Abstract
Autonomous profiling observation of full-depth marine turbulence is very important for ocean research. Anisotropic turbulence near the boundary layer needs to be observed well. However, there is lack of high-spatial-resolution and high-sensitivity methods to fulfill vector turbulence observation. Hence, a highly sensitive bullet-headed MEMS shear probe for observing ocean vector turbulence is developed in this manuscript. The sensing mechanism, design and fabrication are demonstrated in detail. In order to meet the bandwidth requirements for observing ocean turbulence, we perform wet-mode simulations of probe structure to achieve an eigenfrequency of 490 Hz. Through sensitivity calibration experiments, it achieves a sensitivity of 4.84 × 10−2 V·m·s2/kg, which is much higher than those of shear probes reported previously. In addition, the vector test validates that the probe can measure ocean vector turbulence. The results show that the proposed probe is promising in autonomous profiling observation of marine turbulence.
Funder
National key research and development program
National Natural Science Foundation of China
Shanxi “1331 Project” Key Subject Construction
Subject
General Earth and Planetary Sciences
Reference26 articles.
1. Turbulent Flow;Pope,2010
2. Variational Estimation of Wave-Affected Parameters in a Two-Equation Turbulence Model
3. An Introduction to Ocean Turbulence;Thorpe,2007
4. Role of Mixed Layer Dynamics in Tropical North Atlantic Interannual Sea Surface Temperature Variability
5. Microstructure Measurement Form an Underwater Glider: Motion Analysis and Experimental Results;Weng;Proceedings of the IEEE OCEANS,2015
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献