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lab1_Fall10 - ME 365 EXPERIMENT 1 FAMILIARIZATION WITH...

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1 ME 365 EXPERIMENT 1 FAMILIARIZATION WITH COMMONLY USED INSTRUMENTATION Objectives: The primary goal of this laboratory is to study the operation and limitations of several commonly used pieces of instrumentation: an oscilloscope, function generator, and digital multimeter. These devices will be used to study the behavior of a second order system. The system will be the series combination of a resistor, a capacitor and an inductor (RLC circuit). After completing this lab, you should be able to: Explain how loading occurs and how it affects measurements. Convert peak voltages to RMS voltages. Understand why the oscilloscope has AC/DC coupling and when it should be used. Use the lissajous figure to compare the phase between two signals. General Information: The Oscilloscope: Oscilloscopes are versatile instruments used to display constant or time varying voltages. The Agilent Technologies DSO3102A Digital Storage Oscilloscope used in the ME365 laboratory is a two channel unit with a maximum sensitivity of 2 mV/division and a useful frequency range from 0 Hz to 100 MHz. To use the oscilloscope, turn on the unit by pressing the power button on the lower left corner of the display. The front panel of the DSO3102A contains a series of knobs and buttons. Knobs are used most often to make adjustments. Buttons are used for run controls and to change other oscilloscope settings via menus. Figure 1 shows a picture of the front panel controls for the oscilloscope. The definitions for the specific buttons and knobs are as follows: Measure Controls: Cursors and Measure menu buttons. Waveform Controls: Acquire and Display menu buttons. Menu Controls: Save/Recall and Utility menu buttons. Vertical Controls : Vertical position knobs, vertical scale knobs, channel (1 , 2 ), Math , and Ref menu buttons.
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Laboratory 1 Familiarization with Commonly Used Instrumentation ME 365 2 Horizontal Controls: Position knob, Main/Delayed menu button, and scale knob. Trigger Controls: Trigger Level knob, 50% , Mode/Coupling , and Force buttons. Run Controls: Run/Stop , Single , and Auto-Scale buttons. Menu Defined Buttons: Five gray buttons from top to bottom which select the adjacent menu items in the currently displayed menu. Entry Knob: For the adjustment defined controls. Figure 1: Front Panel Controls When one of the oscilloscope front panel buttons turns on a menu, you can use the five menu buttons to select items from the menu. The Menu On/Off button turns on or off the menu of the last accessed menu. The 5½ Digit Multimeter / Power Supply The Agilent U3606a 5½ Digit Multimeter is a versatile tool for measuring constant and time varying signals. It also adds the ability to measure frequency, pulse width and capacitance. In the same chassis, a 30 watt programmable DC power supply has been added as well making the instrument even more versatile. This DC power supply can supply up to 30 volts DC at 1 amp or up to 8 Volts DC at 3 Amps. It also can be used to generate up to a 4.8Khz square wave
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Laboratory 1 Familiarization with Commonly Used Instrumentation
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