Method of calibrating and linearizing the output of fluid measuring instruments
September 9, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesDynamic linearization system for a radiation gauge Method of automatically calibrating a microprocessor controlled digital multimeter Curvature correction System for linearizing non-linear transducer signals Respiratory gas analysis instrument having improved volume calibration method and apparatus Electronic circuit for measuring and displaying ion concentration in fluid Infrared gas analyzer having detector elements of differing types Method of and apparatus for automatically compensating for variations in output response characteristics of sensors and the like Patent #: 4481596 InventorAssigneeApplicationNo. 06/530551 filed on 09/09/1983US Classes:702/86, Linearization of measurement702/104Sensor or transducerExaminersPrimary: Gruber, Felix D.Attorney, Agent or FirmInternational ClassesG06F 17/40 (20060101)G01N 33/00 (20060101) G01N 21/25 (20060101) G01N 21/27 (20060101) G01N 21/37 (20060101) G01N 21/31 (20060101) AbstractA method for calibrating and linearizing the output of an instrument that includes a transducer having an output that is a nonlinear function of a property of interest of a fluid. The results of measurements performed on a plurality of transducers of the type to be used in the instrument are used to produce first and second equations which give the direct and inverse responses of a typical transducer. The results of further measurements on the particular transducer to be used in the instrument are used with the first equation to define how the second equation may be used to give accurate results with the particular transducer. The instrument is then calibrated and the results used with the second equation to produce an accurate linearized value for display as the output of the instrument. | |
