Research Article
Engineering Micromechanical Systems for the Next Generation Wireless Capsule Endoscopy
Table 3
Actuator characteristics evaluation matrix.
| Characteristics | Micromotor |
Piezoelectric | SMA |
| Voltage | <5 V | >100 V | >2 V | Displacement | Unlimited | 0.2% | >30% | Force | High | High | Medium | Speed | <1 kHz | ~10 kHz | ~0.1 Hz | Compactness | Poor | Good | Good | Motion type | Rotation | Linear | Linear |
|
|