发明名称 Fast technique for converting sampled analog measurements of a physical quantity to values expressed in engineering unit format
摘要 An engineering unit converter system for converting an analog measurement into an engineering value. An analog measurement of a physical quantity is transformed into a digital value. The digital value is then split into a high order digit and a lower order digit. The high order digit is used as an address to a memory device for fetching a line segment coefficient and a line segment offset coefficient. The lower order digit is multiplied with the line segment coefficient in a multiplier resulting in a product. The product is added to the line segment coefficient offset resulting in a sum whose value is an engineering unit. One embodiment is directed to converting temperature measurements into engineering units via thermocouples. This embodiment includes: thermocouple devices, resistance thermal devices or positive temperature coefficient thermistors, adders, multipliers, and memory devices (readable and writable memory devices).
申请公布号 US5581247(A) 申请公布日期 1996.12.03
申请号 US19940267020 申请日期 1994.06.14
申请人 HEWLETT-PACKARD COMPANY 发明人 KELLY, CHRISTOPHER P. J.
分类号 G01D3/02;G01D3/036;G01K1/02;(IPC1-7):G08C19/16 主分类号 G01D3/02
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