Dissertation > Excellent graduate degree dissertation topics show

SiGe/Si Multi-Quantum Wells Film Materials Testing System

Author: ZhangJiaYin
Tutor: ShiQin
School: Nanjing University of Technology and Engineering
Course: Measuring Technology and Instruments
Keywords: infrared radiation SiGe/Si multi-quantum wells thermal property measurement FPGA USB2.0comunication LabVIEW
CLC:
Type: Master's thesis
Year: 2014
Downloads: 18
Quote: 0
Read: Download Dissertation

Abstract


Bolometer is one of the third generation uncooled infrared detector based on MEMS technology, and it has a very broad prospects in the field of civil and military. The infrared-sensitive film materials is the most important element in bolometer, and the film materials’TCR is important indicator, which directly determines the performance of bolometer. TCR also has relationship with lots of bolometer performance indicators such as responsivity, NETD and so on. On the one hand, film materials’TCR test result can evaluate thermal property of SiGe/Si multi-quantum wells infrared-sensitive pixel which has micro-bridge structure. On the other hand, the test result provides guidance in preparation processes of SiGe/Si multi-quantum wells infrared-sensitive film materials.According to the SiGe/Si multi-quantum wells pixel structure, film materials properties and working principle, this paper have designed SiGe/Si multi-quantum wells infrared-sensitive film materials testing system, which is used to test film materials’TCR. This paper also analyze heat capacity and thermal conductivity of multi-quantum wells film materials, then evaluates its thermal property.At first, this paper discuss the overall design scheme of testing system through analyzing the working principle of SiGe/Si multi-quantum wells pixel in vacuum environment.According to the general design scheme, the testing system circuits design is divided into three parts:Film array driver circuits design, Film array signal acquisition circuits design and Lab VIEW testing system software design.Finally, the measuring accuracy of testing system can reach1%, which can meet TCR test requirements. Secondly, we test SiGe/Si multi-quantum wells film materials samples, which TCR is up to2.24%/℃on average. Then we analyze thermal conductivity and heat capacity of samples, as well as evaluate the thermal property of the SiGe/Si multi-quantum wells film samples.

Related Dissertations

  1. Research on Nozzle Plume Temperature Distribution Measurement System,V434
  2. Study on Drive and Control System of Five-Phase PMSM Based on FPGA,TM341
  3. Design of Digital Predistorter for RF Power Amplifier Based on FPGA,TN722.75
  4. Optimizing and Realising Research on Vedio Compression in TV Guidance System,TN919.81
  5. Development of PMC High-speed Data Transmission Board Design Based on FPGA-RocketIO_X,TP274.2
  6. Development of Pxibus High Performance Digital I/O Module,TP274
  7. Oil -in-water type emulsified oil water hammer harmonic LabVIEW Simulation and Experimental Research demulsification,X703
  8. Erbium-doped fiber amplifier pump laser drive source research applications,TN248
  9. Axial fan blade vibration non-contact measurement,TD441.2
  10. The Power Quality Monitor Based on Virtual Instrument,TM76
  11. Control System Research for a Nano-Material Mixer,TP273.5
  12. Research PXI bus -based projectile speed module,TJ410.6
  13. The Design and Implementation of Face Detection Algorithm Based on FPGA Chip,TP391.41
  14. Design of Fuzzy PID Controller Based on FPGA,TP273.4
  15. The Research of Small Size Soccer Robot Control System Based on FPGA,TP242
  16. Research on Delay Compensation and Schedule Algorithms of Networked Control Systems,TP273
  17. Development and Research of the Measuring and Controlling System on Virtual Instrument,TH703
  18. Study on LabVIE-Based Measurement of Junction Temperature of LED and Its Photoelectric Properties,TN312.8
  19. Bridge designed for right-angle signal generator,TM935.2
  20. Research of Speed-Sensorless Vector Control System of Coal Mine Hoister Based on MRAS,TP273
  21. Algorithms based on LabVIEW storms sink wave machine control,TP273

CLC: >
© 2012 www.DissertationTopic.Net  Mobile