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Sample Preparation Guide

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OFDA 5000

OFDA5000 Ultrafine microfibre diameter measures at up to 20,000 fibre measurements per minute, with a standard deviation of sample mean typically less than 0.05um.

OFDA5000 is the first rapid image analysis system to measure fibre diameter of snippets from 0.5-60 Micron. Much lower cost and much faster than electron microscope. Measuring hundreds of times more fibres without operator bias provides a more accurate measurement.



Suitable fibres include:

* Glass
* Ceramic
* Synthetic microfibres

For fibre batch quality control and research, OFDA5000 is a unique automatic image analyser that measures the mean and distribution of fibre diameter in micron, denier or decitex.

OFDA5000 automatically calculates the mean and coefficient of variation (CV) of diameter when a sample is measured. The percentage of fibres in a given range can be easily calculated from the histogram that is saved in spreadsheet form.
Measured values

* Fibre diameter distribution
* Fibre curvature distribution

Statistical values:

* Mean value (mean fibre diameter in ?m, denier or decitex)
* Standard deviation s
* Coefficient of variation CV%
* Histogram of diameter and curvature
* Fibre measurement points can be seen on the video screen.
* Fibre images can be saved in Windows format for including in reports

All data can be exported to spreadsheets for research.
Advantages and Benifits of OFDA 5000

* 0.5µm to 60µm fibre diameter range
* very high repeatability, mean value typically +/- 0.05um.
* spreadsheet output with 0.2µm resolution diameter histogram
* up to 20,000 fibre snippets measured per minute
* no operator bias from measurement
* standard 70mm square glass slides used, rapid sample preparation similar to OFDA100 instrument

Operating OFDA5000

Operation is similar to the OFDA100 instrument. Snippets are cut from the sample using a 2mm guillotine and spread by automatic spreader onto the hinged 70mm square glass slide. This process takes 1-2 minutes. The slide of snippets is then placed on the OFDA5000, the sample identification is entered and the measurement of the whole slide takes 45 seconds, typically measuring 4,000-20,000 fibre snippets depending on the quality of spread. The sample is then brushed or vacuumed off the slide ready for the next sample. Industry standard safety procedures must be followed when handling particular fibre types.



Design by Arno Münzer