PVDF Microforce Sensor for the Measurement of Z-directional Strength in Paper Fiber Bonds

Pooya Saketi, Seyed Kourosh Latifi, Juha Hirvonen, Satu Rajala, Antti Vehkaoja, Timo Salpavaara, Jukka Lekkala, Pasi Kallio

    Research output: Contribution to journalArticleScientificpeer-review

    13 Citations (Scopus)


    The Z-directional strength of paper fiber bonds is an important parameter for the paper and board industry. The current methods of studying Z-directional paper fiber bond strength rely on handsheet measurements. This paper presents a novel tool for measuring the Z-directional strength of individual paper fiber bonds. A polyvinylidenefluoride (PVDF) film microforce sensor, with a special
    specimen holder, was designed, fabricated and calibrated to perform the measurements. The microforce sensor operates in a cantilever-like bending mode and is capable of measuring forces up to 10 mN. It is demonstrated that the output of our microforce sensor is linear, in addition to which it can measure forces higher than 3 mN with a coefficient of variation of less than 2%. This new
    microforce sensor was integrated into a microrobotic platform and is shown to be able to accurately measure the Z-directional bond strength of paper fibers.
    Original languageEnglish
    Pages (from-to)194–203
    Number of pages10
    JournalSensors and Actuators A: Physical
    Issue number1
    Early online date11 Dec 2014
    Publication statusPublished - 1 Feb 2015
    Publication typeA1 Journal article-refereed


    • PVDF film
    • Microforce sensor
    • Sensor calibration
    • Z-directional strength measurement

    Publication forum classification

    • Publication forum level 2

    ASJC Scopus subject areas

    • Control and Systems Engineering


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