新型二維光纖傾斜感測儀之研製

• Main Authors: Jia-feng Ho, 何嘉峰
• Other Authors: Tsair-chun Liang
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/15530917816891783811

碩士 === 國立高雄第一科技大學 === 電機工程研究所碩士班 === 104 === In recent years, natural disasters such as earthquakes, floods, droughts and hurricanes occur frequently in the world. Taiwan is located on the convergent boundary between the Eurasian plate and the Philippine Sea plate. It often suffers from seism that causes the destruction of buildings and people''s casualties. In this thesis, the optical fiber has been used as a sensor element to measure the public construction incline, and, we design a new mechanism of optical fiber tilt sensor to obtain a precise measurement. Optical fiber sensor has been widely used in public construction recently. It also has anti-electromagnetic interference, high sensitivity, light weight, good adaptability in shape, passive to electronic. The tilt sensor we have proposed in this research, which use four plastic optical fibers to orthogonally setup onto a pendulum structure. When the sensor is sloped, the pendulum will stretch or bend plastic optical fibers to change the output power. However, respectively receiving the illuminances by four photoresistors, and transmit to Arduino to work. We can obtain its relation amount of azimuth angle and tilt angle. The pendulum structure is hanging a heavy object by a spring, and which fixed with a plate. Thus, the heavy object can swing to any azimuth by gravity to achieve the tilt angle measuring of the two-dimension azimuth angle. The sensitivity of this tilt sensor can achieve every tilt angle "1°" in 16 azimuth angles. Furthermore, the result of Arduino will be uploaded to ThingSpeak by Wi-Fi. So, no matter computer, pad or smartphone, all can real time monitor the result of sensing project by ThingSpeak.