The Approximation Aspects of Characteristics of Semiconductor Temperature Sensors

Dumčius, A.; Augutis, V.; Gailius, D.

doi:10.5755/j01.eee.112.6.443

Cited by 4 publications

(4 citation statements)

References 8 publications

(8 reference statements)

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“…On the basis of the study results the structure of a handheld device (Fig. 7) for control of temperature in deeper muscle layers via measurement, using thermistors as temperature sensor [20] of the skin surface temperature was designed.…”

Section: Results Of Experimentsmentioning

confidence: 99%

Non-invasive Muscle Temperature Control during Cooling

Sipavičienė

Dumčienė

2013

ElAEE

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The aim of this work was to investigate the possibilities of using the non-invasive method to control the temperature of deep layers in limb tissues during cooling, using thermistors as temperature sensors.The invasive temperature control of the deep tissue layers is not always acceptable to the test subject. The temperature distribution was simulated using computer software, when the limb was cooled in the +15 C temperature water bath and frozen by adding the ice pack. The temperature was measured experimentally by using thermistor as a temperature sensor. The uncertainty of calibrated temperature transducer was ±0.05 C. The 3 cm thickness layer of thermal insulation separated the temperature sensor from the cooling agent.After 30 min of cooling the tissue surface temperature at the sensor attachment point was 31.5±0.65 C. During modeling it was determined, that in case when temperature underneath the sensor was 31.5 C, then the tissue temperature in 30 mm depth should be 31.9 C, what corresponds to the temperature values determined by other researchers using invasive measurements under analogous conditions. On the basis of the study results the structure of a hand-held device for control of temperature in deeper muscle layers via measurement of the skin surface temperature was offered.

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Section: Results Of Experimentsmentioning

confidence: 99%

Non-invasive Muscle Temperature Control during Cooling

Sipavičienė

Dumčienė

2013

ElAEE

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“…Two dissimilar approaches are possible to be used in determining the thermal condition of asynchronous machines. [1] [2] [3] [4] According to the first , an equivalent thermal circuit is set up which usually includes four or five homogeneous bodies such as: 1 -stator pack; 2 -rotor; 3 -stator coil; All these elements with the exception of the last one do generate thermal losses whose values become evident from experimental measurements or calculations. Each body (element) has its own thermal capacity and all of them are interconnected by thermal conductivity which is conductive and convective.…”

Section: Methods For Thermal Investigation Of Asynchronous Electric Machinesmentioning

confidence: 99%

Microprocessor System for Temperature Investigation of Ac Machines

Iliev

Karadzhov

2021

ETR

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The paper is about four channel microprocessor system for temperature measurement during static and running mode. It incorporates microcontroller type PIC18F452 and employs sensors which convert temperature into voltage. In addition it features optional connection to a PC for storing and processing amassed data. Based on this system a new method is proposed for analysing overheating and cooling of individual parts of asynchronous electric machines. A set of differential equations is derived which later on are processed by MATHCAD software. Obtained results can be presented in tabular or graphic form. The outcome of resolving this task is in the relative ease with which it is possible to establish overheat of various machine parts. Similarly, such approach could be applied with other types of electric machines.

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“…Precision thermistors type MF51E103F3380 which are intended for medical equipment were used as temperature sensors [8]. The Steinhart-Hart equation interpolation (10) was used for the description of the thermistor's temperature resistance R(T) characteristics [9]…”

Section: Thmentioning

confidence: 99%

“…Coefficients A0, A1, and A3 were calculated from the thermistor calibration results. Thermistors additionally have been individually calibrated using two-point temperature thermistor calibration procedure [9]. The accuracy of the experimental transducer with thermistors for witch was used the Steinhart-Hart linearization was ±0.02 °C.…”

Section: Thmentioning

confidence: 99%

Deeper-Layer Body Tissue Temperature Control Using Multi-sensory Transducer

Dumčienė

Sipavičienė²

2015

ElAEE

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For the monitoring of deeper layers of human tissue temperature during cooling the four-thermistor transducer was proposed. The Steinhart-Hart equation was used to linearize the temperature-resistance characteristics of thermistors. Transducer structure and temperature fields in the tissues of the body were simulated using COMSOL Multiphysics. The ratio of transducer's equivalent thermal resistances was determined using numerical and physical experiments. The difference of values of the temperature measured at a depth of 30 mm in tissue by invasive and non-invasive method was less than ± 0.5°C.

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The Approximation Aspects of Characteristics of Semiconductor Temperature Sensors

Cited by 4 publications

References 8 publications

Non-invasive Muscle Temperature Control during Cooling

Non-invasive Muscle Temperature Control during Cooling

Microprocessor System for Temperature Investigation of Ac Machines

Deeper-Layer Body Tissue Temperature Control Using Multi-sensory Transducer

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