ISO19232-5 double wire image quality meter

ISO19232-5Dual wire image quality meter——Measuring scale for geometric unsharpness of radiographic images

Double wire image quality meter (Germany) based onISO19232-5/EN462-5/ASTM E2002standard production,ISO19232-5/ EN462-5/ASTM E2002 The dual-wire image quality meter is housed in a rigid translucent plastic box13The diameter of the double-wire image quality gauge wire is equal to the distance between the wires. Each wire pair contains two wires with a circular cross-section.1Dto3DOne pair is made of tungsten and the other pair is made of platinum. The Dual Filament Image Quality Meter is used to determine the geometric unsharpness of radiographic and real-time radiography systems.

Dual wire image quality meterIQI - 13D: Line pair slave1DArrive13D

Dual wire image quality meterIQI - 15D: Line pair slave1DArrive15D

Dual wire image quality meters should be used with linear or hole type image quality meters. It should be placed on the source side of the object being inspected and should be as close as possible to the beam axis and perpendicular to the axis. With the help of4Observe the image of the dual-filament image quality meter with a magnifying glass.For the Z largest line pair, the image is exactly the distance between the two double lines. The image of the transition from two independent lines under the J limit to a single line can be identified. At this time, it is considered to be the distinguishable J limit value. Image is unclearUcan be2dmeans, among whichdis the width of the line and the distance between the lines.

Silk code name       Geometric unclearnessU(mm)             wire diameterd(mm)

13D           0.10                       0.050
12D           0.13                       0.063
11D          0.16                       0.080
10D           0.20                       0.100
9D           0.26                       0.130
8D           0.32                       0.160
7D           0.40                       0.200
6D           0.50                       0.250
5D           0.64                       0.320
4D           0.80                       0.400
3D           1.00                       0.500
2D           1.26                       0.630
1D           1.60                       0.800
The manufacturer should provide a test certificate for each dual-wire image quality meter.

Dual wire image quality meter——Measuring scale for geometric unsharpness of radiographic images