NineSigma’s client uses various sensors for nondestructive evaluation of various surfaces and structures. They collect copious amounts of data which then requires visual review by a human expert. Data sets include raw data from the sensors, position coordinates, and time. NineSigma’s client wants to use Microsoft’s HoloLens holographic computer to look at the data, allowing multiple wearers to examine the same data together. NineSigma’s client seeks tools, software, and processes to enable visualization.
NineSigma’ client has created a demonstration data set from ultrasonic data recorded for the flat plate, shown in the photo above. The plate is 14 inches wide by 32.5 inches long by 1.5 inches thick. The attached drawing of the plate indicates the location of various defect features. Please note that some of the features shown in the drawing are not present in the provided data set and that there is low-amplitude entry surface noise in the data set. See the figure below for a visual representation of the ultrasonic data set.
The data, saved as a tab-delimited text file, is complete volume amplitude data, with ultrasonic amplitude measurements (in units of %) indexed as follows. The data includes a 19-line header, followed by tabular data where the 38 columns represent ultrasonic amplitudes at increments of increasing thickness, from left to right. Rows indicate amplitudes measured at 793 increments in the long (x-axis) dimension of the plate. Subsequent blocks of 793 rows are for incremental slices in the width (y-axis).
See this attachment for a description of the header fields. Please use this link to access the example data set.