Aircraft Instruments

Electronic Instrument System and logic gates Typical system arrangement and cockpit layout of Electronics instrument systems. Numbering System: binary, octal and hexadecimal: Demonstration of conversion between the decimal And binary, octal and hexadecimal systems and vice versa. Logic Circuits: Identification of common logic gate symbols and equivalent circuits. Application used for aircraft systems.

Data Conversion and data buses Analogue Data, Digital Data: Operation and application of analogue to digital, and digital to analogue converters, inputs and outputs, limitations of various types Data Buses: Operation of data buses in aircraft systems, including knowledge of ARINC and other specifications. schematic diagrams. Interpretation of logic diagrams.

• Microprocessors Functions performed and overall operation of a microprocessor. Basic operation of each of the following microprocessor elements: control and processing unit, clock, register, arithmetic logic unit.
• Integrated Circuits Operation and use of encoders and decoders; Function of encoder types; Uses of medium, large and very large scale integration. Multiplexing. Operation, application and identification in logic diagrams of multiplexers and de-multiplexers.

• Fiber Optics Advantages and disadvantages of fiber optic data transmission over electrical wire propagation: Fiber optic data bus, Fiber optic related terms, Termination, Couplers, control terminals, remote terminals. Application of fiber optics in aircraft systems.
• Electronic Displays Principles of operation of common types of displays used in modern aircraft, including Cathode Ray
• Tubes, Light Emitting Diodes and Liquid Crystal Display. Electrostatic Sensitive Devices. Special handling of components sensitive to electrostatic discharges. Awareness of risks and possible damage, component and personnel anti-state protection devices.

• Electromagnetic Environment Influence of the following phenomena on maintenance practices for electronic system: EMC- Electromagnetic Compatibility EMI Electromagnetic Interference HIRF-High Intensity, Radiated Field. Lightning, lightning protection.
• Digital aircraft system and associated BITE (Built in Test Equipment) Such as: ACARS-ARINC Aircraft Communication & Addressing and Reporting System, ECAM- Electronics. Centralized Aircraft Monitoring. EFIS-Electronics Flight Instrument System, EICAS- Engine Indication & Crew Alerting System, FBW-Fly by Wire, FMS-Flight Management System, GPS- Global Positioning System & IRS-Inertial Reference System.