第31课 大气数据系统 LESSON 31 AIR DATA SYSTEM(8)

曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者

READING MATERIAL
QUESTIONS TO LESSON 32 READING MATERIAL
1. What is the laser gyro?
2. How does the production of the light beam (lasing ) occur in the gas discharge region?
3. Why is a high voltage discharge used between the cathods and anodes?
4. Where is light produced from the lasing reflected ?
5. Why is light produced from the lasing reflected at each corner of the triangle?
6. What does one of the 3 corner contain?
7. How to form the fringe pattern on the readout detector?
8. As long as the gyro is stationary, why is the fringe pattern also stationary?
9. What axis does the gyro rotate about?
10. Why are the two light beam frequency different?
11. Does the difference in frequencies cause the fringe pattern to move?
12. What is the use of photo diodes?
13. What is called “laser lock-in”?
14. What is the use of dither motor ?
15. Can the dither motor vibrations be felt on the IRU case?
EXERCISE
A. Find out the explanations of the following words in your “English-chinese technical dictionary”
   1. inertial reference system (IRS)            [ P1-80 ]
   2. flight management computer  (FMC)      [ P1-63 ]
   3. Digital-to- Analog                     [ P1-43 ]
   4. Laser gyro                            [ P1-90 ]
   5. ground speed (GS)                     [ P1-72 ]
   6. drift angle                           [ P1-49 ]

B. Translate the 1st and 2nd paragraphs of lesson 32 into chinese.

C. Explain the following abbreviations
   1. IRS
   2. IRU
   3. MSU
   4. DAA
   5. ISDU

D. Answer the question 1～15 that are given for lesson 32 reading
  material.
                       LESSON  33
GROUND PROXIMITY WARNING SYSTEM

VOCABULARY
1. FAA = Federal Aviation Administration   [美]联邦航空局
       ['fedrl][eivi'ein][d'minis'trein]
2. GPWS = Ground proximity warning system    近地警告系统
               [pr  k'simiti]
　
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：第31课 大气数据系统 LESSON 31 AIR DATA SYSTEM(8)