Difference between revisions of "Chadburn's Speed Indicator"
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It had three relays, and could indicate whether turbines were going ahead or astern, as well as, in some manner involving a pointer and a counter, the speed. Its short description in the ''Annual Report of the Torpedo School, 1915'' seems to indicate that the electrical relays in turn drove the winding of a clockwork mechanism with a spiral spring. The clockwork action of alternately being wound and released seems to have taken the derivative of the driving shaft, indicating this speed through a pointer on a dial. | It had three relays, and could indicate whether turbines were going ahead or astern, as well as, in some manner involving a pointer and a counter, the speed. Its short description in the ''Annual Report of the Torpedo School, 1915'' seems to indicate that the electrical relays in turn drove the winding of a clockwork mechanism with a spiral spring. The clockwork action of alternately being wound and released seems to have taken the derivative of the driving shaft, indicating this speed through a pointer on a dial. | ||
| − | It was employed, at least, in {{UK- | + | It was employed, at least, in {{UK-1Arethusa}}.{{ARTS1915|p. 249}} |
==See Also== | ==See Also== | ||
Latest revision as of 15:13, 10 November 2016
Chadburn's Speed Indicator was an electrical data system to display a shaft's rotational speed on a dial.
It had three relays, and could indicate whether turbines were going ahead or astern, as well as, in some manner involving a pointer and a counter, the speed. Its short description in the Annual Report of the Torpedo School, 1915 seems to indicate that the electrical relays in turn drove the winding of a clockwork mechanism with a spiral spring. The clockwork action of alternately being wound and released seems to have taken the derivative of the driving shaft, indicating this speed through a pointer on a dial.
It was employed, at least, in Arethusa.[1]
See Also
Footnotes
- ↑ Annual Report of the Torpedo School, 1915. p. 249.
Bibliography
- H.M.S. Vernon. (Jan 1916) Annual Report of the Torpedo School, 1915. C.B. 1166. Copy 1025 at The National Archives. ADM 189/35.
