A.U.D.I Acoustic Underwater Development Instrument

Brief Description:

The A.U.D.IAcoustic Underwater Development Instrument was designed for R&D work at the request of University marine engineering departments, and hydrographic underwater research establishments. The A.U.D.I provides access to a wide range of transducer drive signals which can be pre-set (Cal), or continuously variable (Var).
A built-in USB or WiFi (option) connected instrument, provides a dual channel, high resolution data acquisition Signal Analyzer with an Arbitrary Waveform Generator (AWG) and enables all signals to be monitored/analyzed. The new A.U.D.I Multi Channel Software creates a full range of virtual instruments – Oscilloscopes, Spectrum Analyzers, Multimeters, Data logger – on a Windows 10 OS PC/laptop.
The A.U.D.I can also be used for SONAR/ASW training, as a demonstrator, and to give students hands-on experience with real-time Active/Passive SONAR configurations.

A.U.D.I Features:

  • Integrated high resolution PC Data Acquisition Signal Analyzer & AWG.
  • Variable/Calibrated Pulse Repetition Frequency (PRF) – <.5 meter and >6 meters.
  • Variable/Calibrated Pulse Width (PW) Continuous or Single shot – <10 µsecs and >2 msecs.
  • Variable/Calibrated CW Oscillator frequency – <35 kHz and >300 kHz.
  • Frequency display.

  • FM Modulation input – dc to 100Hz.
  • Switched Gate & Sync Output
  • Three transducer drive amplifiers Tx1, 2, 3 with variable Gain.
  • Variable Phase, plus cascade Phase on Tx 2 and Tx 3, referenced to Tx 1 Output.
  • Three High Voltage parallel outputs – 60 volts pk-pk max.
  • Auxiliary Amplifier with three inputs and Gain control.
  • Three fixed gain (x 5) general purpose amplifiers ‘A’.
  • Motor Speed control voltage – 0 to 12volts dc at 1 amp. 
  • Access to +5, -5, +15, -15 volts dc for external R&D, custom circuitry.

USB powered Signal Analyzer:

This function of the A.U.D.I is independent of the rest of the panel, and can be used for signal analysis/generation, without power being applied to the A.U.D.I

Signal Analyzer in brief:

  • PC/laptop, dual channel Data Acquisition Signal Analyzer – USB 2.0 -3.0
  • Sample rate – 500 Ms/sec with 14 bit dual channel resolution
  • Resolution selectable – 12 to 16 bit (6 µV)
  • Windows OS 10
  • ASCII data files for exporting to other applications
  • Oscilloscope, Spectrum Analyzer, True RMS Voltmeter
  • Data Logger – 21 minutes to 750 days

  • Spectrum lin/log and volts/dB axis
  • FFT Windows – Rectangle, Hanning, Hamming, Blackman, Bartlett
  • FFT points – 16 to 32,768
  • Distortion calculations – 1 to 100.
  • Arbitrary Waveform Generator (AWG) – 14bit resolution
  • Frequency range – dc to 40 MHz with .01 Hz frequency step
  • Output impedance – 50 Ohms
  • Output signal amplitude – >20 volts pk-pk
  • Sine, Square, Triangle, Noise, DC, and User Defined waveforms
  • Variable Symmetry (Mark to Space ratio)– 1 to 99% in 1% steps
  • Frequency Sweep control Lin/Log.

        Unique ‘Object Tree’ programming


Download datasheet- AUDI 2021