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Data AcQuisition software (HR DAQ)

The Data AcQuisition software (HR DAQ) is used to collect and analyse data from a variety of instruments used in physical models such as wave gauges, Acoustic Doppler Velocimeters (ADV) and pressure sensors.

Product features
  • Specifically designed for wave analysis
  • Instrument calibration
  • Data collection
  • Spectral analysis
  • Statistical and wave counting analysis
  • Reflection analysis

This comprehensive Windows based data acquisition and analysis program, suitable for 64 analogue input channels, is project based and is split into three sections.

Calibration and scaling of inputs

The calibration section allows the creation of calibration files for use with the acquisition and analysis sections. It provides a comprehensive set of facilities for setting up the calibration files that are used to convert the analogue voltage signals in the model, to data at full scale, assuming Froude or Reynolds scaling.

Data acquisition

HR DAQ is set to collect raw data for a specified period of time at a specified frequency.

Data analysis

After the data has been collected, HR DAQ can be used to perform a number of analysis routines. The principal analysis program includes two routines; one is a Fast Fourier Transform spectral analysis and the other a statistical one.

Calibration routine
Labelling of input channels
Automatic calibration with Linear Least Squares fit shown for each channel
Automatic setting of zero levels


Data collection
Sampling frequency 1-500Hz
Monitoring of channels during data collection
Trace of all channels displayed or turned off as necessary
Elapsed time and time to completion


Data analysis
Spectral analysis
Energy density
Hs m0, m2, m4, Tp
Statistical analysis
H1/3, Tm, Standard deviation, Variance, Reflection analysis, Bulk reflection coefficient, Incident and reflected spectra


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