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Design of a platinum resistance thermometer temperature measuring transducer and improved accuracy of linearizing the output voltage

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Measurement Techniques Aims and scope

Abstract

An improved method is presented for designing a temperature measuring transducer, the electrical circuit of which comprises an unbalanced bridge, in one arm of which is a platinum resistance thermometer, and containing a differential amplifier with feedback. Values are given for the coefficients, the minimum linearization error is determined, and an example is also given of the practical design of the transducer, using the given coefficients. A determination is made of the limiting achievable accuracy in linearizing the output voltage of the measuring transducer, as a function of the range of measured temperature.

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Authors
  1. V. M. Malygin
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Additional information

Translated from Izmeritel'naya Tekhnika, No. 1, pp. 48–50, January, 1995.

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Malygin, V.M. Design of a platinum resistance thermometer temperature measuring transducer and improved accuracy of linearizing the output voltage. Meas Tech 38, 84–88 (1995). https://doi.org/10.1007/BF00976753

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  • DOI: https://doi.org/10.1007/BF00976753

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