Design change of an accelerometer for a gun barrel from a capacity arrangement to a variable inductance system.
| Identifier | ExFiles\Box 175\3\ img062 | |
| Date | 9th August 1940 | |
| 3 To Rm {William Robotham - Chief Engineer} /Mr. Hardy (Clan Foundry). Lr {Mr Ellor} /HWS.1/VR. {E. S. Voller - Orders} 9.8.40. RE :- ACCELEROMETER FOR GUN BARREL. With reference to the scheme discussed, namely an inertia-controlled/capacity gap, further consideration of the quantities involved has led us to believe that the capacity arrangement will be advantageously replaced by one employing a variable inductance. It will be possible to effect a direct calibration. Sketches for the parts for this unit are being prepared and will be issued to HPS. {Horace Percy Smith - Experimental Factory Mgr} as rapidly as possible. Tht unit will be employed in a manner similarly to that already laid down, namely to produce a direct record of acceleration against a base of time. Lr {Mr Ellor} /HWS. | ||
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).