The Development of Three-Dimensional Force Measuring System Applied in Wind Tunnel Test

摘要

The objective of this research is to describe a three-dimensional force measuring system operating in wind tunnel test to investigate the static and dynamic effects of buildings under wind loads. A three-decker structure serves as the elastic element of the three-dimensional force sensor. The solution for overload in the courses of transport, installation and employment is proposed. The set-in hardware circuit is devised to improve the signal-to-noise ratio. A portable box of multiplex data acquisition was designed to achieve synchronous measurement. Multiple sensors were utilized in the measurement of the reacted forces for a rigid model with multiple supporting components in wind tunnel test. The experimental results could provide reference value and significance in the innovation and engineering of industrial measurement.