RU2223465C1 - Method for calibrating measuring transducers incorporating integrated sensing element - Google Patents

Method for calibrating measuring transducers incorporating integrated sensing element Download PDF

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Publication number
RU2223465C1
RU2223465C1 RU2002121952/11A RU2002121952A RU2223465C1 RU 2223465 C1 RU2223465 C1 RU 2223465C1 RU 2002121952/11 A RU2002121952/11 A RU 2002121952/11A RU 2002121952 A RU2002121952 A RU 2002121952A RU 2223465 C1 RU2223465 C1 RU 2223465C1
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RU
Russia
Prior art keywords
values
quantities
input
mathematical model
channels
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RU2002121952/11A
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Russian (ru)
Inventor
С.В. Емец
И.Н. Полищук
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Ооо "Нпп "Грант"
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Abstract

FIELD: measurement technology. SUBSTANCE: method includes discrimination of main and additional measuring channels in transducer corresponding to measured and affecting input quantities, measurement of output quantities at different combinations of input quantities. generation of transducer mathematical model using results of experiment, and evaluation of input quantities. Novelty is that parameters of transducer mathematical model expressed in factors approximating polynomia of measuring channels are found from values of input and output quantities of main channels and those of output quantities of additional channels. Values of quantities being measured are found from parameters of mathematical model and from values of all output quantities of transducer. Mathematical model parameters can be found using least square criterion. EFFECT: facilitated procedure due to dispensing with stabilization and measurement of affecting factors to find input self-explanatory quantities. 2 cl, 1 dwg, 1 tbl

Description

Текст описания в факсимильном виде (см. графическую часть) Description text in facsimile form (see graphic part)

Claims (2)

1. Способ градуировки измерительных преобразователей с интегрированным чувствительным элементом, включающий выделение в преобразователе основных и дополнительных измерительных каналов, соответствующих измеряемым и влияющим входным величинам, измерение значений выходных величин измерительного преобразователя при различных комбинациях его входных величин, формирование по результатам эксперимента математической модели измерительного преобразователя и определение значений входных величин, отличающийся тем, что параметры математической модели измерительного преобразователя, выраженные в виде коэффициентов аппроксимирующих полиномов измерительных каналов, получают по значениям входных и выходных величин основных каналов и значениям выходных величин дополнительных каналов, а значения измеряемых величин определяют по параметрам математической модели и значениям всех выходных величин измерительного преобразователя.1. A method for calibrating measuring transducers with an integrated sensor element, including isolating the main and additional measuring channels in the converter corresponding to the measured and influencing input quantities, measuring the values of the output values of the measuring transducer for various combinations of its input values, forming, according to the results of the experiment, a mathematical model of the measuring transducer and determination of input values, characterized in that the parameters of the mathematical eskoy transmitter model, expressed as the measurement channels approximating polynomials coefficients obtained from the values of the input and output variables and values of the main channels of additional channels of output values and the measured values determined by the parameters of the mathematical model and the values of all the output values of the transmitter. 2. Способ по п.1, отличающийся тем, что параметры математической модели измерительного преобразователя определяют по критерию наименьших квадратов.2. The method according to claim 1, characterized in that the parameters of the mathematical model of the measuring transducer are determined by the least squares criterion.
RU2002121952/11A 2002-08-16 2002-08-16 Method for calibrating measuring transducers incorporating integrated sensing element RU2223465C1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2503968C1 (en) * 2012-04-24 2014-01-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный нефтяной технический университет" Method to correct characteristics of measuring converters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2503968C1 (en) * 2012-04-24 2014-01-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный нефтяной технический университет" Method to correct characteristics of measuring converters

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Effective date: 20110726