Instrumentation for precision measurements
Abstract
In this paper, the sequential development of a family of precision measuring instruments is described. The sequence evolved as part of continuing studies by the U.S. Air Force in the field of Geokinetics and the testing of precision inertial sensors. These sensors exploit the fact that small mechanical angular motions are caused by relatively large torques on large structures. The sensors then become an integral part of the system being analyzed. The development indicates the varied areas of application made possible by being able to detect basic motions such as acceleration, velocity and displacement. Because these sensors are angularmotion sensors, they are uniquely applicable to vibration signature analysis in the presence of large rigid body motions. The simplicity of design concepts used to measure angular motion makes varied applications possible. The Fast Fourier Transform Analyzer plays a significant part in these applications. References are made to certain of these applications.
- Publication:
-
AIAA, Guidance and Control Conference
- Pub Date:
- August 1975
- Bibcode:
- 1975guco.conf.....O
- Keywords:
-
- Accelerometers;
- Angular Acceleration;
- Displacement Measurement;
- Measuring Instruments;
- Velocity Measurement;
- Vibration Meters;
- Angular Velocity;
- Bolometers;
- Fast Fourier Transformations;
- Gravity Gradiometers;
- Pendulums;
- Precision;
- Resonant Vibration;
- Instrumentation and Photography