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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

where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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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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