液體表面張力測試儀的研究

王萬崗[1,3] 宋文武[2] 張劍虹[4]

[1]西南交通大學電氣工程學院,四川成都610031
[2]西華大學能源與環境工程學院,四川成都610039
[3]成都紡織高等專科學校,四川成都611731
[4]成都東盛包裝材料有限公司,四川成都611731
摘　要:針對傳統液體表面張力測試儀的不足，研發了一種基于虛擬儀器技術的液體表面張力測試儀，并詳細闡述了測量原理及其系統的實現方法。測試結果表明該測試儀可實現液體表面張力自動測試，讀數時間短，有效避免了人為讀數誤差的影響，測量結果的一致性較好。[著者文摘]

Design of liquid surface tension testerWANG Wan-gang,SONG Wen-wu,ZHANG Jian-hong1.School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031 ,China; 2.school of Power and Environment,Xihua University,Chengdu 610039,China; 3.Chengdu Textile College, Chengdu 611731, China; 4.Chengdu Dongsheng Packing Materials Co., Ltd,Chengdu 611731,ChinaAbstract:Based on virtual instrument technology, one kind of liquid surface tension tester was developed to overcome those deficiencies of traditional liquid surface tension testers. And its measuring principle plus the method to construct this system were described in detail. The measurement results indicated that this instrument could be used to automatically test liquid surface tension. And its reading time was very short, which would reduce those errors induced by human reading, effectively. In addition,the consistency of measurement results was very well too.[著者文摘]

Key words:Surface tension; Virtual instrument; Sensor; Data acquisition; Low-pass filter