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ENGG1015 Tutorial

ENGG1015 Tutorial. Pro-Project Laboratory and Project 15 Oct (Supplementary notes, may be obsolete, NOT for examination ) Learning Objectives Identify components that can be used in the pre-project labs and project (i.e. Build a Rube Goldberg Machine )

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ENGG1015 Tutorial

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  1. ENGG1015 Tutorial • Pro-Project Laboratory and Project • 15 Oct (Supplementary notes, may be obsolete, NOT for examination) • Learning Objectives • Identify components that can be used in the pre-project labs and project (i.e. Build a Rube Goldberg Machine) • Identify electrical safety rules, electrical units, electrical symbols rules

  2. Electrical Safety • 5-10 ma can cause death • Skin resistance can range from 1kΩ for wet skin to 500kΩ for dry skin. • Death can result from as low as 50 volts • Body can sense 9 volts under the right conditions • Report TA or technician for any emergency case

  3. Electrical Units • Voltage (V): volts (μv → kv) • Current (I): amperes (amps), milliampere (ma 10-3) • Resistance (R): ohms Ω, k-ohms (k 103), meg ohms (m 106) • Capacitance (C): farad, microfarad (µf 10-6), nanofarad (nf 10-9), picofarad (pf 10-12) • Inductance (H): henry, millihenry, microhenry • Frequency (freq.): mhz, ghz 109

  4. Electrical Symbols

  5. Knowledge for the Pre-Project Lab • From circuit diagram to implementation

  6. Knowledge for the Pre-Project Lab • From circuit diagramto implementation

  7. Knowledge for the Pre-Project Lab Wire color scheme (red (DC), black (GND), yellow, blue, green) Wire to power supply Terminal Board Motor / Driver Sensor / Switch SS relay

  8. Digital Multi-meter (DMM) • Important debugging tool • Voltage DC: 2mv-1000v • Voltage AC: 2vac-750vac • Current: 2ua-10A • Resistance: 2-2m • BJT: beta test • Diode test

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