10.14489/td.2018.08.pp.046-053

2018, 08 August

DOI: 10.14489/td.2018.08.pp.046-053

Chernyshov V. N., Zharikova M. V., Chernyshov A. V.
MICROWAVE EXPRESS METHOD OF EFFECTIVE HEATING TO IMPROVE THE ACCURACY OF MEASUREMENT OF THERMOPHYSICAL CHARACTERISTICS OF BUILDING MATERIALS AND PRODUCTS
(pp. 46-53)

Abstract. Considered microwave rapid method and implements its information-measuring system (IMS) for the determination of thermophysical characteristics (TFH) building materials and products using microwave pulse heating of the investigated objects. Method involves exposure to a pulse of electromagnetic radiation of microwave range, is focused on the surface of the object lens antenna in a line of given size and directed at angle ?’ to the surface of the object, and the angle ?’ is calculated according to the developed algorithm taking into account the attenuation of the electromagnetic wave according to the depth of material (dielectric) and the angle of refraction of electromagnetic waves at the boundary between the surface of the investigated object and the environment the measurement of excess temperatures at specified points of the surface and determining the desired TFH on the basis of the mathematical relationships. For the implementation of the proposed method was developed microprocessor information-measuring system.

Keywords: nondestructive testing, thermal diffusivity, thermal conductivity, microwave heating, building heat engineering.

+ - About the Authors Click to collapse

V. N. Chernyshov, M. V. Zharikova, A. V. Chernyshov (Federal State Budgetary Educational Institution of Higher Education “Tambov State Technical University”, Tambov, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Chernyshov V. N., Chernyshova T. I. (2016). Methods and information-measuring systems of non-destructive control of thermophysical properties of materials and products. St. Petersburg: Ekspertnye resheniya. [in Russian language]
2. Chernyshov V. N., Odnol'ko V. G., Chernyshov A. V. (2012). Methods and systems for non-destructive testing of thermophysical characteristics of building materials and products. Moscow: ID "Spektr". [in Russian language]
3. Chernyshov V. N., Chernyshova T. I (2015). Microwave methods and systems for monitoring the thermophysical characteristics of materials and products. Tambov: FGBOU VO "TGTU". [in Russian language]
4. Chernyshov V. N., Golikov D. O., Chernyshov A. V. (2010). Method for determining the thermophysical characteristics of building materials (options). Ru Patent No. 2399911. Russian Federation. [in Russian language]
5. Chernyshov V. N., Chernyshov A. V., Zharikova M. V. (2015). The method of nondestructive testing of thermophysical characteristics of building materials and products. Ru Patent No. 2570596. Russian Federation. [in Russian language]
6. Pyushner G. (1968). Heating by microwave energy. Moscow: Energia. [in Russian language]
7. Lykov A. V. (1967). Theory of heat conductivity. Moscow: Vysshaia shkola. [in Russian language]
8. Franchuk A. U. (1969). Tables of heat engineering indicators of building materials. Moscow: NII stroitel'noy fiziki. [in Russian language

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

DOI: 10.14489/td.2018.08.pp.046-053

Copy the article DOI and follow the link https://id-spektr.ru/product/pokupka-elektronnoy-stati-iz-zhurnala-kontrol-diagnostika

Please specify the article DOI in the order comments.