Test cell for automotive multifunction switches

System requirements

• Torque/tension measurement, force/distance diagram
  
  
• Recognition of fitted fuses
  
  
• Precision measurement of voltage drops at switching contacts
  
  
• Direct association of switching times and switching distances

• Use of standard industrial components
  
  
• Connection of 5 switch versions
  
  
• Short cycle times in 2-shift operation
  
  
• Networking to master database systems, e.g. for quality control

• Precision mechanics
  
  
• Quick changeover between left and right-hand drive versions
  
  
• Drives with high-torque stepper motor

• High-speed A/D converter card
  
  
• Image processing with 2 colour cameras
  
  
• DC feed to test items with high-precision programmable power supply
  
  
• LabView test bench software