Table of Contents
Advertisement
6 CCU AND CAMERA CONTROL
6.1 INTRODUCTION
The TV camera has the following features
A recursive filter circuit reduces X-ray quantum noise and a motion detection function
provides
sharp
Horizontal/vertical image reversal functions The LIH (Last Image Hold) function of
image freeze. In addition to the image freeze function, the TV camera is provided with
8-frame memory. This function permits a memory image and a live image to be
switched for display on TV monitor. The playback image from one of the four-frame
memories can be output to a dedicated output terminal for continuous observation on
another monitor. These images can be compared against live images, freeze images,
and playback images
Image rotation function is incorporated using the slip ring mechanism in which motor
rotates the interior part of camera head. ABC (Automatic Brightness Control) signal is
generated in camera to control the output X-ray.
The camera system comprises of :
(1) Camera Head including lens .
(2) Camera Control Unit (CCU)
6.2 RATINGS
TV SYSTEM
CCD
Effective number of pixels CCIR 752 (H) x 582 (V)
Sync. method
Siemens Ltd. Med India
images
of
quick-moving
CCIR 15.625kHz(H), 50 Hz(V)
(625lines/25frames)
½ inch format, interline transfer
Internal sync.
Copyright © SIEMENS LTD. All rights reserved. For internal use only
Service Instructions
objects
while
Version 5.0
Multimobil 5C
reducing
noise.
Page 29 of 73
Advertisement
Table of Contents
Troubleshooting
