Formation of a high stability NTC thick film by low-temperature sintering of Co2.77Mn1.71Fe1.10Zn0.42O8 ceramics containing Bi2O3-B2O3-SiO2-ZnO glass frits

Huo, P.; Wang, Junhua; Liu, Yi; Yan, Yuquan; Liu, Ziang; Shi, Chenyu; Chang, Aimin; Yao, Jincheng

doi:10.1016/j.sna.2022.113951

Cited by 5 publications

(2 citation statements)

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“…The inherent nonlinearity of NTC thermistors is a challenge [21], but the nonlinear characteristics of NTC thermistors can be mitigated through circuit design and programmatic interventions by using the resistance ratio model and precisely fitting the resistancetemperature equation of the NTC [22,23]. The purpose of this design is to give full play to the characteristics of high sensitivity and insensitivity to environmental vibration of the NTC thermistor and use it as a probe to build a temperature measurement system for industry.…”

Section: Introductionmentioning

confidence: 99%

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Design of a Negative Temperature Coefficient Temperature Measurement System Based on a Resistance Ratio Model

Liu,

Huo,

Yan

et al. 2024

Sensors

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In this paper, a temperature measurement system with NTC (Negative Temperature Coefficient) thermistors was designed. An MCU (Micro Control Unit) primarily operates by converting the voltage value collected by an ADC (Analog-to-Digital Converter) into the resistance value. The temperature value is then calculated, and a DAC (Digital-to-Analog Converter) outputs a current of 4 to 20 mA that is linearly related to the temperature value. The nonlinear characteristics of NTC thermistors pose a challenging problem. The nonlinear characteristics of NTC thermistors were to a great extent solved by using a resistance ratio model. The high precision of the NTC thermistor is obtained by fitting it with the Hoge equation. The results of actual measurements suggest that each module works properly, and the temperature measurement accuracy of 0.067 °C in the range from −40 °C to 120 °C has been achieved. The uncertainty of the output current is analyzed and calculated with the uncertainty of 0.0014 mA. This type of system has broad potential applications in industry fields such as the petrochemical industry.

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Section: Introductionmentioning

confidence: 99%

“…The uncertainty of the temperature inhomogeneity of the thermostatic oil bath is u(t s2 ). The maximum temperature difference of the thermostatic oil bath is 0.003 • C. Considering it as a uniform distribution, u(t s2 ) is calculated as Equation (23).…”

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confidence: 99%