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Sampling oscilloscope and vector network analyser for measuring high frequency properties of linear networks
发布者:管理员 日期:2017/7/3 浏览次数: 993次

Dr. Dmitriy Makhnovskiy

Advanced Composites Manufacturing Centre

Plymouth University, UK 

时间:2017年07月03、04、05日  13:30-15:00

地点:硅材料重点实验室4号楼复材所205会议室

邀请人:彭华新 教授,秦发祥  研究员


Abstract: The aim of the series of lectures is to introduce a proper measurement strategy in the time or frequency domain. In practice, two fundamentally different measurement techniques are used. In sampling oscilloscopes, using the stroboscopic principle, repeated "voltage steps" are fed into the system to observe its response. Each step has an infinite spectrum ~1/f. On the contrary, in vector network analysers (VNA), a sinusoidal signal feeding into the system is swept in a certain frequency range (fstart, fstop) to observe a dispersive response of the system.

The program is divided into Two specialist parts which include:

1.Introduce how two different measurement techniques —— the time and frequency domains, are realized at the instrumental level.

2. Contact and free space microwave measurements with applications to signal integrity,magneto-impedance sensors, and composite materials with the microwire inclusions.     

Dr. Dmitriy Makhnovskiy got his Bachelor and Master  degree in Physics from Physics Department, Moscow State University, Russia in 1987 and 1993 respectively. He  got his Ph.D.

In  Applied Physics, from School of Computing and Mathematics, Plymouth University, UK.

Since  2014 he worked as the Director in Sensing Materials Technology Ltd, UK; Senior Engineering

Physicist, RoBAT Ltd, UK.  He also is a Research Scientist in the Advanced Composites Manufacturing Centre, Plymouth University, School of Marine Science and Engineering, UK.





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