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Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer
นักวิจัย : Ang, Wan Chia , Kropelnicki, Piotr , Tsai, Julius Ming Lin , Leong, Kam Chew , Tan, Chuan Seng
คำค้น : DRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2557
อ้างอิง : Ang, W. C., Kropelnicki, P., Tsai, J. M. L., Leong, K. C., & Tan, C. S. (2014). Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer. Procedia engineering, 94, 6-13. , http://hdl.handle.net/10220/25084 , http://dx.doi.org/10.1016/j.proeng.2013.10.013
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Procedia Engineering
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

It is demonstrated for the first time that the Wheatstone bridge structured metal thin film resistive uncooled microbolometer (in short, WB-bolometer) provides promising temperature sensitivity. This paper describes the design, simulation, and characterization of WB-bolometer using titanium nitride (TiN) thin film as the infrared (IR) sensing material. TiN thin film is designed into four resistors which are connected to each other in Wheatstone bridge configuration. The resistance value of each resistor changes with different rates upon IR absorption, which can be attributed to the difference in their associated thermal conductance. As a result, the bridge output voltage varies in response to the absorbed IR power. Simulation was employed to compare and characterize different designs of WB-bolometer. It was found that design with two sensing elements has the optimum performance. The proposed WB-bolometer is also capable of operating at elevated temperatures (> 250 oC) due to its adjustable and small initial offset voltage with minimum associated noise.

บรรณานุกรม :
Ang, Wan Chia , Kropelnicki, Piotr , Tsai, Julius Ming Lin , Leong, Kam Chew , Tan, Chuan Seng . (2557). Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Ang, Wan Chia , Kropelnicki, Piotr , Tsai, Julius Ming Lin , Leong, Kam Chew , Tan, Chuan Seng . 2557. "Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Ang, Wan Chia , Kropelnicki, Piotr , Tsai, Julius Ming Lin , Leong, Kam Chew , Tan, Chuan Seng . "Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print.
Ang, Wan Chia , Kropelnicki, Piotr , Tsai, Julius Ming Lin , Leong, Kam Chew , Tan, Chuan Seng . Design, simulation and characterization of wheatstone bridge structured metal thin film uncooled microbolometer. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.