Fakultät laboratories further information about AVT

Computed tomography

In the Laboratory for Assembly and Joining Technology at Hochschule München, objects ranging in size from less than 1 millimetre to approximately 120 mm can be examined using a computerised tomography scanner.

Using the image processing software, these objects can be analysed and measured in both 2D and 3D views. We will also provide you with a measurement report.

Technical specifications

X-ray source: maximum voltage/power 180 kV/15 W
Target: Tungsten on beryllium or molybdenum
Geometric magnification: 1.7× – 250×
Resolution: up to 200 nm (0.2 µm)
Minimum voxel size: up to 500 nm (0.5 µm)
Detector: High-Contrast Detector HCD 120-50, 12-bit/16-bit, 3-fold measurement range extension (max. 6,900-pixel detector width)
Pixels: 2,300 x 2,300
Pixel size: 50 µm
Max. sample diameter: < 1 mm to 120 mm

Applications of CT

Insights into objects and assemblies
Damage analysis
Checking connections
Dimensional measurement technology
Volume analysis
Target versus actual comparisons
Detection of defects, e.g. cavities, pores or foreign particles
Determining precise information about shape and position

Insights into objects and assemblies

A glimpse inside a torch with a broken solder joint.

An insight into a high-frequency filter

Damage analysis

Fault Analysis

: Using a computerised tomography scanner, we can inspect printed circuit boards and components for short circuits or open circuits.

Three-dimensional measurement technology

: 3D coordinate measurement technology enables workpieces to be measured and dimensioned in both three-dimensional and two-dimensional views.

Volume measurement

: Using CT, we can, for example, carry out volume measurements.

Target-Actual Comparison

: Using CT, we can compare components with a reference sample and check that manufacturing tolerances are being met.

Cross-section preparation technique

Using the cross-section preparation technique, we can examine various material samples and electronic components. To do this, the samples are embedded in a suitable medium, ground, polished and then analysed using a stereo magnifier and a microscope.