Naslov (srp)

Optimizacija i modelovanje senzorskih sistema na bazi debeloslojnih segmentiranih nikl manganitnih NTC termistora

Autor

Aleksić, Stanko

Doprinosi

Mitrović, Nebojša
Obradović, Nina
Mitrović, Nebojša
Luković, Miloljub

Opis (srp)

The topic of this dissertation are three kinds of sensor systems made of NTC thermistors (thickfilm type). The thermistors as sensor components were applied for different measurements: 1 groundtemperature profile, 2. flow rate (liquids), and 3. wind velocity. Thermistors pastes are developed usingthe initial nickel manganese NiMn2O4 and modified nickel manganese Cu0,2Ni0,5Zn1,0Mn1,3O4 powders,organic vehicle and glass frits. Thick film thermistors have a complex planar cell-based structure of serial/ parallel (segmented) type, which is optimized for monitoring a heat change and transfer in the operatingmedia (fluids or ground). Analysis of electrical phenomena in thick film self-heating thermistors was doneat different fluid flow regime. Analysis of ground temperature profile was based on daily temperaturemeasurements at different depth points of the arable ground top layer during whole year cycle. The electricalresponses on realized prototypes of sensor systems based on the NTC thermistors (thick films) weremeasured and initially analysed as a function of a few ambient parameters which affect the application range, sensitivity and inaccuracy of measurements. All mentioned experiments and analyses of electricalphenomena in the thick film thermistors and sensor systems were done with intention of modeling of the responses and defining of the application range. The physical laws which describe the thermistor operation were used and appropriate mathematical-physical equations were derived. The application of the described prototypes (sеnsor systems) in this dissertation is expected in industry, agriculture and meteorology

Opis (srp)

-

Jezik

srpski

Datum

2022

Licenca

Ovo delo je licencirano pod uslovima licence
Creative Commons CC BY-NC 3.0 AT - Creative Commons Autorstvo - Nekomercijalno 3.0 Austria License.

http://creativecommons.org/licenses/by-nc/3.0/at/legalcode