Thesis project "Development of the construction unit of measurement"

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Uploaded: 19.12.2006
Content: diplom_001.rar (829,83 kB)

Description

the theme of "Development of the construction unit of measurement of electrical parameters of the sound frequency channels"
Explanatory note 104 pages (+ Technical Reference (TOR), the analysis of the TOR) 18 figures, 32 tables, 28 literature sources, the application 13 sheets (drawings made in KOMPAS, A1-7 pcs., A4-6 pcs.)
Keywords: Digital Audio signal generators, digital to analog conversion, analog to digital conversion, digital processing of signals, digital signal processor, INTERFACE RS232.

Additional information

The aim of this work is to design a system of measurement of electrical parameters of channels of audio frequency. The system allows: the generation of single- or multi-frequency signal in the frequency range of 20Hz - 20kHz frequency in increments of 1 Hz and an amplitude of 2V, the measurement of the signal frequency range 1020Gts levels from -30dB to + 16dB with an accuracy 0,1dB (it is relative to the level of 0.775 B) signal frequency measurement monotonalnogo range from 20Hz to 20kHz with an accuracy of 1 Hz.

As a result, graduate design was developed in accordance with the terms of reference electronic module electrical parameters meter channel audio frequency. The analysis of methods of construction of digital audio signals generators, designed structural and electrical schematic block diagrams of the meter. Also, an algorithm was developed enlarged operation of the unit meter, calculated the power consumption and reliability of the designed device.
The design and technology of the information and held a patent search, were designed and selected designs and printed board assembly unit. Technological parameters were calculated for the designed system of measurements and developed a working process assembly unit.
The feasibility of this section The choice of circuitry and a comparison of the two versions designed measurement system, the results of which are summarized in the summary table of technical and economic parameters. Designed technical and economic effect of the introduction of this device and the annual operating costs for Servicing engineered products.
Under occupational health and the environment have been established the required organizational and technical measures to protect personnel and the environment from the harmful effects of the production process. Calculated protective device grounding. Presents measures to fire.
All calculations have been carried out strictly in accordance with the technical specifications.
At graduation design to create an explanatory note has been used a powerful, versatile and popular word processor company Microsoft - Word 2002. To create explanatory drawings inserted in the text of the explanatory note, the standard editing Windows 2000 operating system - Paint 5.0. To create diagrams and drawings were used 5.11 Compass system, allows you to quickly and easily create documentation in accordance with Russian standards. PCB layout has been made in the system through the design OrCad 9.2.

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