Test technology for control elements

MPH Test Automation is also able to test control elements for various sectors such as automotives, electronics, industry, measurement technology, medical technology, and much more. Generally, the tested elements are touchpanels and control systems with buttons, levers, or knobs. Often, we find that combinations of different types of control elements are used in a single system, such as touchpads that also have conventional buttons and/or knobs, for example. As well as checking the haptics, we can test the electrical parameters.

What we do in test technology for control elements

We have standardised test modules for testing conventional buttons. We also have test heads for checking the force-path diagram (haptics) of a button when it is pressed, that is, whether the button really is pressed down, and whether it works as intended. Depending on the customer's requirements, testing can take place by means of spot checks or even as a 100% inspection, including the use of inline methods. We have preconfigured various transport conveyor systems with workpiece carriers for this purpose.

Another area of expertise is the checking and calibration of touchscreens and touchpanels using robots. Here, robotics and a stylus can be used to select specific points or trace lines. Entertainment systems are a good example of the systems we can check in this field.

Car entertainment systems often have a rotary button that also requires testing as well. This is achieved using grippers that test the torque versus angle diagram of the rotary button. A torque measuring head is flange-mounted onto the robot's gripper. This measures the rotation of the rotary button with great precision. By recording the torque in relation to the angle of rotation, production tolerances can be determined extremely accurately, which safeguards quality.

Primarily, we offer test technology for the following:

  • Control elements for air conditioners, machines, and control systems
  • Control elements for entertainment systems (e.g. touchpads and satnavs)
  • Dashboard control elements (switches and buttons etc.)
  • Electronic control elements (control panels)
  • Force/path torque control elements
  • Contact-free measurement and testing, recognition and classification of parts