|Rotating Spoke Test Tool.|
The Ludlum Model L-629 Rotating Spoke Test Tool is designed to evaluate the performance of the Fluoroscopic
Imaging Systems. The tool demonstrates screen image lag, motion blur, contrast, and related distortions encountered in
When combined with aluminum or acrylic block attenuators, the Rotating Spoke Test Tool provides the user with a means to simulate the movement of guide wires and radiopaque catheters, seen in Angiography or Cardiac Cath patient procedures.
The Rotating Spoke Test Pattern consists of a circular 5.5 inch diameter acrylic disk with steel 12 wires arranged on its surface in 30 degree intervals. The wire diameters range from 0.02" to 0.005". There are two wires of each size directly opposite each other on the disk. Lead numbers (1-6) appear on each half of the disk near the perimeter. The disk is mounted on a synchronous motor with a speed of 30 RPM to simulate movement of wires.
The visibility of smaller diameter wires ( 0.014" or less) will confirm the system performance. [ 0.14" is a common guide wire size ]
Motor Power: 115V/60 Hz [Available in 220V]
Wire Sizes (diameter): 0.005; 0.008; 0.010; 0.014; 0.016 and 0.022 inches.
Disk diameter: 5.5"
Disk Thickness: 1/4"