Micro-miniature roll rate sensor
Abstract
The Phase 2 Micro-Miniature Roll Rate Sensor Program developed an optical centripetal accelerometer that can be tailored to work over a wide range of accelerations. A rate sensing device was developed by measuring centripetal acceleration due to rotation with a proof mass loading a photoelastic sensing element. The acceleration is proportional to the amount of birefringence induced by the load. Development of this technology resulted in construction of a prototype rate sensor targeted for use with the Copperhead munition. The sensors developed in this program can be adjusted for the desired range of operation through changes in width of a photoelastic (plastic) sensing element and/or changes in the amount of proof mass used to load the sensing element. Radial location of the sensor can also be used to control the range.
- Publication:
-
Final Report
- Pub Date:
- November 1989
- Bibcode:
- 1989gci..rept.....G
- Keywords:
-
- Acceleration (Physics);
- Accelerometers;
- Birefringence;
- Detection;
- Optical Equipment;
- Photoelasticity;
- Rates (Per Time);
- Roll;
- Rotation;
- Mass;
- Position (Location);
- Prototypes;
- Range (Extremes);
- Instrumentation and Photography