WANG Kong-zheng. Research on piezoelectric bender element measurement system based on virtual instrument technology[J]. 2010, 29(9): 89-90+93. DOI: 10.13873/j.1000-97872010.09.005.
In order to satisfy the demand of high precision of shear wave velocity measurement in soil mechanics and geotechnical engineering
a set of piezoelectric bender element system was developed based on virtual instrument technology.The system mainly consists of piezoelectric bender elements
power amplifier
charge amplifier
and computer
et al.The measurement software was programmed by LabVIEW
and the functions of signal generator and data acquisition were realized by the sound card.The system has the advantage of cost-effective
and high measurement efficiency.It has been successfully applied to measure the shear wave velocity of sand.