The Development of TDR Technology at Home and Abroad

At present, for the measurement of impedance, time domain reflection technology is a well-known method of impedance measurement at home and abroad. This method allows the impedance to change with the change of the test length of the signal channel, and the change of the impedance is expressed in the form of the reflected voltage. It not only can calculate the characteristic impedance on the signal channel, but also can locate the characteristic impedance mutation position accurately.
TDR time domain reflection technology has been proposed as early as the 1960s, after a long period of extensive research, produced a large number of TDR impedance tester in foreign countries. These instruments monopolized the domestic PCB impedance detection field in recent years. After years of unremitting efforts, Zhengye Technology jointly with the University of Electronic Science and Technology, organized research team successfully developed based on time domain reflection technology ASIDA TDR impedance test, broke the monopoly pattern, has been the customer's praise in the field of PCB impedance detection.