A novel wide range linearization approach for thermistor thermometer

Khan, Anwar A.; Al-Turaigi, M. A.; Alamoud, A.R.M.

doi:10.1109/tim.1987.6312786

Cited by 9 publications

(3 citation statements)

References 5 publications

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“…The nonlinear characteristic will dramatically increase calculation circuit’s area and cost. Many researchers have devoted efforts to resolve this problem, e.g., [ 9 , 10 ]. Sarkar et al uses an inverting operational amplifier with a linear correction resistor to correct the thermistor [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

A High-Precision CMOS Temperature Sensor with Thermistor Linear Calibration in the (−5 °C, 120 °C) Temperature Range

Wang

Hou

You

2018

Sensors

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A high-precision Complementary Metal-Oxide-Semiconductor (CMOS) temperature sensor for (−5 °C, 120 °C) temperature range is designed and analyzed in this investigation. The proposed design is featured with a temperature range selection circuit so that the thermistor linear circuit automatically switches to a corresponding calibration loop in light of the temperature range besides the analysis of the calibration method. It resolves the problem that the temperature range of a single thermistor temperature sensor is too small. Notably, the output of the proposed design also attains a high linearity. The measurement results in a thermal chamber justifying that the output voltage is 1.96 V to 4.15 V, the maximum linearity error ≤1.4%, and the worst temperature error ≤1.1 °C in the temperature range of −5 °C to 120 °C.

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Section: Introductionmentioning

confidence: 99%

A High-Precision CMOS Temperature Sensor with Thermistor Linear Calibration in the (−5 °C, 120 °C) Temperature Range

Wang

Hou

You

2018

Sensors

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“…Its advantages include small volume, high sensitivity, fast reaction-rate, high resolution and so on [1,2]. The temperature coefficient is negative for NTC thermistor.…”

Section: Introductionmentioning

confidence: 99%

An Optimal Linearization Method of Parameter Design for NTC Thermister Interface Circuit

Wang¹,

Yang²,

Jin³

et al. 2017

dtetr

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Abstract.The thermister based temperature measurement scheme is widely applied for its low cost, strong stability and well flexibility. As the property between resistance and temperature is nonlinear, the practical application of thermister usually relies on the method of table look-up. Inevitably, that leads to the problems of poor versatility and large memory cost. Based on the analyses of resistance and temperature property, we propose an optimal linearization method of parameter design for NTC thermister interface circuit in this paper. The proposed approach is simple, but has a good linearity and high sensitivity. Test results are given to support the theoretical analyses and conclusions.

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“…For example, in [2], a total harmonic distortion (THD) of À48 dB has been reported at 400 mV pp , 1.4 V input common-mode voltage, and at a sampling rate of 100 kS/s. In the literature, the linearization techniques have been presented [7][8][9][10]. However, these techniques need extra circuitry.…”

Section: Introductionmentioning

confidence: 99%