一種全自動(dòng)的準(zhǔn)穩(wěn)態(tài)法導(dǎo)熱系數(shù)測(cè)量裝置

一種全自動(dòng)的準(zhǔn)穩(wěn)態(tài)法導(dǎo)熱系數(shù)測(cè)量裝置
Fully Automated Mea uring Apparatu of Thermal Conductivity by u ing Qua i_ teady State Method

摘要在對(duì)準(zhǔn)穩(wěn)態(tài)法測(cè)量導(dǎo)熱系數(shù)原理分析的基礎(chǔ)上，研制了一套用準(zhǔn)穩(wěn)態(tài)法測(cè)量導(dǎo)熱系數(shù)的實(shí)驗(yàn)裝置，克服了以往準(zhǔn)穩(wěn)態(tài)法導(dǎo)熱系數(shù)測(cè)量裝置中存在的一些不足，同時(shí)開(kāi)發(fā)了運(yùn)行于Windows 環(huán)境下的全自動(dòng)測(cè)量軟件。最后利用已知熱物性數(shù)據(jù)的標(biāo)準(zhǔn)試樣有機(jī)玻璃對(duì)裝置進(jìn)行了檢驗(yàn)。實(shí)驗(yàn)結(jié)果表明，所研制的實(shí)驗(yàn)裝置能夠準(zhǔn)確地測(cè)得一定范圍內(nèi)固體試樣的導(dǎo)熱系數(shù)，并可滿足實(shí)際工程
導(dǎo)熱系數(shù)測(cè)量的需要。
關(guān)鍵詞準(zhǔn)穩(wěn)態(tài)法導(dǎo)熱系數(shù)自動(dòng)化測(cè)量
Abstract On the basis of analysis of the principle of the quasi-steady state technique to measure the thermal conductivity，a fully automated apparatus to measure the thermal conductivity was developed.Many disadvantages in previous apparatus had been overcome. In addition，automatic measurement software running in Windows environment was developed. Finally，the apparatus was tested with a calibrated sample of which the thermal property data are known.The experimental results indicated that the apparatus is able to measure thermal conductivity of solid samples precisely in certain range and meet the requirements in engineering application.
Keywords Quasi-steady state method Thermal conductivity Automated measurement