Download Aircraft Digital Electronic and Computer Systems: by Tooley M. PDF

By Tooley M.

Butterworth-Heinemanns airplane Engineering rules and perform sequence offers scholars, apprentices and working towards aerospace execs with the definitive assets to strengthen your plane engineering upkeep stories and career.
Delivers the basic ideas and information base required by way of authorized plane engineers following EASA Part-66 qualification routes. The ebook offers systematic assurance of Module five in addition to crucial underpinning wisdom for Modules eleven and thirteen of the EASA Part-66 syllabus. The booklet can be necessary for these following BTEC awards in aerospace engineering in addition to air strength body of workers and Airframe and Propulsion (A&P)Mechanics within the US. finished and available, with self-test questions, workouts and a number of selection inquiries to improve studying for either self sustaining and tutor-assisted studyAccompanied by means of online assets and an internet photograph financial institution to be used in lecture displays and in educating fabrics.

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Extra resources for Aircraft Digital Electronic and Computer Systems: Principles, Operation and Maintenance

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Chapter 5 Logic circuits An ability to make decisions based on a variety of different factors is crucial to the safe operation of a modern aircraft. It is therefore not surprising that logic systems are widely used in aircraft today. ) together with the symbols and truth tables that describe the operation of the most common logic gates. We then show how these gates can be used in simple combinational logic circuits before moving on to introduce bistable devices, counters and shift registers. The chapter concludes with a brief introduction to the two principal technologies used in modern digital logic circuits, TTL and CMOS.

E. e. 28) different output voltage levels. e. 210) different voltage levels. e. bits) used in the conversion. Key Point The resolution of a DAC depends on the number of bits used in the conversion process—the more bits the greater the resolution. Typical DAC have resolutions of 8, 10 or 12 bits. 3 Analogue to digital conversion The accuracy of a DAC depends on the accuracy of the resistance values used as well as the accuracy of the reference voltage. Typical DAC have accuracies of 1% or 2%. 8.

5. The decimal number 37 is equivalent to the binary coded decimal (BCD) number: (a) 00110111 (b) 00100101 (c) 00101111. Aircraft digital electronic and computer systems 6. Which one of the following numbers could NOT be an octal number? (a) 11011 (b) 771 (c) 139. 7. The octal number 73 is equivalent to the decimal number: (a) 47 (b) 59 (c) 111. 8. The binary number 100010001 is equivalent to the octal number: (a) 111 (b) 273 (c) 421. 9. The hexadecimal number 111 is equivalent to the octal number: (a) 73 (b) 273 (c) 421.

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