Blar i NTNU Open på forfatter "Liu, Tonggang"

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    • A measuring method for micro force based on MEMS planar torsional spring 

      Wu, Jian; Liu, Tonggang; Wang, Kesheng; Sørby, Knut (Peer reviewed; Journal article, 2020)
      In order to measure the micro force in a micro-nano device, a new measuring method for micro force is introduced. In this paper, a measuring system based on a micro-electro-mechanical systems (MEMS) planar torsional spring ...

    • A Pin-on-Disk Tribometer for Friction and Lubricating Performance in mm-Scale 

      Wu, Jian; Liu, Tonggang; Yu, Ning; Cao, Jiejie; Wang, Kesheng; Sørby, Knut (Peer reviewed; Journal article, 2021)
      A pin-on-disk tribometer for micro-scale applications is presented in this paper. The tribometer consists of a stationary mm-scale pin and a rotating disk. Friction and lubrication film thickness are measured by a laser ...