Simultaneous measurement of loading position and loading weight by using a deflection mechanism of an H-slit type double beam load cell

Koyu Abe, Masaru Uchiyama

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The H-slit beam structure is an effective structure used in design of force sensor. It can enlarge sensitivity while it keeps enough rigidity and stiffness. One of the characteristics of the H-slit beam structure is that its deformation pattern is same as that of a four bar link mechanism. In this kind of mechanism, it is highly important to show recovery from deformation force under specific distance between the parallel beams. Like a Roberval balance mechanism, the H-slit beam structure is also capable of moment canceling though the mechanism involved in it has not been explicitly developed. This paper investigates the efficiency of the H-slit beam structure by comparing the generated strains of it with that of the Roberval mechanism. Here the strain is calculated by using FEA (Finite Element Analysis) and experimental models. All of the results show that the H-slit beam structure is effective in canceling the moment due to the distance between strain signal sensing position and loading position. The results also demonstrate that when the distance between two parallel beams in the structure is too narrow, the structure will become ineffective for moment canceling.

    Original languageEnglish
    Pages (from-to)1200-1205
    Number of pages6
    JournalSeimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering
    Volume76
    Issue number10
    DOIs
    Publication statusPublished - 2010 Oct

    Keywords

    • Force sensor
    • H-slit beam
    • Load cell
    • Parallel beam
    • Roberval balance
    • Sensor structure
    • Strain generate

    ASJC Scopus subject areas

    • Mechanical Engineering

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