New York City College
of Technology
Department of Electrical and
Telecommunications Engineering
Technology
EET 3120-E260[35142]
Experiment #1
Introduction to Lab VIEW and NIELVIS II
Student
Professor.
David R. Perez Ramos
Viviana Vladutescu
Team members
Damian Robinson
Shawn Clarke
February 05, 2015
Page 1
Contents
Introduction: ................................................................................................................................................. 3
Theoretical Background ................................................................................................................................ 3
Procedure:..................................................................................................................................................... 3
Analysis: ..................................................................................................................................................... 4,5
Calculations: .................................................................................................................................................. 6
Conclusion: .................................................................................................................................................... 7
References: ................................................................................................................................................... 8
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Introduction:
In this experiment, we will start learning how to use the NI ELVIS II and Lab VIEW software.
The Lab VIEW is used to develop refined measurement, test, and control systems using
graphical icons and wires that resemble a flowchart. The National Instruments Educational
Laboratory Virtual Instrumentation Suite (NI ELVIS II) is an instrument used in electronic
laboratories which has, the most commonly used instruments in a single, compact form factor
designed for education such as function generator, digital multimeter, oscilloscope, etc. With this
instruments inserted on this device we can complete a lot of work such as measurements of
certain circuits parameters and its components.
Theoretical Background
In this experiment we will analyze the calculations inputted into the graph of Lab VIEW
program. By creating and placing numeric controls and numeric indicators which are functions in
this Lab VIEW program, we can make a lot of types of mathematical equation. In this
experiment we will focus on first-degree equation. First-degree equations are also known as
linear equations.
Example: 𝑎 ∗ 𝑥 + 𝑏 = 0. Where a and b are the coefficients of the equation and X is the
unknown.
Solving for X: 𝑋 =
−𝑏
𝑎
We will use these approaches in the program to see how easy Lab VIEW solves these types of
equations in a very short time.
Procedure:
In this lab we will focus on the software Lab VIEW. We will learn how to use basics functions of
the software to perform mathematical operations using the tools of Lab VIEW. The purpose of
this lab is to show how easy is to program in Lab VIEW. We will use simple arithmetical
operations to solve first-degree equations.
Page 3
Analysis:
Image#1 – Front Panel
Here we started building our first Lab VIEW VI. This panel allows us to input values for the
variables that we inserted to solve first – degree equation. Once we insert variables and assign
values to them, we need to open the block diagram window to see how to software solve the
equation using numeric indicators and numeric controls.
Page 4
Image#2- Block Diagram
This is the block diagram where the operations of the equations are displayed. Here we used
numeric control and numeric indicators functions to represent the equation we used numeric
control and numeric indicators functions to represent the equation we used numeric control and
numeric indicators functions to represent the equation: 𝑎 =
2[𝑥−(𝑥𝑜+𝑣𝑜𝑇1)]
𝑇^2
in graphical form.
When we run the program with all the values of the variables inserted the Lab VIEW front panel
and block diagram compute the equation a give you the results.
Page 5
Calculations:
1. Modify the application to study the uniformly accelerated linear motion using equation
(1-5) which follows:
𝑋 = 𝑋𝑜 + 𝑉𝑜𝑇1 + 1/2𝑎𝑇 2
𝑎=
Solving for a:
2[𝑥−(𝑥𝑜+𝑣𝑜𝑇1)]
𝑇^2
- equation used on Block Diagram
Plugging the values in the equation we get:
𝑎=
1[1−(2+2𝑥2)]
1
= -5
Note: The value of number 2 in the equation was changed to 1.
Graphical representation of
the equation
Image #2 from page 5
2. Adapt the application to implement Equation (1-4) to find the necessary time, T1.
X1= VoT1+Xo
VoT1+Xo-X1 = 0
aT1+b=0
T1=
−𝑏
𝑎
= T1=
−1
2
= -0.5
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Conclusion:
This lab was very interesting because we learned how this Lab VIEW software can solve
mathematical operations in a very easy way. After we created our equation in the Lab
VIEW it just took milliseconds for the computer to compute the answer in this operation.
The Lab VIEW has so many tools to use to solve many types of problems such as this
equation that we did on this lab. We also could see how the Lab View does these
problems in a graphical point of view. This makes it easy to understand how the Lab
VIEW process all the information inputted by the user. The software computes every
single operation in seconds, making math problems in electronic circuits easy to solve for
students, technician and engineers. This will be a very fun and interesting program to use
when start measuring circuits in future classes.
Page 7
References:
Laboratory Manual EET 3120 (Spring 2015) . by Prof. Viviana Vladutescu
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