The QASS Zelos system was developed with the aim of supporting companies in quality assurance in sintering. The Zelos system is an automated laboratory system for checking the density of sintered components. The measuring system installed is the QASS Optimizer4D with µmagnetic – the micromagnetic extension for hardness testing, grinding burn testing and segment density testing for sintered parts.
The Zelos system for testing sintered parts combines micromagnetic measuring technology with smooth component handling. Test specimens are gently removed from the holder by a pneumatically controlled magnetic gripper and guided to the micromagnetic sensor via two linear axes. A laser distance sensor ensures the correct positioning of the test specimen. A torque motor ensures the rotation of the test specimen, so that a test specimen can be measured at several measuring positions. After the measurement, the test specimen is guided back to the holder via the linear axes and placed back into the holder by the magnetic gripper without being damaged.
Handling is controlled by the QOBOT robotics software from QASS, which is started in the background by the Analyzer4D measuring system software and with which information is continuously exchanged, for example about the selected measurement settings or the status of the individual linear axes.
To make the use of the system as easy as possible, QASS has developed a graphical user interface (GUI) specifically for the Zelos system. This GUI is adaptive and can be customized to meet customer requirements.
The GUI combines configuration, control and result display for the user. Configurations for different test specimens can be saved and loaded in the Optimizer4D database and the quality test can be started and stopped via the GUI.
The user can flexibly adapt the measurement to his needs. Not only the number of test specimens to be tested, but also the number of measurement positions and the number of measurement repetitions per position are adjustable. In addition, the user can independently define tolerance limits.
The micromagnetic segment density test for sintered parts is based on the magnetic Barkhausen effect – also called Barkhausen noise. The micromagnetic sensor records the Barkhausen signals generated as a reaction of the test specimen to magnetization by an external alternating magnetic field. The Barkhausen signals are processed in the Optimizer4D by the Analyzer4D software and evaluated using spectral analysis, pattern recognition and energy detection. The aim is to make the energies of the Barkhausen signals comparable using statistical methods, so that conclusions can be drawn about the mass distribution in the test specimens. The test results are clearly presented to the user – both graphically and in tabular form. If a tolerance limit is exceeded, the measuring system alerts the user by means of a color-coded indicator.
Flexible configuration and measurement programming
You determine the configuration parameters and tolerance limits for segment density testing. Measurement and data analysis work fully automatically and are flexibly adaptable.
User-friendly graphical interface
The graphical user interface (GUI) makes it easy to operate the Zelos system. Through the GUI, the user can not only configure and control the system, but also interpret measurement results just as effortlessly.
Smooth handling of the test specimens
After molding, green specimens are form-stable, but not pressure-stable. Gentle handling of the test specimens is therefore of major importance. The fragile green specimens are handled in the Zelos system by a pneumatically controlled magnetic gripper. This guides the test specimens to the micromagnetic sensor without damaging them.
1200 x 1026 x 2131 mm (L x W x H)
Sound pressure level
below 75 dB (A)
ambient temperature +10 °C to + 50 °C
air pressure min. 3 bar to max. 10 bar
voltage 230 VAC / 6,5 A
X- and Z-axis: 0,1 mm
maximum weight: 10 kg
number: Varries according to size; Standard: 4
Air consumption/measurement position and repetition
Test time/measurement position and repetition