粘土基陶瓷热力学分析装置

IF 1 4区工程技术 Q4 INSTRUMENTS & INSTRUMENTATION

Measurement Science Review Pub Date : 2023-06-01 DOI:10.2478/msr-2023-0017

T. Húlan, I. Štubňa, Omar Al-Shantir, A. Trník

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引用次数: 0

摘要

摘要介绍了一种利用脉冲激励技术(IET)测量试样弯曲振动共振频率和内部阻尼的动态热力分析(D-TMA)装置。由于测量是在高达1250°C的温度下进行的，因此使用电磁脉冲器进行激励。自由振动由驻极体麦克风记录下来，存储起来，然后用快速傅立叶变换转换成频谱，从中可以找到谐振频率。该炉由耐火多孔氧化铝砖和氧化铝纤维衬垫建成。加热元件是连接到温度控制器的四个SiC棒。温度是用靠近样品的Pt-PtRh10热电偶测量的。

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The Apparatus for Thermomechanical Analysis of Clay-based Ceramics

Abstract A dynamic thermomechanical analysis (D-TMA) apparatus is described for measuring the resonant frequency of the flexural vibration and the internal damping of the sample using the impulse excitation technique (IET). Since the measurement is conducted at temperatures up to 1250 °C, an electromagnetic impulser is used for excitation. The free vibrations are registered by an electret microphone, stored and then converted into a frequency spectrum using the fast Fourier transform, from which the resonant frequency can be found. The furnace is built from refractory porous alumina bricks and alumina fiber pads. The heating elements are four SiC rods connected to a temperature controller. The temperature is measured with a Pt-PtRh10 thermocouple in close proximity to the sample.

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来源期刊

Measurement Science Review INSTRUMENTS & INSTRUMENTATION-

CiteScore

2.00

自引率

11.10%

发文量

审稿时长

4.8 months

期刊介绍： - theory of measurement - mathematical processing of measured data - measurement uncertainty minimisation - statistical methods in data evaluation and modelling - measurement as an interdisciplinary activity - measurement science in education - medical imaging methods, image processing - biosignal measurement, processing and analysis - model based biomeasurements - neural networks in biomeasurement - telemeasurement in biomedicine - measurement in nanomedicine - measurement of basic physical quantities - magnetic and electric fields measurements - measurement of geometrical and mechanical quantities - optical measuring methods - electromagnetic compatibility - measurement in material science