| Autor: |
S. W. Herwald, R. W. Gemmell, B. J. Lazan |
| Rok vydání: |
1946 |
| Zdroj: |
Journal of Fluids Engineering. 68:713-718 |
| ISSN: |
0097-6822 |
| DOI: |
10.1115/1.4018588 |
| Popis: |
Mechanical oscillators provide an excellent means for obtaining structural serviceability tests. The adjustable-while-running type is particularly flexible. With it the answers to certain fundamentally difficult problems can be obtained quickly. The electrical system presented provides accurate remote control of frequency and phase angle between forces of two or more mechanical oscillators. In addition, means are incorporated for changing and indicating remotely the amount of unbalance of each oscillator unit. Rototrol units used with electronic and magnetic controls are the basic elements of this precise servomechanism. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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