14.4 ACTUATORS

---

There are a large number of power sources that may be used for robots.

Typical actuators include,

Pneumatics

- simple, low maintenance

- light, least expensive

- low payload

- easy to find fault

- hard to do continuous control

Hydraulic

- large payload

- high power/weight ratio

- leakage

- noisy

Electrical

- feedback compatible

- computer compatible

- EOAT compatible

- quiet, clean

- low power/weight ratio

Actuators lead to various payload capabilities as shown in the following list.