Synthesis of polycrystalline samples Bi1-xNdxFeO3 [x = 0.5, 0.6, 0.7 and 0.8] were demonstrated following solid-state reaction method at high temperature. The structural properties the sample confirmed through X-ray diffraction technique. dielectric study compounds was performed different frequencies in range 100 Hz – 10 6 for various temperatures. non-Debye type relaxation process from impedan...

Libbrecht and Libbrecht recently described a thermoelectric temperature controller for which they claimed an absolute accuracy of 100 mK. They did not specify the heat-dissipation coefficient for their thermistor temperature sensor-which would dissipate more power than is usual in such circuits- nor make any allowance for self-heating in the thermistor. Self-heating can be expected to have intr...

Textiles provide an ideal structure for embedding sensors for medical devices. Skin temperature measurement is one area in which a sensor textile could be particularly beneficial; pathological skin is normally very sensitive, making the comfort of anything placed on that skin paramount. Skin temperature is an important parameter to measure for a number of medical applications, including for the...

This paper addresses the challenges of selecting a suitable method for negative temperature coefficient (NTC) thermistor-based measurement in electronic devices. Although accuracy is great importance, calculation time represents an even greater challenge since it inherently constrained by control algorithm executed microcontroller (MCU). Firstly, simple signal conditioning circuit with NTC ther...

This study forms part of a research programme to investigate the relationships between the rise in core temperature and the environmental temperature in soldiers exercising at a constant rate. The measurement of core temperature is a fundamental requirement for this research. The aim of this study was to evaluate the use of an infra-red tympanic thermometer (IVAC Corecheck) for use in thermal p...

Abstract Following the circular economy concept, all areas of science, including electronics, require individual approach. The green electronics approach implies processing natural based materials for development electronic components even single use, so that waste does not exist. This paper describes production thermistors from 3 different types edible materials, their testing in laboratory co...

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...

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...

Purpose The purpose of this work was to characterize NiMn 2 O 4 spinel-based thermistor powder, use it in screen printing technology fabricate temperature sensors, study their performance for different sintering temperatures layer, with and without insulative cover, as well investigate stability the fabricated thermistors applicability water quality monitoring. Design/methodology/approach After...

Background: A thermistor is a nonlinear sensor requiring precise calibration technique to achieve accurate temperature measurements. This paper attempts design employing artificial neural network (ANN) algorithms. The present work fulfills the following objectives: (i) cover 100% input range in linearity measurement; (ii) make measurement adaptiv...