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GET130 Intro to Engineering Technology Fall 2015 we have already seen use of the scientific calculator and spreadsheet program as tools for the engineering technologist what are some other tools? 2 electronic balance scale can have accuracy of 0.1 g or better multiple units: ◦ grams (g) ◦ ounces (oz) ◦ troy ounce (oz t) 1 oz t ≅ 1.1 oz ◦ pennyweight (dwt) 1 dwt = 1 20 oz t 3 vernier/dial caliper – used for precise distance measurements up to approx. 6" can measure inside diameter (ID), outside diameter (OD) or depth 4 diagram from http://www.tpub.com/engine2/en2-29.htm usage video: https://www.youtube.com/watch?v=_7-6ALptqQQ 5 micrometer – used for precise thickness measurements, typically in machining 6 add together major, minor, and thimble units Answer: 7 Internet word processor spreadsheet presentation mathematic apps – MATLAB visualization / rapid dev. - LabVIEW Adobe Acrobat (PDFs) 8 started as a US DoD-funded project in the 1970s ◦ now spans the globe divided into Top-Level Domains (TLDs) based on packet-based protocols and IP addresses edu mil gov com org net XX TLDs US Educational US Military US Government US Commercial Non-profit Network 2-letter Country Code uk = United Kingdom cn = China de = Germany 9 underlying protocols ◦ Internet Protocol (IP) – packet delivery ◦ Transmission Control Protocol (TCP) – reliability user application protocols ◦ ◦ ◦ ◦ ◦ Telnet – interactive session on remote computer File Transfer Protocol (FTP) – transfers files Simple Mail Transfer Protocol (SMTP) – movement of email Network Time Protocol (NTP) – time synchronization Hypertext Transfer Protocol (HTTP) – movement of HTML pages over the world-wide web, created by Tim BernersLee 1989† † http://www.w3.org/People/Berners-Lee 10 Library of Congress: www.loc.gov Internet Public Library: www.ipl.org Merriam-Webster: www.merriam-webster.com Better Business Bureau: www.bbb.org Wall Street Journal: www.wsj.com CNET: www.cnet.com College Board Online: www.collegeboard.com All Music Guide: www.allmusic.com Census Bureau: www.census.gov Search gov: www.searchgov.com National Institutes of Health: www.nih.gov National Aeronautics and Space Administration (NASA): www.nasa.gov National Weather Service: www.weather.gov careerbuilder.com: www.careerbuilder.com 11 tool to create and edit text advanced features ◦ ◦ ◦ ◦ formatting – text/page equations - mathematics tables – data presentation/summary diagrams - illustrations uses: ◦ letters, memorandums ◦ lab / experiment reports ◦ technical reports ex: MS Word, OpenOffice, LibreOffice 12 tool to track & summarize numeric and other data originated from accounting / finance fields ◦ VisiCalc (1978), Lotus 1-2-3 (1983) features: ◦ ◦ ◦ ◦ row/column grid of cells built-in functions, data manipulation graphing macros ex: MS Excel, OpenOffice, LibreOffice 13 tool to organize & communicate ideas & facts visually ◦ via “slides” views: ◦ ◦ ◦ ◦ ◦ slide/edit – 1 slide at a time outline – text display sorting – shows all slides in a grid, easy sorting notes – attach text notes/comments to each slide show – for presentation ex: MS PowerPoint, OpenOffice, LibreOffice 14 MATLAB (matrix laboratory) is a multi-paradigm numerical computing environment and fourth-generation programming language. Developed by MathWorks, MATLAB allows matrix manipulations, plotting of functions and data, implementation of algorithms, creation of user interfaces, and interfacing with programs written in other languages† MATLAB® is a high-level language and interactive environment for numerical computation, visualization, and programming. Using MATLAB, you can analyze data, develop algorithms, and create models and applications‡ † http://en.wikipedia.org/wiki/MATLAB ‡ http://www.mathworks.com/products/matlab 15 ∗ MATLAB R2011a running on Windows 7 16 LabVIEW (short for Laboratory Virtual Instrument Engineering Workbench) is a system-design platform and development environment for a visual programming language from National Instruments† LabVIEW is a highly productive development environment for creating custom applications that interact with real-world data or signals in fields such as science and engineering‡ A fun, graphical computer development environment with emphasis on data processing and visualization∗ † http://en.wikipedia.org/wiki/LabVIEW ‡ http://www.ni.com/newsletter/51141/ ∗ J. Sumey 17 Front Panel Block Diagram 18 digital multimeter (DMM) ◦ a highly useful tool for measuring static electrical circuit characteristics voltage, current, resistance, continuity ◦ hand-held or benchtop ◦ ranges from $6 to $500+ on-line resources: ◦ How to Use a DMM ◦ Using a DMM 19 oscilloscope (scope) ◦ a highly useful instrument for viewing time-varying characteristics of circuit signals typically voltage only ◦ generally benchtop ◦ ranges from $200 to $40k ◦ many on-line resources & tutorials! 20 (solderless) breadboard ◦ a handy tool for quickly prototyping electronic circuits without hard soldered connections ◦ many sizes available ◦ has particular internal connections ◦ $5 - $80 Nice! Horrible! 21 Ohm’s Law ◦ the fundamental equation of electric circuits ◦ Volts (V) = Current (I) x Resistance (R) volts are measured in volts (V) current measured in Amperes (Amps) resistance measured in Ohms () 22 “Calipers” • en.wikipedia.org/wiki/Calipers Dial Caliper Simulator ◦ www.stefanelli.eng.br/en/dial-caliper-pachymeter-calliper-simulatorinch-one-thousandth.html "Micrometer" ◦ en.wikipedia.org/wiki/Micrometer Internet Resource Guide ◦ www.infoplease.com/ipa/A0777781.html LabVIEW ◦ www.ni.com/labview MATLAB ◦ www.mathworks.com/products/matlab "Oscilloscope" ◦ en.wikipedia.org/wiki/Oscilloscope 23