Linearization of NTC Thermistor Characteristic Using Op-Amp Based Inverting Amplifier

Sarkar, Anasua; Dey, Debangshu; Munshi, Sugata

doi:10.1109/jsen.2013.2267332

Cited by 36 publications

(10 citation statements)

References 24 publications

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“…The nonlinearity of the response is compensated by the series-parallel resistance circuit (SPR) or Wheatstone bridge circuit by optimizing their components values (Nenova and Nenov, 2009). Other methods utilize Op-amp based inverting amplifier circuits (Sarkar et al, 2013).…”

Section: Linearization Of Thermistor Responsementioning

confidence: 99%

“…The third group of methods involves the linear conversion of temperature into frequency or time period of the output signal. Linearization feature of the circuit has been realized by the correct choice of the thermistor parameters and the frequency selective passive components (Kaliyugavaradan et al, 1993;Nenova and Nenov, 2009;Sarkar et al, 2013). In the study of Nenova and Nenov (2009), the thermistor response is linearized by identifying the linear regions and varying the thermistor characteristics parameter (β) using a timer circuit.…”

Section: Linearization Of Thermistor Responsementioning

confidence: 99%

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Linearization of the sensors characteristics: a review

Islam¹,

Mukhopadhyay

2019

International Journal on Smart Sensing and Intelligent Systems

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Today, the sensing devices play an important role for various system automation and monitoring of different physical and chemical parameters. Nonlinearity is an important long-time issue for most of the sensors, so to compensate nonlinearity, various linearization schemes are reported in the literature. The accuracy of linearization schemes depends on the type and the nonlinearity value of the sensor output. Since it is difficult to find an exact polynomial equation or other functions to represent the response curve; it gives more error when the measurement parameter is determined from the inverse approximation functions. As many sensors are used for different applications, the linearized characteristics will simplify the design, calibration, and accuracy of the measurement. This paper presents a review of different methods applied to linearize sensor characteristics reported in the literature. Due to availability of high-performance analog devices, analog methods are still popular among many researchers. However, due to the advancement of IC technologies, hardware implementation of the software methods can be done easily with reduced time, cost, and more accuracy, so the digital methods combined with software techniques perform the job with better flexibility and efficiency.

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Section: Linearization Of Thermistor Responsementioning

confidence: 99%

Section: Linearization Of Thermistor Responsementioning

confidence: 99%

Linearization of the sensors characteristics: a review

Islam¹,

Mukhopadhyay

2019

International Journal on Smart Sensing and Intelligent Systems

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show abstract

“…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%

“…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 ]. However, it has serious temperature error at the lowest and highest temperatures.…”

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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“…The various SCCs are devised using operational amplifier (op-amp)-based circuit configurations for thermistor linearisation. These techniques are suitable for the specified temperature range [3][4][5]. Later, researchers have designed linearisers to produce frequency and/or digital output directly.…”

Section: Introductionmentioning

confidence: 99%

T–S fuzzy‐based multi‐LAE approach for sensor linearisation

Kannan

2018

IET Science, Measurement & Technology

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Linearization of NTC Thermistor Characteristic Using Op-Amp Based Inverting Amplifier

Cited by 36 publications

References 24 publications

Linearization of the sensors characteristics: a review

Linearization of the sensors characteristics: a review

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

T–S fuzzy‐based multi‐LAE approach for sensor linearisation

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