Page 158 - The ROV Manual - A User Guide for Remotely Operated Vehicles 2nd edition

146 CHAPTER 7 Power and Telemetry
Lights
Generator
PDU
Step-up transformer
Step-down transformer
Controller
Thrusters
AC to DC rectifier
FIGURE 7.5
Hydraulics
General arrangement for an AC-powered MSROV.
(non-moving) structure to a rotary structure (e.g., deck power lead to a rotating winch or the frame of a TMS to the tether reel). The frame of the winch or tether reel will hold the slip ring housing with its stationary contacts (Figure 7.8), while the rotary joint, with its complementary contacts, rotates with the drum.
7.1.4.2 Fiber-optic rotary joints
The function of the fiber-optic rotary joint (FORJ) is to provide an uninterrupted passive union between a stationary and a rotary fiber (typically for optical transfer from a stationary frame to a rotary winch). The FORJ is a very precise optical instrument for aligning a very small fiber element with another separate fiber element which is rotating. The basic principal of operation is to refract
Cameras
Pump
Manips
Tools
Sensors
Electronics
Tether/umbilical
Low voltage
High voltage