期刊
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
卷 9, 期 1, 页码 163-173出版社
KOREAN SOC PRECISION ENG
DOI: 10.1007/s40684-020-00282-8
关键词
Flow sensors; Autonomous underwater vehicles (AUVs); Neuromast; Pillar-based sensor; Pressure sensor; Piezoresistive sensor
资金
- Industrial Source Technology Development Program of the MOTIE (Ministry Of Trade, Industry and Energy), Korea [10060065]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10060065] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This study presents a pillar-based flow sensor that mimics the working principle of fish neuromasts for sensing water flow. The sensor fabrication process is simple and cost-effective, and it accurately measures hydrodynamic flow rate and direction.
Attaining the information of the hydrodynamic flow rate and direction is essential to the maneuvering of autonomous underwater vehicles (AUVs). This work presents a pillar-based flow sensor that measures hydrodynamic flow rate and direction. We propose a design that mimic the working principle of the neuromast, a ubiquitous organ in fishes that sense the water flow. By utilizing advances in piezo-resistive pressure sensors and 3D printing technology, sensor fabrication becomes fast and cost-effective, owing to reductions in labor and material cost for small batches. Measured results showed that the sensor sensitivity was 9.24 mV/m/s in the single mode and 20.3 mV/m/s in the differential mode. The resolution of the flow sensor was measured to be 4.93 mm/s in the water tunnel testing. The angular resolution of the flow sensor was 2.25 degrees.
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