The vale-maintained tuning-fork as a precision time-standard
Open Access
- 3 May 1923
- journal article
- Published by The Royal Society in Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character
- Vol. 103 (721) , 240-260
- https://doi.org/10.1098/rspa.1923.0054
Abstract
The system of driving a mechanical oscillator by means of a triode was first described by Eccles (1). As applied to the maintenance of vibration of a tuning-fork, the method possesses very great advantages over any previously arranged electro-mechanical method. The complete absence of any attachments to the vibrator, together with the property of perfect self-starting, enables conditions of steadiness in operation to do realised which would not do otherwise possible. One such tuning-fork in use at the N. P. L. controls a multi-vibrator (2) and so forms the foundation of the radio-frequency standards of the laboratory.Keywords
This publication has 2 references indexed in Scilit:
- The Use of the Triode Valve in Maintaining the Vibration of a Tuning ForkProceedings of the Physical Society of London, 1918
- A Small Direct-current Motor Using Thermionic Tubes Instead of Sliding ContactsProceedings of the Physical Society of London, 1918