5133353, 19920700, Hauser, 128/419; US-5133365, 19920700, Heil, Jr. et al., 128/786; US-5152299, 19921000, Soukup, 128/785; US-5165403, 19921100, Mehra, 128/419.D; US-5174303, 19921200, Schroeppel, 128/786; US-5203348, 19930400, Dahl et al., 128/784; US-5209229, 19930500, Gilli, 128/419.D; US-5230337, 19930700, Dahl et al., 607/005; US-5259394, 19931100, Bens, 607/127; US-5259395, 19931100, Li, 607/131; US-5261400, 19931100, Bardy, 607/005; US-5269319, 19931200, Schulte et al., 128/786; US-5271417, 19931200, Swanson et al., 607/122; US-5282845, 19940200, Bush et al., 607/128; US-5300108, 19940400, Rebell et al., 607/127; US-5300110, 19940400, Latterell et al., 607/130; US-5314459, 19940500, Swanson et al., 607/122; US-5324327, 19940600, Cohen, 607/122; US-5342414, 19940800, Mehra, 607/127; US-5344439, 19940900, Otten, 607/126; US-5358516, 19941000, Myers et al., 607/116; US-5366496, 19941100, Dahl et al., 607/132; US-5374286, 19941200, Morris, 607/119; US-5383908, 19950100, Sweeney et al., 607/005; US-5397342, 19950300, Heil, Jr. et al., 607/129; US-5405373, 19950400, Petersson et al., 607/121; US-5411544, 19950500, Mar et al., 607/122; US-5425755, 19950600, Doan, 607/119; US-5425756, 19950600, Heil, Jr. et al., 607/128; US-5447533, 19950900, Vachon et al., 607/120
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