A sub-seismic test platform as a motion exciter
Abstract
The technique and use of a large pneumatically supported test platform as a motion exciter is described. The maximum motion capability and the effects of system resonances of the 450,000-lb servo-controlled isolation test platform are shown for use in tests of motion sensors (e.g. inertial navigation gyros and accelerometers, seismometers, and tiltmeters). The possibility of investigating large test specimens, such as a complete navigation system, is considered. Information is provided on the construction of the test platform and the electro-pneumatic control system which maintains the test platform level to 0.001 arcsec and free of vibrations greater than 10 to the -8th g.
- Publication:
-
25th International Instrumentation Symposium
- Pub Date:
- 1979
- Bibcode:
- 1979isa..symp..167S
- Keywords:
-
- Flight Simulators;
- Inertial Platforms;
- Motion Simulators;
- Test Facilities;
- Air Navigation;
- Attitude (Inclination);
- Graphs (Charts);
- Pneumatic Equipment;
- Test Equipment;
- Vibration;
- Engineering (General)