V. Turkani, B. B. Narakathu, D. Maddipatla, B. Altay, P. D. Fleming, B. Bazuin, M. Atashbar
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引用次数: 10
摘要
成功地开发了一种全印刷镍基电阻温度检测器(RTD)，用于汽车，农业和消费电子行业的温度传感应用。采用丝网印刷工艺将镍(Ni)油墨沉积在柔性聚酰亚胺(PI)衬底上制备RTD。通过在- 60°C到180°C的温度范围内，以20°C为步长，测量了打印的RTD的电阻响应，并分析了其线性、灵敏度和可重复性等传感特性。与基电阻(9.6 k Ω)在−60℃时相比，打印的RTD在180°C时表现出高达109%的线性响应。计算得到的电阻温度系数(TCR)为0.45%/℃，相关系数为0.94。此外，打印的RTD的瞬态响应对动态加热和冷却循环具有良好的可重复性。
Nickel Based Printed Resistance Temperature Detector on Flexible Polyimide Substrate
A fully printed nickel (Ni) based resistance temperature detector (RTD) was successfully developed for temperature sensing applications in the automobile, agricultural and consumer electronic industries. The RTD was fabricated by depositing nickel (Ni) ink on a flexible polyimide (PI) substrate using screen printing process. The capability of the printed RTD was demonstrated by measuring its resistive response for temperatures varying from −60°C to 180 °C, in steps of 20°C and its sensing characteristics such as linearity, sensitivity and repeatability were analyzed. The printed RTD demonstrated a linear response with resistive changes as high as 109% at 180°C, when compared to its base resistance (9.6 k Ω) at −60°C. A temperature coefficient of resistance (TCR) of 0.45%/°C, with a correlation coefficient of 0.94 was calculated for the printed RTD. In addition, the transient response of the printed RTD demonstrated a good repeatability towards dynamic heating and cooling cycles.
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