Hologic QDR 4500 - Page 17

Section 1 - Introduction
1-7
Table Up/Down
Motor and Position
Encoder
Raises or lowers the Patient Table and provides position monitoring.
TX Stepper Motor
Driver
Controls the motion of the Patient’s Table in and out motor based on
commands from the computer software.
Table In/Out Motor
and Position
Encoder
Moves the Patient Table in and out and provides position monitoring.
TY Stepper Motor
Driver
Controls the motion of the Patient’s Table left and right motor based on
commands from the computer software.
Table Left/Right
Motor and Position
Encoder
Moves the Patient Table left and right and provides position monitoring.
AR Stepper Motor
Driver
Controls the motion of the C-Arm rotation motor based on commands
from the computer software.
C-Arm Rotation
Motor and Position
Encoder
Rotates the C-Arm and provides position monitoring.
AY Stepper Motor
Driver
Controls the motion of the C-Arm left and right motor based on
commands from the computer software.
C-Arm AY Motor
and Position
Encoder
Moves the C-Arm left and right and provides position monitoring.
C-Arm Interface Controls the Aperture and Filter Drum motors, generates timing signals
for the X-Ray Controller and the Data Acquisition System, and provides
power to the Positioning Laser.
X-Ray Controller Controls the operation of the X-ray source.
X-Ray Source Unit Generates the X-ray beam.
Solid State Detectors Converts the X-rays into electrical signals.
Integrator/
Multiplexor
Integrates the signals from the Solid State Detectors and applies them to
the Analog to Digital Converter.
Analog to Digital
Converter
Converts the analog signals from the Integrator/Multiplexor to a digital
format.
Positioning Laser Provides a laser beam to assist in positioning the patient on the Patient
Table.