Digital Techniques & Electronic Instrument Systems EASA Module 05 for Aircraft Maintenance [Paperback] [Jan 01, 2015] Aircraft Technical Book Company

Today’s aircraft increasingly rely on digital technology and complex electronic systems, not just for instrumentation, navigation, and communications, but today even for flight controls, system monitoring, maintenance planning, and more and more. Fiber optics and fly-by-wire is no longer the exception, but the rule. It is no longer limited to military, but now the basis of private and commercial aircraft both large and small. This module presents the B1 or A&P mechanical technician with what he or she needs to know for both a general understanding of these systems and the ability to work around them in an efficient and safe manner. An advanced version of this book, Module 5/B2 is also available from Aircraft Technical Book Company (available April 2015) which covers these topics to the greater depth required for the B2 or SpaceTEC/CertTec rated avionics and electronics specialist. Digital Techniques EASA Module 05 1 Contents 11 Welcome 5 Forward 6 Revision Log 10 Preface 7 Acknowledgments 10 Sub-Module 01 15 Electronic Instrument Systems 15 Knowledge Requirements 15 Electronic Instrument Systems 16 Analog Instruments 16 Digital Instruments 16 Electronic Displays 17 Electronic Flight Instrument System 17 Engine Indication And Crew Alerting System 19 Questions 23 Answers 24 Sub-Module 02 25 Numbering Systems 25 Knowledge Requirements 25 Numbering Systems 26 Decimal 26 Binary 26 Place Values 26 Binary Number System Conversion 27 Octal 28 Octal Number System Conversion 28 Hexadecimal 30 Hexadecimal Number System Conversion 30 Binary Coded Decimals 30 Questions 31 Answers 32 Sub-Module 03 33 Data Conversion 33 Knowledge Requirements 33 Data Conversion 34 Analog Data 34 Digital Data 35 Analog To Digital Conversion 35 Digital To Analog Conversion 35 Questions 39 Answers 40 Sub-Module 04 41 Data Buses 41 Knowledge Requirements 41 Data Buses 42 MIL-STD-1553B 42 ARINC 429 44 ARINC 629 45 Aircraft Networks/Ethernet 46 ARINC 664 AFDX 46 IEEE 1394 Firewire 47 Questions 49 Answers 50 Sub-Module 05 51 Logic Circuits 51 Knowledge Requirements 51 Logic Circuits 52 Logic Gates 52 NOT Gate 52 Buffer Gate 52 AND Gate 53 OR Gate 53 NAND Gate 53 NOR Gate 54 Exclusive OR Gate 55 Exclusive NOR Gate 55 Negative Logic Gates 55 Digital Circuits 56 Aircraft Logic Circuit Applications 56 Questions 59 Answers 60 Sub-Module 06 61 Basic Computer Structure 61 Knowledge Requirements 61 Computer Architecture 62 Bits, Bytes, And Words 62 Software 64 Hardware 64 Central Processing Unit 64 Memory (RAM, ROM, PROM) 65 Integrated Circuits 66 Aircraft Computer Systems 66 Questions 69 Answers 70 Sub-Module 07 71 Microprocessors 71 Knowledge Requirements 71 Sub-Module 08 73 Integrated Circuits 73 Knowledge Requirements 73 Sub-Module 09 75 Multiplexing 75 Knowledge Requirements 75 Sub-Module 10 77 Fiber Optics 77 Knowledge Requirements 77 Fiber Optics 78 Advantages And Disadvantages 78 Fiber Optic Data Bus 79 Related Terms 79 Terminations 79 Couplers And Terminals 80 Applications In Aircraft Systems 81 Questions 83 Answers 84 Sub-Module 11 85 Electronic Displays 85 Knowledge Requirements 85 Electronic Displays 86 Cathode Ray Tubes 86 Light Emitting Diodes 86 Liquid Crystal Displays 87 Active Matrix Liquid Crystal Display 88 Questions 91 Answers 92 Sub-Module 12 93 Electrostatic Sensitive Devices 93 Knowledge Requirements 93 Electrostatic Sensitive Devices 94 Risks And Possible Damage 94 Anti-Static Protection 95 Controlled Environment 95 Static-Safe Workstation 95 Anti-Static Wrist Straps 95 Grounding Test Stations 96 Ionizers 96 Special Handling 96 Questions 99 Answers 100 Sub-Module 13 101 Software Management Control 101 Knowledge Requirements 101 Software Management Control 102 Restrictions And Catastrophic Effects 102 Airworthiness Requirements 102 Questions 105 Answers 106 Sub-Module 14 107 Electromagnetic Environment 107 Knowledge Requirements 107 Electromagnetic Environment 108 Electromagnetic Interference (EMI) 108 High-Intensity Radiated Field (HIRF) 108 Lightning/Lightning Protection 109 Electromagnetic Compatibility (EMC) 110 Questions 111 Answers 112 Sub-Module 15 113 Typical Electronic/Digital Aircraft Systems 113 Knowledge Requirements 113 Digital Aircraft Systems 114 Introduction 114 Electronic Instrument Systems 116 Electronic Flight And Engine Instruments 116 Integrated Modular Avionics (IMA), Information Systems, And Built-In Test Equipment (BITE) 116 Communications, Navigation And Surveillance Systems 117 Aircraft Communication Addressing And Reporting System (ACARS) 117 Inertial Navigation System (INS) 118 Ring Laser Gyros 119 Micro-Electro-Mechanical System (MEMS) 119 Global Positioning System (GPS) 120 Flight Management System (FMS) 121 Traffic Alert And Collision Avoidance System (TCAS) 122 Flight Control Systems 124 Mechanical Flight Control Systems 124 Automatic Digital Flight Control Systems 125 Cabin Systems 126 Questions 129 Answers 130 Acronym INDEX 133 Index 137