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Comprehensive Testing

The KLIPPEL Analyzer System combines the advantages of a comprehensive measurement suite with the flexibility of a modular system. It provides optimal solutions for testing any electro-acoustical transducer as well as passive and active audio systems with analogue, digital or wireless input. Multiple measurement tasks can be interlaced in one QC operation to realize ultra-fast testing. QC operations and any other measurement module can linked to an unlimited test sequence for more complex measurements, such as those required for type approval tests or detailed diagnostics.

Linear Measurements

  • Magnitude and phase of fundamental frequency response
  • Windowed impulse response
  • Polarity (acoustic phase) at selected frequencies
  • Sensitivity in specified frequency range
  • SPL of selected frequencies or bands
  • Variety of test signals: sine sweep, noise, single + multi-tone, WAVE file
  • Sweep amplitude profile to ensure optimal SNR

Distortion Measurements

  • Harmonic Distortion: 2nd - 5th harmonic, THD, HI-2 (weighted harmonics), HOHD (high-order harmonic distortion)
  • Impulsive Rub & Buzz distortion analysis superior to steady state measurement
  • Sweep with speed profile – spend test time in critical frequency range
  • Incoherence

Parameter Measurement

  • Thiele/Small parameters: RefsQtsQesQms
  • Other linear parameters: LeCmesLcesRes
  • Vented box parameters: Qb, fb
  • Thiele/Small parameters by added mass technique or laser displacement measurement (TSX add-on): BlMmsVasKmsCmsRms

Application to a Wide Range of Test Objects

  • Any kind of transducer (moving coil, electro-static, piezo, balanced armature)
  • Drivers mounted in sealed or vented enclosures, horns, car bodies, ...
  • Audio electronics (amplifiers, DSP)
  • Single to multi-channel loudspeaker system
  • Stand-alone playback devices (smart phone, smart speaker)
  • System with digital and acoustical delay (Bluetooth speaker)
  • Passive and active systems with analogue and digital interface (USB headphone)
  • Microphones, Headsets
  • 0.5 Ω up to 20 kΩ impedance: (automotive, 100 V PA speaker)
  • 1 mW to 1kW power (telecommunication, professional application)
  • 1 mA to 15 A current (microphone, shakers)
  • 5 Hz … 90 kHz frequency range (subwoofer, high-end tweeter)