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Mechatronics / Electronics

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  • Industry brochure: Automotive PDF 45 MB

Testing of Electronic Switches

To determine the switching characteristics of electronic switches and elements, the electrical signal of the tested assembly is integrated into the testControl electronics and the testXpert testing software arranges the electrical switching contacts synchronously by the respective force and deformation data. In a hysteresis test (switching on and off), the mechanical force or the torque and the electrical switching point are determined and displayed. For torque measurement, the testing machine is expanded to include a torsion drive and sensor.

Checking the solder point on boards

A fully automatic testing system with a motorized X-Y table is used to determine the extrusion strength of soldered components. All testing machine sequences as well as the X-Y table testing positions are automatically controlled by testControl and testXpert. The operator "teaches" the testing position only once. In-person monitoring is not required for testing.

ZwickRoell solution: zwickiLine Z1.0

  • Motorized X-Y table
  • Integrated cutting disk
  • Fully automatic test-sequence

 

Function tests on electromagnetic actuators

The force-stroke characteristic curve is checked when using proportional or switching magnets. It represents a function test on electromagnetic actuators and is usually the final test. The basic function properties of the actuators can be ascertained from the characteristic curve. The force-stroke characteristic provides information as to whether the actuator is applying the required force inside its operating range at a fixed current level. The hysteresis provides information about friction resulting from the quality of the mechanical parts. 

The force-current characteristic curve is predominantly tested for proportional magnets and provides information as to whether the actuator is applying the required force inside a current range at a defined armature position. The ideal characteristic curve has a linear relationship between force and current around the operating point.

Tests on cable insulation

A special compression test is performed for testing the indention resistance of cable insulation according to automobile specifications. The cable is placed on a fixing and loaded with a defined blade. The electrical contact between the blade and the cable strand is measured and then assigned in the force-travel curve displayed by testXpert.

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