Design of Vickers Hardness Loading Controller
Sihai Zhao, Ge Guo, Yunlong Hu, Jia Tie, Fan Zhang, Lingyu Jiao · DOAJ (DOAJ: Directory of Open Access Journals) · 2014
Traditionally Vickers testing needs manual works, as a result, it will induce low precision and automatization. So this paper design a new type of loading controlling system, it is based on single chip computer 89S52, used PZT as the force generator in micro Vickers hardness testing. It primarily includes the designing of hardware, software of collecting data and PZT signals by AD667. This article has given the sketch of electrical circuit and controlling software, it also offers the experiment data. The experiments have showed that using this system can exactly control the loading results, and the average tolerance is less than 0.43 %.