Compared with the conventionalstrain gauges, the improved BOTDA measurement is more stable.
与传统应变片相比,该传感技术在使用中更加稳定。
2
Residual stress distribution of FSW has high gradient, which makes the conventionalstrain gauge hole drilling method unsuitable.
应变片钻孔法是工程中应用最广的残余应力测量方法之一。
3
Operational environment and applying temperature of quick - drying cement are given. Fatigue waveform of conventionalstrain gauge and some questions in the test are discussed in the paper.