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Many sensors produce analog (continuous) electrical signals. Once recorded, these signals are scaled to determine the magnitude of the physical phenomenon. In this lab, you will learn about some common methods for recording and displaying voltage signals. Your focus will not be on any particular sensing technology. In the process of performing the lab exercises, you will learn about hardware and software that you will use throughout the semester.

Introduction:

Many sensors produce analog (continuous) electrical signals. Once recorded, these signals are scaled todetermine the magnitude of the physical phenomenon. In this lab, you will learn about some common methods for recording anddisplaying voltage signals. Your focus will not be on any particular sensing technology. In the process of performing the labexercises, you will learn about hardware and software that you will use throughout the semester.

Teaching objectives:

  • Learn to use a function generator to produce a variety of voltage signals.
  • Become familiar with an oscilloscope and use it to record and analyze voltage signals.
  • Become familiar with the lab PCs and PC-based data acquisition hardware.
  • Learn how to write a simple LabVIEW VI to read a voltage signal and write data to a file.

Procedure:

Part 1: creating a signal with the function generator

Throughout this lab you’ll be asked to create different signals with the function generator. The functiongenerator at your workstation. Can create periodic square waves, sine waves and triangle waves. These waveforms can be injected intoa circuit under test and analyzed as the waveform progresses to confirm the proper operation of the device or to pinpoint a fault.Try to be accurate, but don’t waste a lot of time trying to get the“exact”frequency or voltage levels listed. The purpose of this lab does not depend on meeting exact values; rather, this lab is tohelp you become familiar with how the signal characteristics can be manipulated.

1. Turn on the oscilloscope and the function generator.

2. Use the frequency range buttons along the top of the function generator to produce a sine wave with afrequency in the range of 200 to 500 Hz.

3. Use the frequency knob (bottom left) to adjust the frequency.

4. Adjust the signal amplitude and DC offset.

Press the Display Select button next to the LCD readout.

Turn the appropriate knobs located on the right side of the function generator (above the BNCconnector).

5. Using a BNC cable, connect the MAIN OUT of the function generator to CH 1 of the oscilloscope.

6. Use the CH 1 and CH 2 buttons on the o-scope to turn the channels On or Off (e.g. to turn off CH 2,press CH 2 and then press OFF).

7. Push the AUTOSET button. This will set the triggering, horizontal and vertical so that the signal is displayednicely on the screen.

Part 2: analyzing a signal with an oscilloscope

The digital oscilloscope (o-scope) is used for viewing voltage signals that change with time. The o-scope measuresvoltage and displays thousands of samples over time. It is easier to visualize the characteristics of a signal with an oscilloscopethan with a digital multimeter.

Questions & Answers

what is math number
Tric Reply
x-2y+3z=-3 2x-y+z=7 -x+3y-z=6
Sidiki Reply
Need help solving this problem (2/7)^-2
Simone Reply
x+2y-z=7
Sidiki
what is the coefficient of -4×
Mehri Reply
-1
Shedrak
the operation * is x * y =x + y/ 1+(x × y) show if the operation is commutative if x × y is not equal to -1
Alfred Reply
An investment account was opened with an initial deposit of $9,600 and earns 7.4% interest, compounded continuously. How much will the account be worth after 15 years?
Kala Reply
lim x to infinity e^1-e^-1/log(1+x)
given eccentricity and a point find the equiation
Moses Reply
12, 17, 22.... 25th term
Alexandra Reply
12, 17, 22.... 25th term
Akash
College algebra is really hard?
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Carole
I'm 13 and I understand it great
AJ
I am 1 year old but I can do it! 1+1=2 proof very hard for me though.
Atone
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Adu
Not really they are just easy concepts which can be understood if you have great basics. I am 14 I understood them easily.
Vedant
find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
I know this work
salma
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
Abhi
If f(x) = x-2 then, f(3) when 5f(x+1) 5((3-2)+1) 5(1+1) 5(2) 10
Augustine
how do they get the third part x = (32)5/4
kinnecy Reply
make 5/4 into a mixed number, make that a decimal, and then multiply 32 by the decimal 5/4 turns out to be
AJ
how
Sheref
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
hmm
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is it a question of log
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I rally confuse this number And equations too I need exactly help
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Commplementary angles
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Sherica
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Nharnhar
A soccer field is a rectangle 130 meters wide and 110 meters long. The coach asks players to run from one corner to the other corner diagonally across. What is that distance, to the nearest tenths place.
Kimberly Reply
Jeannette has $5 and $10 bills in her wallet. The number of fives is three more than six times the number of tens. Let t represent the number of tens. Write an expression for the number of fives.
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What is the expressiin for seven less than four times the number of nickels
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how do you translate this in Algebraic Expressions
linda Reply
why surface tension is zero at critical temperature
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I think if critical temperature denote high temperature then a liquid stats boils that time the water stats to evaporate so some moles of h2o to up and due to high temp the bonding break they have low density so it can be a reason
s.
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
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. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
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Source:  OpenStax, Introduction to mechanical measurements. OpenStax CNX. Oct 18, 2006 Download for free at http://cnx.org/content/col10385/1.1
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