TY  - JOUR
AB  - Purpose There is an increasing demand for higher-accuracy dimensional measurements of nano- and micro-structures. Recently, the authors presented a fiber Bragg grating (FBG) sensor-based dynamic nano-coordinate-measuring machine (CMM) probe for true three-dimensional coordinate measurement, in which a specific mechanical structure with several FBG sensors was developed to provide the probe with sensitivity to loading in all directions.Design/methodology/approach The study presents a three-dimensional sensing and demodulation system based on an improved matched filter design and the time division multiplexing technique that helps solve the problem of multiplex FBG-signals conflicts. In addition, the application of the dynamic mode of the probe system effectively solves the problem presented by the surface interaction forces.Findings Consequently, this FBG-based vibrating probe system has increased sensitivity to strain, while maintaining smaller contact force. The experiments for testing probe performance show that the prototype yielded a measurement resolution of 13 nm, a repeatability of 50 nm and a vertical measurement force of less than1.5 mN.Research limitations/implications The force tests in the horizontal directions are difficult to conduct because both the probe and the dynamometer are only adaptable to vertical use.Practical implications Development of the FBG-based dynamic nano-coordinate-measuring machine probe will achieve a new and inexpensive method for higher-accuracy dimensional measurements of nano- and micro-structures, such as micro-electromechanical systems, micro-fluidic chips, inkjet and diesel engine injector nozzles that are in overall dimensions within the micrometer scale.Originality/value The study presents a three-dimensional sensing and demodulation system for the vibrating nano-coordinate-measuring machine probe based on FBG sensors. The prototype yielded a measurement resolution of 13 nm, a repeatability of 50 nm and a vertical measurement force of less than1.5 mN.
VL  - 39
IS  - 2
SN  - 0260-2288
DO  - 10.1108/SR-06-2017-0122
UR  - https://doi.org/10.1108/SR-06-2017-0122
AU  - Liu Fangfang
AU  - Wang Jingfan
AU  - Chen Lijuan
AU  - Li Ruijun
AU  - Xia Haojie
AU  - Yu Liandong
PY  - 2018
Y1  - 2018/01/01
TI  - Development and characterization of a high-sensitivity fiber Bragg grating-based vibrating nano-probe for 3D measurement
T2  - Sensor Review
PB  - Emerald Publishing Limited
SP  - 199
EP  - 207
Y2  - 2024/09/25
ER  -