Мазин, Валерий Дмитриевич. Датчики автоматических систем. Метрологический анализ [Электронный ресурс]: учебное пособие / В. Д. Мазин; Санкт-Петербургский государственный политехнический университет. — Электрон. текстовые дан. (1 файл : 1,52 Мб). — СПб., 2011. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Текстовый файл. — Adobe Acrobat Reader 6.0. — <URL:http://elib.spbstu.ru/dl/2082.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2012 | Quarter 1 | 1 | 0 | 1 | 0 | 2 |
| Quarter 2 | 5 | 0 | 5 | 0 | 10 | |
| Quarter 3 | 1 | 0 | 2 | 0 | 3 | |
| Quarter 4 | 10 | 0 | 15 | 0 | 25 | |
| Year 2013 | Quarter 1 | 4 | 0 | 4 | 0 | 8 |
| Quarter 2 | 36 | 0 | 19 | 0 | 55 | |
| Quarter 3 | 13 | 0 | 5 | 0 | 18 | |
| Quarter 4 | 26 | 0 | 10 | 0 | 36 | |
| Year 2014 | Quarter 1 | 40 | 0 | 27 | 0 | 67 |
| Quarter 2 | 46 | 0 | 21 | 0 | 67 | |
| Quarter 3 | 45 | 0 | 18 | 0 | 63 | |
| Quarter 4 | 53 | 0 | 28 | 0 | 81 | |
| Year 2015 | Quarter 1 | 53 | 0 | 14 | 0 | 67 |
| Quarter 2 | 54 | 0 | 10 | 0 | 64 | |
| Quarter 3 | 23 | 0 | 12 | 0 | 35 | |
| Quarter 4 | 34 | 0 | 16 | 0 | 50 | |
| Year 2016 | Quarter 1 | 69 | 0 | 8 | 0 | 77 |
| Quarter 2 | 83 | 0 | 8 | 0 | 91 | |
| Quarter 3 | 46 | 0 | 3 | 0 | 49 | |
| Quarter 4 | 22 | 0 | 9 | 0 | 31 | |
| Year 2017 | Quarter 1 | 18 | 0 | 6 | 0 | 24 |
| Quarter 2 | 24 | 0 | 21 | 0 | 45 | |
| Quarter 3 | 15 | 0 | 12 | 0 | 27 | |
| Quarter 4 | 9 | 0 | 13 | 0 | 22 | |
| Year 2018 | Quarter 1 | 9 | 0 | 34 | 0 | 43 |
| Quarter 2 | 28 | 0 | 45 | 0 | 73 | |
| Quarter 3 | 13 | 0 | 36 | 0 | 49 | |
| Quarter 4 | 13 | 0 | 23 | 0 | 36 | |
| Year 2019 | Quarter 1 | 13 | 0 | 9 | 0 | 22 |
| Quarter 2 | 8 | 0 | 4 | 0 | 12 | |
| Quarter 3 | 8 | 0 | 9 | 0 | 17 | |
| Quarter 4 | 2 | 0 | 5 | 0 | 7 | |
| Year 2020 | Quarter 1 | 4 | 0 | 20 | 0 | 24 |
| Quarter 2 | 7 | 0 | 2 | 0 | 9 | |
| Quarter 3 | 12 | 0 | 0 | 0 | 12 | |
| Quarter 4 | 4 | 0 | 10 | 0 | 14 | |
| Year 2021 | Quarter 1 | 7 | 0 | 4 | 0 | 11 |
| Quarter 2 | 7 | 0 | 8 | 0 | 15 | |
| Quarter 3 | 4 | 0 | 6 | 0 | 10 | |
| Quarter 4 | 6 | 0 | 23 | 0 | 29 | |
| Year 2022 | Quarter 1 | 11 | 0 | 20 | 0 | 31 |
| Quarter 2 | 5 | 0 | 8 | 0 | 13 | |
| Quarter 3 | 16 | 0 | 11 | 0 | 27 | |
| Quarter 4 | 10 | 0 | 6 | 0 | 16 | |
| Year 2023 | Quarter 1 | 9 | 0 | 7 | 0 | 16 |
| Quarter 2 | 7 | 0 | 4 | 0 | 11 | |
| Quarter 3 | 2 | 0 | 7 | 0 | 9 | |
| Quarter 4 | 8 | 0 | 13 | 0 | 21 | |
| Year 2024 | Quarter 1 | 8 | 0 | 7 | 0 | 15 |
| Quarter 2 | 20 | 0 | 22 | 0 | 42 | |
| Quarter 3 | 13 | 0 | 25 | 0 | 38 | |
| Total | 984 | 0 | 655 | 0 | 1,639 | |