Comparison Charts Workflow

  1. Start the application by Applications > Metallography > Grain Size.

  2. Click the Grain Size Wizard button in the main tool bar.

  3. A dialog window appears. Select the Comparison Charts measurement method.

  4. Specify settings for the selected Image data source - see Grain Size Wizard - Start.

  5. Click the Start Measurement button. A new full-screen window appears displaying the first image of the data source and a set of (ISO 643) comparison charts.

    The image is now displayed in one of the supported total magnifications (physical zoom). Its value is displayed in the tool bar next to the zooming buttons. The Optimal Zoom button zooms the image to the nearest supported magnification which fits to the screen. The Zoom 100x button sets the magnification to 100x.

    See Tools of the Comparison Window

  6. One or more standard charts appear next to the image based on which comparison mode is selected in the tool bar. The 1:3 vertical comparison mode is used in the following example.

    The middle chart with the red border is the one whose value will be appended to the result table once you confirm the current measurement. Compare the chart with the image visually. If found useful, click on the Mask overlay button to display chart contours over the image. You can move the contours around the image by mouse.

  7. Use mouse wheel or the up/down arrow keys to display charts with lower or higher grain size values. Once you find a chart with matching grain size, click the Measure and new frame.

    The grain size value is appended to the result table on the right, a corresponding frequency bin in the top right histogram table is increased by 1 and measurement of the next field is started.

    Tip

    Should the current image for whatever reason be excluded from the measurement, click on the Skip and new frame button, no data will be added to the result table.

    Tip

    In case you realize a mistake was done, you can always use the Undo last measurement button to delete the last one or more measurements. If the Image data source is a folder or an ND2 file, the button also loads the corresponding image so that it could be re-measured.

  8. The measurement will be finished if:

    • the specified Field count is reached,

    • all images in the selected folder are measured,

    • the user clicks the Finish Measurement button.

    Having measured all the fields or having terminated the measurement, you will be prompt to create a report or to exit the measurement:

    Yes

    The comparison window will close and the current data erased!

    Yes with report, OK & Report

    All data will be passed to the reporting engine and the comparison window will close.

    No

    The measurement will continue with all previously measured data available.

    Select to create a report.

  9. Fill in the Report Info window and click on the Report button to create the report.

    See Data output and Reports.

  10. Save the report to a *.rpt file readable by NIS-Elements or export it to *.pdf or *.rtf.