VATS™ (Vibration Analysis Toolset)

Concern for the hazards related to exposure of the human body to vibration from power tools, vehicles and machinery has increased in recent years. Both whole body vibration and hand arm vibration can cause physical damage and considerable increased compensation costs. Various standards have been implemented to address this important hazard area.

The VATS Series of vibration analysis products has been developed to enable users to readily obtain vibration data for comparison to the various standards. (VATS is a trademark of NexGen Ergonomics Inc)

Full Specifications

Comprehensive Human Vibration Analysis Solution

The key features of VATS include:

  • Multiple tri-axial accelerometers can be connected
  • 8 channels can be expanded to 24 channels
  • All raw data is stored on Micro SD cards with 2GB of storage memory available
  • Other sensors such as goniometers and EMG sensors can be connected
  • Powerful and easy to use analysis software

Leading organizations worldwide use VATS. These include vehicle and tool manufacturers, government organizations, universities, corporations and consultants. VATS unique features include the ability to handle multiple accelerometers and other sensors with large amounts of storage that can then be easily analyzed by our powerful yet easy to use software.

The VATS series of human vibration analysis products are available as individual packages for either hand-arm or whole body analysis. The VATS includes the DataLOG MWX8 that is a fully portable, subject worn, programmable data acquisition unit. The DataLOG collects data from the accelerometers and/or from a variety of additional sensors such as electrogoniometers, force sensors and EMG. Data can be transmitted real-time directly to the computer via the wireless Bluetooth connection or stored on the 2GB MicroSD card that is then later downloaded to a PC for detailed analysis.

DataLOG has a maximum sampling rate of 20KHz/channel (160KHz maximum on 8 channels), 2GB flash and telemetry option. Up to 3 DataLOG units can be synchronized for a total of 24 analogue channels. The DataLOG is connected to the host PC for both programming and downloading of data. Data for X, Y and Z axes of the accelerometers is simultaneously collected. When recording in MicroSD Mode only synchronization options for 16 or 24 channels are available with sampling rates up to 20,000Hz per channel (160KHz total Sampling frequency).

With the VATS, the user can either perform detailed analysis with full reporting on a local PC or send the data electronically for analysis at a central corporate site. This approach simplifies data collection and incorporates sophisticated analysis with user-friendly software and comprehensive help. Raw data is available for analysis.

A real-time clock is included in the DataLOG to enable every recording to be marked with an accurate start date and time with its duration. A switch-mode power supply is used to obtain the maximum life from a set of two inexpensive AA batteries.

The VATS is available for either hand-arm or whole body analysis. Hand-arm vibration analysis is based on the ISO 5349 and ACGIH standard for hand arm vibration (HAV). Whole body vibration analysis is based on the ISO 2631-1, 2631-5, BS 6841, and ACGIH standard for whole body vibration (WBV).

Software Features

VATS Software Screenshots

Data Analysis performed:

  • Fast Fourier Transfer
  • 1/3 Octave band analyze
  • Weighted and unweighted RMS
  • Band-pass Butterworth filter
  • Filtering window
  • Waterfall plot
  • Spectrum plot
  • 1/3 octave band plot
  • Crest factor
  • Vibration dose value
  • TLV / Caution zone value for ISO and ACGIH standards
  • RMS history and summaries

Data provided:

  • All calculated values can be exported to spreadsheets, word processor, etc
  • Graphic output can be copied as bitmap

Optional Accessories

A 1.8 meter cable with a suitable connector at one end to connect to the DataLOG, and a hand held switch at the other. This useful accessory allows time marks to be superimposed on the recorded data.

For synchronization of multiple DataLOGs for data collection when in MMC only mode:

  • SYNC2: To synchronize 2 DataLOGs for up to 16 analog and 8 digital channels of data acquisition
  • SYNC3: To synchronize 3 DataLOGs for up to 24 analog and 12 digital channels of data acquisition
    Cable length: 500 mm
    Synchronization: Better than 8 milliseconds

This cable is an extender cable for users who want to use two axis of a 3rd accelerometer on a single DataLOG unit (i.e. for connecting to analog channels on the opposite side of the DataLOG unit). This is only applicable to Series 2 accelerometers.