Stochastic Two-bit On-line Temperature Measurement with RTD Pt-100 Sensor Operating in a Nonlinear Mode

• Abstract:

  The paper proposes a method and device for on-line temperature measurement with Pt-100 sensor operating in a nonlinear mode. The sensor measures the temperature in range of 0 °C to 200 °C, whereas the measured data are processed by applying a two-bit stochastic digital measurement method. The proposal is theoretically analyzed and tested experimentally. It is shown that the accuracy of the method depends on the accuracy of the sensor. At a sampling frequency of 1 MHz, the maximum accuracy is reached in 17.5 s and is equal to 0.015 % of full scale (FS). On the other hand, when the measurement time interval is 0.1 s (the shortest measurement interval), the accuracy is equal to 0.1 % of FS. Therefore, the proposed device can be used for both calibration and measurement purposes.
• Download:

  IMEKO-TC4-2020-67.pdf
• DOI:

  _unreg_tc4-2020.67

Event details:

• IMEKO TC:

  TC4
• Event name:

  TC4 Symposium 2020 (ONLINE)
• Title:

  24^th IMEKO TC4 Symposium and 22^nd International Workshop on ADC and DAC Modelling and Testing (IWADC)

• Place:

  Palermo, ITALY
• Time:

  14 September 2020 - 16 September 2020