ECTS SS AT PR EMEN PERTE
i hE TO EN et SA SN CARLA I HN ll M AME EN B AA AA AEQ Leu Dao A eaa da. 1 "MD UA unter Merde Ca cm D Cc 3 DEC o LL io
at 1 mm/s or less. It should provide isolation from frequencies down
to 5 Hz or lower. A mount design in which the supporting forces act
though the centre of gravity of the camera seems a likely way of
achieving this goal. Consideration might also be given to the possible
separation of the two mount functions: 1) isolating the camera from
angular vibration in normal smooth survey flying and 2) protecting the
camera from mechanical damage in rough conditions or on landing.
The development of more easily used instrumentation for measure-
ment of camera angular vibration would be helpful.
7. ACKNOWLEDGEMENTS
The following organizations made this study possible by donating
flying time: Capital Air Surveys Ltd., Department of Energy, Mines and
Resources, Department of National Defence, Lockwood Survey Corp., Photo- ( 4
graphic Surveys Inc., Spartan Air Services Ltd., and Survair Ltd. Optical,
electronic and mechanical arrangements for the flashing lights were
fabricated by the Optical Components Laboratory, the Electronics Labora-
tory and the Machine Shop of the Physics Division of N.R.C. Laboratory
personnel involved in the operations and data analysis were G. Aubertin,
H. Brown, A. Cameron, T. Draper, J.A. Hehir; K.J. McKee, J.E.W.' Piummer,
I. Powell and A. Way-Nee.
8. REFERENCES
1s Samuelson, D., Anti-Vibration Camera Mounts. British Kinemato-
graphy, Sound and Television 49, 150 (1967).
2. Carman, P.D. and Carruthers, R.A.F., Aircraft Camera Mounts -
Their Design and Testing. J. Opt. Soc. Am. 41, 311 (1951).
3: Fish, R.W., Anti-Vibration Mountings for Aircraft Cameras. The (0
Photogrammetric Record 2, 399 (1958). |
4. Attwell, B.J., Image Movement in Air Photography. The Photo-
grammetric Record 3, 4 (Apr. 1959).
5. Trott, T., The Effects of Motion on Resolution. Photogrammetric
Engineering 26, 819 (1960).
6. Casper, R., Resolution of Vibration Isolated Cameras. Photo-
grammetric Engineering 30, 579 (1964).
75 Maune, D.F., A Study of the Effects of Vibration on the Resolution
and Acutance of Imagery from Zeiss RMK AR 15/23 Camera. American
Society of Photogrammetry, Fall Convention, St. Louis, 1969, and
International Symposium on Photography and Navigation, Columbus,
Ohio, 1970.
