Preparation of chip type negative temperature coefficient thermistor

Spark Plasma Sintering of Negative Temperature Coefficient Thermistor Ceramics

A New Structure for Direct Measurement of Temperature Based on Negative Temperature Coefficient Thermistor and Adaptive Neuro-fuzzy Inference System

Thermistors are very commonly used for narrow temperature-range high-resolution applications, such as in medicine, calorimetry, and near ambient temperature measurements. In particular, Negative Temperature Coefficient (NTC) thermistor is very inexpensive and highly sensitive, whose sensing temperature range and sensitivity are highly limited due to the intrinsic nonlinearity and self-heating p...

Micro-PCR Chip NTC-Thermistor Sensor-Calibration System

In this paper, we implement a Steinhart-Hart calibration-factor value measurement system to obtain accurate temperature measurements of a negative-temperature coefficient thermistor. The thermistor is mounted on a micro-polymerase chain reaction (PCR) chip in a micro-PCR systemthat requires accurate temperature measurement and control. When obtaining the calibration-factor value, it is impossib...

Unipolar memristive Switching in Bulk Negative Temperature Coefficient Thermosensitive Ceramics

A memristive phenomenon was observed in macroscopic bulk negative temperature coefficient nickel monoxide (NiO) ceramic material. Current-voltage characteristics of memristors, pinched hysteretic loops were systematically observed in the Ag/NiO/Ag cell. A thermistor-based model for materials with negative temperature coefficient was proposed to explain the mechanism of the experimental phenomen...

Calibration of Buffer-less system for thermistor temperature measurement

This paper presents a temperature measurement system without the input buffer. A voltage follower or a buffer is required to minimize the influence of the ADC input impedance in the thermistor temperature measurement system. In such system, a high performance operational amplifier is usually required to prevent the noise and distortion due to the additional circuit. Negative power is also neces...