Exact(3)
A simple synthetic-wavelength self-mixing interferometer is proposed for precision displacement measurement.
Experimental results verifies the synthetic wavelength self-mixing interferometer's ability of measuring nanoscale displacement, which provides a potential approach for contactless precision displacement measurement in a number of scientific and industrial applications.
Precision displacement sensors at both ends of the core holder (with an accuracy of 0.001 mm) record compaction displacements.
Similar(57)
The researchers are now looking at applying their same approach for ultra-high-precision displacement control, this time with an actual photovoltaic cell to generate electricity directly from heat.
For real measurement, the experimental results show that the proposed interferometer system can be applied to high-precision displacement measurement in real time.
The piezo-driven compliant stage consists of compliant mechanisms for both motion guidance and displacement amplification, stack-type piezoelectric elements, and high-precision displacement sensors.
This paper proposes a robust discrete time Kalman filter (RDKF) for the dynamic compensation of nonlinearity in a homodyne laser interferometer for high-precision displacement measurement and in real time.
The method was evaluated regarding accuracy and precision of displacement measurements, effects of FE mesh size, displacement noises, and simple bootstrapping.
We have evaluated the method in terms of accuracy and precision of displacement measurements, simulation of traction force recovery, simulation of displacement noises effect, assessment of effects of FE mesh size, and simple bootstrapping.
Numerical results of synthetic speckle images indicate that the set of algorithm can enhance the accuracy and precision of displacement measurement, especially for spatially variant speckle images.
The feasibility and effectiveness of the self-adaptive algorithm are carefully verified through a set of well-designed synthetic speckle images, which indicates that the presented algorithm is able to greatly enhance the accuracy and precision of displacement measurements as compared with the traditional subpixel registration methods.
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