| Автор | Hartnell, Geo |
| Дата выпуска | 1936 |
| dc.description | Four Z‐variometers of the knife‐edge type were operated simultaneously at the Cheltenham Magnetic Observatory for six weeks in 1935. Their relative performance was determined by comparing the ordinates for four periods of one hour for each day. The results indicate that variometers of this type, carefully designed and of superior workmanship, can be operated satisfactorily for observatory purposes, if they are kept free from mechanical jars and the supporting surfaces are kept clean. |
| Формат | application.pdf |
| Копирайт | Copyright 1936 by the American Geophysical Union. |
| Название | A 42‐day comparison of four vertical‐intensity variometers of the knife‐edge type |
| Тип | article |
| DOI | 10.1029/TE041i001p00065 |
| Electronic ISSN | 0096-8013 |
| Print ISSN | 0096-8013 |
| Журнал | Terrestrial Magnetism and Atmospheric Electricity |
| Том | 41 |
| Первая страница | 65 |
| Последняя страница | 73 |
| Выпуск | 1 |
| Библиографическая ссылка | Published by permission of the Director,United States Coast and Geodetic Survey. |
| Библиографическая ссылка | , Publikationer fra Det Danske Meteorologiske Institut,No. 8,1930. |
