AMSY4: Acoustic Emission System
compact · user-friendly · high performance · fully digital

Please note: The AMSY4 has been replaced by the even more powerful Vallen AMSY-5.

Compact and complete:

• 2-channel AE-system, 2 or 4 parametric inputs, pulser, audio speaker & PC, in a half size 19" enclosure.
• 6-channel AE-system in a three quarter size 19" enclosure (37 cm width, 15.5 cm height, 38 cm depth).
• Larger multi-channel systems (any number of channels possible) are based on full 19" racks.
• Industrial grade PC built-in, e.g. Pentium™ 400 MHz, 128 MB RAM, >12 GB HDD, 1,44 MB FDD.
  

User-friendly:

• Strong BNC-connectors for preamplifiers and parametric inputs, easy to access at the front panels.
• Front panel LED's give system status information, such as threshold crossing, preamplifier not connected, calibration-mode, buffer empty/full, recording enabled/disabled, HDD-access, and more. 
• Front panel switches for Power, AE- and TR-data recording, audio selection, range selection, and more.
• Built-in pulser can generate pulse trains with amplitudes of up to 400V_PP. Manually and software adjustable.
• Audio monitoring unit and internal speaker make AE-signals from selected channels audible.
• Multiple AMSY4 systems can be combined and synchronized via master-slave connection.

• 10 Msamples/s 16-bit ADC (analogue to digital converter) per AE-channel.
• Very low noise is accomplished through linear power supply regulation and sophisticated internal screening precautions: <310 µVPk (99% of samples) at ±5 V range, 10 Msample/s, open 50 Ohm input.
• Differential input for preamplifier line. Floating preamplifier avoids the amplification of ground loop noise.
• Single BNC-cable to the preamplifier carries the AE-signal, the preamplifier DC supply, the preamplifier gain control information and the calibration pulse.
• 2 software selectable high-pass modules, 54dB/octave to cut off low-frequency noise.
• High density FPGA (field programmable gate array) for AE-feature extraction. The capability of loading programs from the PC into the channels allows for flexible adaptation to application dedicated needs.
• Multiplier-chip delivers squared ADC-value (30 bit) for fast True Energy and True RMS accumulation.
• Extra large temporary buffers for both, hit data (up to 400.000 hits) and transient data (up to 16 Msamples per channel) available.
• DSP-power: 50 (optional 100) million 32-bit floating point operations per second.
• 2 (optional 4 or 8) parametric inputs (16-bit ADC 100 Ksample/s) for load, temperature, etc..
• Each parametric input is isolated up to 100 V against ground to avoid ground loop and common mode problems. Overvoltage protection by varistors.
• ±10 V or ±1 V range selectable for each parametric input.
• Parametric input can also be used for cyclic load counting and voltage controlled data recording.
• Digital inputs for up/down counter, data recording enable/disable, external trigger.

• Audio monitoring unit with internal speaker makes the AE-signals from selected channels audible.
• Audio on/off selector switch for each channel.
• As many channels as desired can be selected for simultaneous audio monitoring.
• Front panel controls for audio sensitivity (audio threshold) and volume.

• Internal calibration pulser generates pulse trains up to 400VPP.
• Software selectable number of pulses per pulse train.
• Auto-calibration under software control.
• Additional calibration pulse output for acousto-ultrasonic applications.
• Pulse amplitude manually adjustable in "local" mode or software selectable in "remote" mode.

• The AMSY4 software is based on the powerful and mature AMS3 package and shares many of its features:
• Location options include: linear, planar, cylindrical, spherical, multi-triplet, tank bottom & 3-D algorithms.
• Multi-tasking approach to data acquisition and analysis allows the user to add plots and change analysis parameters during the test, without disturbing data acquisition.
• Powerful cluster toolbox, with cluster editor and cluster filter options.
• On-line data filtering, labelling facility, rotatable 3-D plots, data zoom (by using start/stop criteria) and more.

For more information about our software click on VisualAE™, VisualTR™, and VisualClass™.

Compatibility and Continuity:

• AMSY4 data format is compatible with AMS3 software.
• AMSY4 transient data is compatible with existing pattern recognition software.
• AMSY4 channel is compatible with AMS3 preamplifier.

Click here to explore the Vallen AMSY-5, being the successor of the AMSY-4.