摘要
介绍了锤击法小应变信号桩基动测仪的原理,针对动态验桩特点,利用数模转换板的电阻网络构成运算放大器,提出了一个具有反馈回路的程控增益电路,下位机采用STD总线结构,硬件模块化设计,软硬件共同构成可使验桩具有手控和自动程控增益功能;上位机软件采用开放式结构,可挂接不同的小应变法动测验桩分析处理软件包。
A new type of intelligcnt stick base strdin gauge using hammer stricking is in-troduced in this paper.the light of dynamic measurement chardcters,a programcontrolled amplify circuit is developed with both hands auto-gained. The STD busconstruction is adopted in the service computer and the software used used in main computerhas an open constructlon.