| Автор | C F Brockelsby |
| Дата выпуска | 1963-04-01 |
| dc.description | The history of ultrasonics is outlined, to provide a background for the discussion of presentday applications. These can be classified as processing, testing and communications.In processing applications, ultrasonic vibration at high power densities is used to produce a physical or chemical change in material. In liquids, the effective agent is often cavitation, which causes emulsification and dispersion, useful for cleaning and atomization.Focused ultrasound is used for surgery. Echo sounding techniques are used for testing materials as well as at sea. They have recently been applied in medical diagnosis. Ultrasonography by image-forming methods may be an alternative method. The high frequency elastic properties of a material can be measured with great precision and give information about its structure.The most important `communications' application is in ultrasonic delay lines, which are useful in radar and data-handling systems. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Some applications of ultrasonics |
| Тип | paper |
| DOI | 10.1088/0950-7671/40/4/304 |
| Print ISSN | 0950-7671 |
| Журнал | Journal of Scientific Instruments |
| Том | 40 |
| Первая страница | 153 |
| Последняя страница | 157 |
| Аффилиация | C F Brockelsby; Mullard Research Laboratories, Redhill, Surrey |
| Выпуск | 4 |
