Al’manac of Modern Metrology № 4 (20) 2019

The fourth this year — the twentieth from the beginning of the release — issue of the «Almanac of Modern Metrology» No. 4 (20) 2019 is devoted to important issues of metrology — electrical, time-frequency, and hydroacoustic measurements.
The issue begins with a preface of the chief editor who raises the crucial question of modern metrology — about the prospects for the development of the most important metrological directions.
Another work is also devoted to this topic — on the prospects of physical and technical measurements at the present stage.
A separate section presents issues of practical metrology related to technological support of research, including repair works on measuring instruments.
The traditional section of the issue is devoted to the founders of metrological directions.
Contents of the issue