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Laser speckle method the ultrasonic drive birds mechanism and photoelectric induction bird design

Author: HuQing
Tutor: ZhuangQiRen
School: Huaqiao University
Course: Optics
Keywords: Laser speckle interferometry Ultrasonic wave Photoelectric detector High Voltage Transmission Line Bird damage
CLC: TN249
Type: Master's thesis
Year: 2011
Downloads: 58
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Abstract


The problem of this research project the physical principles of ultrasonic bird bird damage for high-voltage transmission lines , which designed the high-voltage transmission lines , which can be applied ultrasonic bird . In this thesis, using the laser scattered classes interference the tiny birds eardrum vibration studied under ultrasonic irradiation , to understand the birds eardrum ultrasound response to improve the effect of bird . Experiments using laser speckle interferometry method birds eardrum model analog measurement of the reference type , the experimental results show that the amplitude of vibration of the tympanic membrane by the birds , with the frequency of the ultrasound used in the ultrasonic frequency between 20KHz-80KHz , the vibration of the eardrum big margin ( between 40nm-80nm ) when the ultrasonic frequency greater than 80KHz birds eardrum vibration amplitude model decreases. Based on the above results , the design of this project a photoelectric sensor ultrasonic bird . Bird PIC16C54 microcontroller as the central control unit ( MCU ) , solar cells combined with lead-acid batteries as an uninterruptible power supply bird , bird emitted ultrasonic specific frequency of 20KHz-80KHz birds eardrum sensitive , and the frequency continuous random variation to reduce birds adaptability . The bird design photoelectric detection circuit , goals induction of birds , and then issue the ultrasonic bird to reach the purpose to save energy and improve the effect of bird . In this paper, the design of ultrasonic bird has been applied to the high - voltage transmission lines , can replace the traditional bird facilities , and the effect of bird .

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