5 episodi

These videos provide an introduction to each of the five required labs, including concepts, lab equipment, and procedures.

License: Creative Commons BY-NC-SA
More information at http://ocw.mit.edu/terms
More courses at http://ocw.mit.edu

Electromagnetic Energy: From Motors to Lasers MIT

    • Tecnologia

These videos provide an introduction to each of the five required labs, including concepts, lab equipment, and procedures.

License: Creative Commons BY-NC-SA
More information at http://ocw.mit.edu/terms
More courses at http://ocw.mit.edu

    • video
    Lab 1: DC Motors

    Lab 1: DC Motors

    This is an introductory lab designed to introduce you to the oscilloscope and MATLAB. You will measure the angular velocity of your home-built motor and characterize a DC motor by measuring its motor constant.

    • 20 min
    • video
    Lab 2: Shooting Magnets

    Lab 2: Shooting Magnets

    In this lab, we will characterize a coilgun launcher. A coilgun is a device that accelerates a ferromagnetic projectile using the magnetic force.

    • 3 min
    • video
    Lab 3: Liquid Crystal Displays

    Lab 3: Liquid Crystal Displays

    In this lab, we will construct and characterize a single liquid crystal pixel. The construction includes grooving the substrates to align the liquid crystals, assembling the display cell, and filling the cell with spacers and the liquid crystal material.

    • 11 min
    • video
    Lab 4: Spectrometer

    Lab 4: Spectrometer

    In this lab you will be exploring many aspects of optics. In class you learned about light polarization, Snell's law, critical angle, gratings, Fresnel equations and Brewster's angle. We will now be experimentally verifying all of these concepts.

    • 18 min
    • video
    Lab 5: Quantum Mechanical Tunneling

    Lab 5: Quantum Mechanical Tunneling

    In this lab, we will analyze a piece of material composed of nickel in rubber that exhibits a nonlinear current versus voltage (I-V) relationship due to the dominance of tunneling in the conduction process, and build a simple resistive touchpad.

    • 13 min

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