[특허]Flow sensor with conditioning-coefficient memory

Honeywell International Inc.

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Flow sensor with conditioning-coefficient memory

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01F-001/12 G06F-011/00
미국특허분류(USC)	702/100; 702/181; 702/188; 702/190
출원번호	US-0383834 (2006-05-17)
등록번호	US-8175835 (2012-05-08)
발명자 / 주소	Dmytriw, Anthony M. Ricks, Lamar F.
출원인 / 주소	Honeywell International Inc.
대리인 / 주소	Honeywell International Inc.
인용정보	피인용 횟수 : 6 인용 특허 : 105

초록

A sensor includes one or more sensor transducers coupled with a signal conditioning IC incorporating signal conditioning circuitry and memory devoted to storing end-user downloadable coefficients. In a preferred embodiment, the IC is an ASIC and the end-user downloadable coefficients are pre-selected by the end-user based on its needs, and the coefficients are pre-stored in the ASIC when the sensor is calibrated. This results in a more cost-effective and space-efficient sensor device with improved functionality over that available in the prior art.

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1. A sensor apparatus comprising: a first sensor transducer sensing a first parameter and outputting a first raw signal corresponding to said sensed first parameter;signal-conditioning circuitry receiving said first raw signal output from said first sensor transducer, performing a coarse-correction on said first raw signal to produce a first coarsely-conditioned signal, and outputting said first coarsely-conditioned signal via a first sensor output; anda storage location storing predetermined sensor-specific correction coefficients, said stored predetermined sensor-specific correction coefficients being provided to a second sensor output such that an end-user device, when coupled to the first and second sensor outputs, performs a fine-correction on said first coarsely-conditioned signal output from said signal-conditioning circuitry. 2. The sensor apparatus of claim 1, further comprising: a second sensor transducer sensing a second parameter and outputting a second raw signal corresponding to said sensed second parameter;wherein said signal-conditioning circuitry receives said second raw signal output from said second sensor transducer, performs a coarse-correction on said second raw signal to produce a second coarsely-conditioned signal, and outputs said second coarsely-conditioned signal via said first sensor output. 3. The sensor apparatus of claim 1, wherein: said signal-conditioning circuitry and said storage location are coupleable to the end-user device;when said signal conditioning circuitry and said storage location are coupled to the end-user device, said end-user device receives said first coarsely-conditioned signal from said first sensor output and said stored predetermined sensor-specific correction coefficients from said second sensor output; andsaid end-user device performs said fine-correction on said first coarsely-conditioned signal using said stored correction coefficients. 4. The sensor apparatus of claim 2, wherein: said signal-conditioning circuitry and said storage location are coupleable to the end-user device;when said signal conditioning circuitry and said storage location are coupled to the end-user device, said end-user device receives said first coarsely-conditioned signal and said second coarsely-conditioned signal from said first sensor output and said stored predetermined sensor-specific correction coefficients from said second sensor output; andsaid end-user device performs said fine-correction on said first coarsely-conditioned signal and/or said second coarsely-conditioned signal using said stored predetermined sensor-specific correction coefficients. 5. The sensor apparatus of claim 1, wherein said stored predetermined sensor-specific correction coefficients are pre-selected based on requirements provided by an end-user of said sensor apparatus. 6. The sensor apparatus of claim 2, wherein said stored predetermined sensor-specific correction coefficients are pre-selected based on requirements provided by an end-user of said sensor apparatus. 7. The sensor apparatus of claim 1, wherein said signal conditioning circuitry and said storage location are configured as an ASIC. 8. The sensor apparatus of claim 2, wherein said signal conditioning circuitry and said storage location are configured as an ASIC. 9. The sensor device of claim 1, wherein said storage location comprises an EEPROM. 10. The sensor device of claim 2, wherein said storage location comprises an EEPROM. 11. The sensor device of claim 1, wherein said first sensor transducer comprises a flow sensor-transducer. 12. A method of conditioning a sensor signal, comprising: configuring a first sensor transducer to sense a first parameter and output a first raw signal corresponding to said sensed first parameter;configuring a signal-conditioning circuit to receive said first raw signal output from said first sensor transducer, perform a coarse-correction on said first raw signal to produce a first coarsely-conditioned signal, and output said first coarsely-conditioned signal via a first sensor output;configuring a storage location to store predetermined sensor-specific correction coefficients; andoutputting the stored predetermined sensor-specific correction coefficients to a second sensor output such that an end-user device, when coupled to the first and second sensor outputs, performs a fine-correction on said first coarsely-conditioned signal output from said signal-conditioning circuitry. 13. The method of claim 12, further comprising: configuring a second sensor transducer to sense a second parameter and output a second raw signal corresponding to said sensed second parameter;configuring said signal-conditioning circuitry to receive said second raw signal output from said second sensor transducer, perform a coarse-correction on said second raw signal to produce a second coarsely-conditioned signal, and output said second coarsely-conditioned signal via said first sensor output. 14. The method of claim 12, wherein said signal-conditioning circuitry and said storage location are coupleable to the end-user device, said method further comprising: when said signal conditioning circuitry and said storage location are coupled to the end-user device, outputting to said end-user device said first coarsely-conditioned signal from said first sensor output and said stored predetermined sensor-specific correction coefficients from said second sensor output; andperforming, using said end-use device, said fine-correction on said first coarsely-conditioned signal using said stored predetermined sensor-specific correction coefficients. 15. The method of claim 13, wherein said signal-conditioning circuitry and said storage location are coupleable to the end-user device, said method further comprising; when said signal conditioning circuitry and said storage location are coupled to the end-user device, outputting to said end-user device said first coarsely-conditioned signal and said second coarsely-conditioned signal from said first sensor output and said stored predetermined sensor-specific correction coefficients from said second sensor output; andperforming, using said end-user device, said fine-correction on said first coarsely-conditioned signal and/or said second coarsely-conditioned signal using said stored predetermined sensor-specific correction coefficients. 16. The method of claim 12, wherein said signal conditioning circuitry and said storage location are configured as an ASIC. 17. The method of claim 13, wherein said signal conditioning circuitry and said storage location are configured as an ASIC. 18. The method of claim 12, wherein said storage location comprises an EEPROM. 19. The method of claim 13, wherein said storage location comprises an EEPROM. 20. The method of claim 12, wherein said first sensor transducer comprises a flow sensor-transducer. 21. A sensor apparatus comprising: a plurality of sensor transducers, each sensing a parameter and outputting a raw signal corresponding to it respective sensed parameter;signal-conditioning circuitry receiving said each raw signal output from said plurality of sensor transducers, performing a coarse-correction on each of said raw signals to produce a coarsely-conditioned signal corresponding to each raw signal, and outputting each coarsely-conditioned signal via a first sensor output; anda storage location storing predetermined sensor-specific correction coefficients, said stored predetermined sensor-specific correction coefficients being provided to a second sensor output such that an end-user device, when coupled to the first and second sensor outputs, performs a fine-correction on each coarsely-conditioned signal output from said signal-conditioning circuitry. 22. A sensor apparatus comprising: a first sensor transducer sensing a first parameter and outputting a first raw signal corresponding to said sensed first parameter;signal conditioning circuitry configured to receive said first raw signal that is output from said first sensor transducer, perform a first correction on said first raw signal to produce a first conditioned signal, and output said first conditioned signal via a first sensor output;a storage location configured to store predetermined sensor specific correction coefficients, said stored predetermined sensor specific correction coefficients being provided to a second sensor output such that an end-user device, when coupled to the first and second sensor outputs, performs a second correction on said first conditioned signal that is output from said signal conditioning circuitry;a second sensor transducer configured to sense a second parameter and output a second raw signal corresponding to said sensed second parameter; andwherein said signal conditioning circuitry is configured to receive said second raw signal output from said second sensor transducer, perform a third correction on said second raw signal to produce a third conditioned signal, and output said third conditioned signal via said first sensor output. 23. The sensor apparatus of claim 22, wherein said storage location is configured to store the predetermined sensor specific correction coefficients for use in performing a fourth correction on said third conditioned signal that is output from said signal conditioning circuitry. 24. A The sensor apparatus of claim 22, wherein comprising: a first sensor transducer sensing a first parameter and outputting a first raw signal corresponding to said sensed first parameter; signal conditioning circuitry configured to receive said first raw signal that is output from said first sensor transducer, perform a first correction on said first raw signal to produce a first conditioned signal, and output said first conditioned signal via a first sensor output;a storage location configured to store predetermined sensor specific correction coefficients for use in performing a second correction on said first conditioned signal that is output from said signal conditioning circuitry;said signal conditioning circuitry and said storage location are coupleable to an end-user device;wherein when said signal conditioning circuitry and said storage location are coupled to the end-user device, said end-user device receives said first conditioned signal from said first sensor output and said stored predetermined sensor specific correction coefficients from a second sensor output; andsaid end-user device performs said second correction on said first conditioned signal using said stored predetermined sensor specific correction coefficients. 25. A sensor apparatus of claim 22, wherein comprising: a first sensor transducer sensing a first parameter and outputting a first raw signal corresponding to said sensed first parameter; signal conditioning circuitry configured to receive said first raw signal that is output from said first sensor transducer, perform a first correction on said first raw signal to produce a first conditioned signal, and output said first conditioned signal via a first sensor output;a storage location configured to store predetermined sensor specific correction coefficients for use in performing a second correction on said first conditioned signal that is output from said signal conditioning circuitry;the storage location provides the predetermined sensor specific correction coefficients to a coefficient output of the sensor apparatus, wherein an end-user device receives the stored predetermined sensor specific correction coefficients from the coefficient output of the sensor apparatus as well as the first conditioned signal from the first sensor output, and performs the second correction on said first conditioned signal.

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Flow sensor with conditioning-coefficient memory

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Flow sensor with conditioning-coefficient memory

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