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WCAmini AD-3661 FFT Analyzer

A portable 4 channel noise and vibration analysis system.

SKU AD-3661 Categories ,

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WCAmini AD-3661 FFT Analyzer from A&D.

The WCAmini AD-3661 FFT Analyzer from A&D is a portable 4 channel noise and vibration analysis system.

  • Powered by USB (No AC adapter required).
  • 24-bit, 4 channel measurement (TEDS compatible).
  • A synchronous tachometer input.
  • Integral signal generator.
  • FFT analysis and throughput recording and playback analysis.
  • Order tracking analysis (Optional).
  • Filtering function (Optional).
  • Voice memo input and sound playback.
  • Includes WCA Lite (Optional easy-to-use analysis software).
  • WCAPRO (Multi-analysis and measurement software).


Product Features

  • A portable and lightweight, USB bus powered unit.
    The WCAmini is small and light enough to fit into your travel case. Powered by the USB bus, it allows you to perform noise and vibration analyses anywhere.
  • User-friendly GUI and WCA Lite with improved ease of operation.
    With enhanced operability, the WCAmini has adopted the same design concept employed in the highly reputed WCA. WCA Lite will enable simple operation of FFT and tracking analyses.
  • Complete compatibility with the CompactWCA / WCAonPC (AD3600 Series).
    A compatible user interface eliminates the need for additional training of existing users. Additionally, data analysed in the past can still be utilized, as data remains fully compatible because of the same MFU file format.


WCAPRO. Multi-analysis software

WCAPRO has an easy-to-manage user interface that can be operated as a Windows application. It also provides real-time FFT analysis for noise and vibration testing. Optional licenses for integration real-time octave analysis and tracking analysis are also available. The system comes standard with a throughput collection function. This allows continuous recording of time history data on a disk and repeated playback analysis. Off-line playback with a standalone PC is also possible (Optional).

Number of Input Channels 4
Frame Size 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536
Frequency Range 40kHz - maximum
Real-Time Analysis Frequency 20kHz
A/D Converter 24 bits
Dynamic Range 100dB
Analytical Functions Time Function, Time Averaging Function, Spectrum, Auto-Power Spectrum, Complex Spectrum, Energy Spectrum Density Function, Power Spectrum Density Function, Cross Spectrum, Phase Spectrum, Transfer Function (H1, H2, H3, HV), Coherence Function, 1/1; 1/3; 1/6; 1/12 Octave
Display Functions 
Plot Window Max. 16 window simultaneous display
Overlaying Max 8 trace (2D display)
Format 2D display (Amplitude, Bode diagram, Nyquist diagram, Orbit)
3D display (Spectrum map, Campbell diagram, Colour Spectrum)
Block Arithmetic Functions
Block Arithmetic Functions +, -, *, /, Complex conjugate number, Discrete Fourier transform, Fast Fourier transform, Inverse discrete Fourier transform, Inverse fast Fourier transform, Time-domain differentiation/integration, Frequency-domain differentiation/integration, Hilbert, Inverse Hilbert, Exponent, Logarithm, Natural Logarithm, Amplitude, Phase, Square Root, Trigonometric Logarithm, Envelope, Averaging, Acoustic weighting, Smoothing, Interpolation, 1/1 ; 1/3 ; 1/6 ; 1/12 octave
Throughput Functions
Throughput Functions Time history data recording and playback and analysis (down sampling during playback is possible)
Signal Generator
Number of Outputs 1
Waveforms Sine wave, Pure random, Band random
Waveform Burst Control, Lump Control, Sweep Control
Order Tracking (Optional)
Processing Constant ratio RPM tracking, Constant band RPM tracking, Order tracking analysis band width (frequency/order), Octave band tracking (1/1 ; 1/3 octave), Phase tracking, Cross spectrum, Transfer function, Spectrum map, Campbell diagram, Colour spectrogram
Max Analysis Order 1600
Analysis Order Range 6.25, 12.5, 25, 50, 100, 200, 400, 800, 1600
Real-time Octave Analysis (Optional)
Analysis Function 1/1, 1/3, 1/6, 1/12 octave
Filter Method Digital Filter

1/1 oct (ANSI S1.11, JIS C1513 Type II)
1/3 oct (ANSI S1.11, JIS C1513 Type II)

Averaging No averaging, Linear, Exponential, Peak
Time Weighting 0.001 to 1000 seconds
Filtering (Optional)
Arbitrary Frequency Filter Lowpass, Highpass, Bandpass or Bandreject
Order Filter Bandpass or Bandreject
Dimensions / Weight
External Dimensions 30(H) x 139(W) x 138(D)  (unit: mm, excluding protuberances)
Weight 330g
Power Supply USB bus power, AC adaptor
WCAmini AD-3661 Portable FFT Analyzer