The failure analysis and repair of a sticking Lucas B.M. type ammeter.
| Identifier | ExFiles\Box 168\5\ img364 | |
| Date | 28th April 1941 | |
| Bm/RC. {R. Childs} 5/ST.28.4.41. AMMETER. ------- A Lucas B.M. type ammeter, No.2, failed on 10 B.V, due to sticking. The instrument was taken to pieces and examined in order to find a reason for the failure. We found that the slot in the device had a slightly rough surface, and that on polishing this surface, the trouble was eliminated. The instrument has now been refitted to 10.B.V for further testing. Bm/RC. {R. Childs} | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).