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ArFi - Artificial Finger

Making active feedback quantifiable with the ArFi

The ArFi introduces a complete and unique measurement system to be able to quantify haptics. Our ArFi is a
modular system that provides options to measure vibro-tactile feedback as well as acoustic feedback, separately
and in parallel. Its strong advantage is clearly reflected during the designphase of haptics, as it allows
developers to quantify their haptic design and tune it to the given application.

With this device, you will be able to save development costs, create quantifiable haptics, and recreate your haptic
design in different applications. The device is controlled through a simplistic user interface that can be accessed
through an integrated touchscreen or the browser of your PC. The user interface is accompanied by our ‘ArFi Haptic
Analyser’ that showcases the measured data, as well as it calculates the GHIV “Grewus Haptic Intensity
Value” that reflects the human perception of the intensity. With the ArFi, you will acquire a fully functional design
tool that simplifi es the design process and lets you optimize your haptics to your preference.

Tangible measured values in real time

Your Benefits with an ArFi

  • Active haptics become quantifi able
    • Precise measurements of haptics already possible in demo phases
    • Discussion based on data and not subjective perception
  • Recording of S-curves of mechanical switches possible
    • Characteristics of mechanical switches can be recorded
      and serve as inspiration
  • Integrated microphone for measuring acoustic feedback
    • Determination of relevant frequencies in the acoustic range
  • Consideration of the GHIV „Grewus Haptic Intensity Value“
    • For the fi rst time, the human perception of the
      vibro-tactile feedback is described mathematically
      and made comparable in an uncomplicated way for the user
    • Among other things, this enables you to make quick statements
      about changes to your decoupling strategy and the
      the mechanic structure
  • Acceleration measurements possible in x-, y- and z-axis
    • Vertical as well as horizontal excitation of the
      surface can be measured
    • Simultaneous measurement of all resulting vibrations
  • Own software for evaluating the measurements
    • No external programs necessary
    • Stand-alone device: Just connect and go
    • Optionally with built-in display