A Flexible Flow Sensor System and Its Characteristics for Fluid Mechanics Measurements
AbstractIn this paper, we present a novel micromachined hot-film flow sensor system realized by a technique using a film depositing processes and incorporating a standard printed circuit. Sensor electrodes and electronic circuits are preprinted on a flexible substrate of polyimide (PI), i.e., a flexible printed circuit board (FPCB). The sensing element, which is made of Cr/Ni/Pt with a temperature coefficient of resistance around 2,000 ppm/K, is fabricated on the FPCB by either magnetron sputtering technology or pulsed laser deposition (PLD). The sensor can be packed efficiently at high-density and integrated with signal processing circuits without additional pads. A simple fabrication process using mature technique and materials selection guarantees that the time and costs are greatly reduced. Both steady-state and transient characteristics of the sensors are experimentally tested, and the results presented to validate the effectiveness of the sensors.
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Liu, P.; Zhu, R.; Que, R. A Flexible Flow Sensor System and Its Characteristics for Fluid Mechanics Measurements. Sensors 2009, 9, 9533-9543.
Liu P, Zhu R, Que R. A Flexible Flow Sensor System and Its Characteristics for Fluid Mechanics Measurements. Sensors. 2009; 9(12):9533-9543.Chicago/Turabian Style
Liu, Peng; Zhu, Rong; Que, Ruiyi. 2009. "A Flexible Flow Sensor System and Its Characteristics for Fluid Mechanics Measurements." Sensors 9, no. 12: 9533-9543.