Repository logo
  • English
  • 中文
Log In
Have you forgotten your password?
  1. Home
  2. College of Engineering / 工學院
  3. Mechanical Engineering / 機械工程學系
  4. High Performance FOV Switching Mechanism Design for an Infrared Zoom Lens
 
  • Details

High Performance FOV Switching Mechanism Design for an Infrared Zoom Lens

Date Issued
2009
Date
2009
Author(s)
Tsai, Cheng-Shi
URI
http://ntur.lib.ntu.edu.tw//handle/246246/187098
Abstract
The infrared zoom lens is applied extensively in the military use, such as detection, low-altitude observation and exploring. It has the features of being difficult to be found and able to easily observe the object. For military, in order to acquire a high-quality image and different FOVs (field of view), the infrared zoom lens must be capable of the high-speed precision alignment. In this thesis, we have designed and implemented a prototype of the dual field-of-view infrared zoom lens. The infrared zoom lens uses a permanent magnet DC motor as the actuator and a microcontroller as the controller. Through cooperation of two major sensor feedbacks, a shaft encoder and a position sensor, the FOV switching mechanism can achieve the goal of high-speed precision absolute alignment. Experimental results have shown a alignment accuracy average of radians and less than 0.5 second alignment time. Despite the influence of the non-zero backlash and the A/D uncertainty on the infrared zoom lens, the goal of alignment can be reached by the cooperation between the two major sensors and the controller. The control strategy, switching control, was proposed to help us to reach the goal of the high-speed precision absolute alignment.
Subjects
switching control
infrared zoom lens
dual field-of-view
absolute alignment
Type
thesis
File(s)
Loading...
Thumbnail Image
Name

ntu-98-R96522804-1.pdf

Size

23.53 KB

Format

Adobe PDF

Checksum

(MD5):9a0c28cb87be4dce315b46b5dcf2c2ba

臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。

To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of “NTU Repository” with “Academic Hub” to form NTU Scholars.

總館學科館員 (Main Library)
醫學圖書館學科館員 (Medical Library)
社會科學院辜振甫紀念圖書館學科館員 (Social Sciences Library)

開放取用是從使用者角度提升資訊取用性的社會運動,應用在學術研究上是透過將研究著作公開供使用者自由取閱,以促進學術傳播及因應期刊訂購費用逐年攀升。同時可加速研究發展、提升研究影響力,NTU Scholars即為本校的開放取用典藏(OA Archive)平台。(點選深入了解OA)

  • 請確認所上傳的全文是原創的內容,若該文件包含部分內容的版權非匯入者所有,或由第三方贊助與合作完成,請確認該版權所有者及第三方同意提供此授權。
    Please represent that the submission is your original work, and that you have the right to grant the rights to upload.
  • 若欲上傳已出版的全文電子檔,可使用Open policy finder網站查詢,以確認出版單位之版權政策。
    Please use Open policy finder to find a summary of permissions that are normally given as part of each publisher's copyright transfer agreement.
  • 網站簡介 (Quickstart Guide)
  • 使用手冊 (Instruction Manual)
  • 線上預約服務 (Booking Service)
  • 方案一:臺灣大學計算機中心帳號登入
    (With C&INC Email Account)
  • 方案二:ORCID帳號登入 (With ORCID)
  • 方案一:定期更新ORCID者,以ID匯入 (Search for identifier (ORCID))
  • 方案二:自行建檔 (Default mode Submission)
  • 方案三:學科館員協助匯入 (Email worklist to subject librarians)

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science