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Research progress in micro force sensing measurement technology in medical field
Published:2024-11-21 author:LIANG Wei, LI Xingqiang, CHEN Zhixiong, et al. Browse: 8 Check PDF documents
Research progress in micro force sensing measurement 
technology in medical field


LIANG Wei1,2, LI Xingqiang1,2, CHEN Zhixiong1,2, CHEN Linnan1,2, YANG Xiaoxiang1

(1.School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China; 2.Fujian Provincial Key 
Laboratory of Terahertz Functional Devices and Intelligent Sensing, Fuzhou 350108, China)


Abstract: In response to the urgent need for the measurement of micro-force values in scientific research and clinical diagnosis and surgery in the medical field, the research direction, progress, and application of microforce sensing and measurement in the medical field were comprehensively overviewed. Firstly, the demanding of the micro-force measurement, the characteristics and its requirements in the medical field were analyzed. The traditional electrical micro-force sensing and measuring techniques, including the capacitive, resistive strain, and piezoelectric methods, were introduced. Their domestic and international research achievements, and the technical characteristics and shortcomings of these electrical measurement methods were also analyzed. Subsequently, the widely used optics based micro-force sensing and measuring techniques, including onedimensional and multi-dimensional, were systematically introduced. The principles, methods, and technical characteristics of optical micro-force sensing and measurement based on optical coherence tomography (OCT), Fabry-Perot interferometer (FPI), fiber bragg grating (FBG), intensity-modulated optical fiber sensing, and other optical techniques were analyzed. Finally, the latest research achievements, development levels, and applications in the medical field were classified, summarized, and commented. A systematic comparative analysis was conducted on the technical characteristics, advantages and disadvantages, applicable measurement ranges, and application scenarios of different measuring principles and methods. The research results indicate that the main issues in the current micro-force sensing and measurement in the medical field include the un-traceability of micro-force values and the unsatisfied demand for high-precision and wide-range measurement, further research and exploration are needed in the areas such as parallel monitoring and synchronous measurement of multiple parameters, composite sensing measurement, and integrated optical path sensing technology. The overview provides a reference for subsequent research directions and ideas in micro-force sensing and measurement in the medical field.

Key words: force measuring instrument; micro force; force transducer; optical force sensing measurement; multidimensional force sensing measurement; optical coherence tomography(OCT); FabryPerot interferometer(FPI); fiber bragg grating(FBG)

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