NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 6: Determining Drag Coefficients
1
OBJECTIVES:
The primary goals of this experiment are:
1. To choose where to place measurement devices in or
Introduction to LabView
Electrical Instruments
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Sit with your lab group!
Overview
LabView (Chapters 5 and 6)
Multimeters and oscilloscopes (Chapter 7)
How they work
What we can expect out o
Introduction
Dr. Bridget Smyser
ME 4505
Measurements and
Grab 4 handouts try to find your lab group members and introduce yourself!
Analysis
Fall 2012
Who, What, and Where
Dr. Bridget Smyser Lectures meet:
Responsible for lectures
Office: 334SN, x5142
La
Instrument Characteristics
Dr. Bridget Smyser
ME 4505
Measurements and
Analysis
Where were headed
Types of instruments
Accuracy and Precision
Characteristics of instruments
Common Errors
Why we need to calibrate
What does all this mean?
Highly Accurate,
Flow Measurement
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Special Note for Lab 7!
Will take place in 057 RI
There will not be lecture on Wednesday of
that week
Each group gets 1 hour with the Pelton Wheel
You will have goals, you
Displacement, Velocity,
Acceleration, and Load
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Overview
A few measurements we havent figured out
yet
Need to know how far and how fast things
move
Robotics, vehicles, machinery all of these
Calibration
Dr. Bridget Smyser
ME 4505
Measurements and
Analysis
Opening discussion form groups of 34
How do you think you would calibrate a
dial type pressure gauge?
How do you think you would calibrate a
thermocouple?
Write your answers down, along wit
NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 7: Fluid Flow Measurement
1
OBJECTIVES:
The primary goals of this experiment are:
1. To use a flow meter to determine the flow rate and veloci
NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 5: First Order Systems with Varying Input/Heat Transfer
1
OBJECTIVES:
The primary goals of this experiment are:
1. To compare theoretical one-
NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 4: Mechanical Power Measurement
1
OBJECTIVES:
The primary goals of this experiment are:
1. To develop a power curve for a generator, relating
NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 3: Strain Measurement
1
OBJECTIVES:
The primary goals of this experiment are:
1. To use strain gauges to measure strain in a simply supported
NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 2: Temperature Measurement
1
OBJECTIVES:
The primary goals of this experiment are:
1. To determine to a high degree of accuracy the temperatur
NORTHEASTERN UNIVERSITY
DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING
ME 4506-MEASUREMENT AND ANALYSIS
Lab 1: Pressure Measurement
1
OBJECTIVES:
The primary goals of this experiment are:
1. To use laboratory standards to calibrate various pressure m
Homework Assignment 7
Due date: 10/31/2012
Pre-Lab Activities for Lab 7 Flow Measurement
Note: To answer some of these questions, you may need to consult a fluid mechanics text, the
course notes, or the lab handout. The assignment is worth 20 points total
Homework Assignment 6
Due date: 10/24/2012
Pre-Lab Activities for Lab 6 Wind Tunnel Testing
Note: To answer some of these questions, you may need to consult a fluid mechanics text or the
lab handout. The assignment is worth 20 points total.
1. If I measur
Homework Assignment 5
Due date: 10/17/2012
Pre-Lab Activities for Lab 5 Heat Transfer
Note: To answer some of these questions, you may need to consult a heat transfer text or the lab
handout. The assignment is worth 20 points total.
1. Estimate the time r
Homework Assignment 4
Due date: 10/10/2012
Pre-Lab Activities for Lab 4 Mechanical Power Measurement
Note: To answer some of these questions, you will to read the lab handout. The assignment is
worth 20 points total.
1. During the lab a bike wheel of diam
Homework Assignment 3
Due date: 9/26/2012
Pre-Lab Activities for Lab 3 Strain Measurement
Note: To answer some of these questions, you will need the dimensions of the beam, as well as
some information about beam bending theory. This and other information
Homework Assignment 2
Due date: 9/19/2012
Pre-Lab Activities for Lab 2 Temperature Measurement
Note: You will need to read the lab handout to answer some of these questions. The assignment is
worth 20 points total.
The student groups will be able to choos
Homework Assignment 1
Due date: 9/12/2012
Pre-Lab Activities for Lab 1 Pressure Measurement
Note: You will need to read the lab handout to answer some of these questions. The assignment is
worth 20 points total.
1. Explain in your own words the difference
First and Second Order
System Response
Dr. Bridget Smyser
ME 4505
Measurements and
Analysis
Why are we covering this now?
Information in chapter 2 (but a lot in the
slides as well)
Weve been assuming static inputs and
static outputs
Time needs to become
Design of Experiments
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Opening discussion
The company I used to work for wanted to
recover value from solid UF4 by the following
chemistry:
UF4 (s) + SiO2 (s) = SiF4 (g) + UO2 (s)
What sort o
Angstroms to Light Years:
Measuring Dimensions
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Overview
Lots of people interested in/need to measure
dimensions
Distance between stars
Distance for golf drives and home runs
Measuring parts t
Trig Cheat Sheet
Definition of the Trig Functions
Right triangle definition For this definition we assume that 0 < <
2
or 0 < < 90 .
Unit circle definition For this definition is any angle.
y
( x, y )
hypotenuse opposite
y 1 x
x
adjacent sin = opposite hy
Strain Measurement
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2011
Outline for this topic
Review of stress-strain concepts
Piezoresistance
Wheatstone bridges and other necessary circuit
concepts
Temperature compensation
Strain gauge er
Measurement Signal
Transmission
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Spring 2012
Sit with your lab group!
Overview
Sometimes we need to measure stuff at a
distance
Lots of things put out voltage but
Voltage can get lost in transit
Well
Data Analysis Part 2
Dr. Bridget Smyser
ME 4505 Measurements and Analysis
Fall 2012
Comparing Multiple Data Sets
What if we want to compare 2 distinct
samples, with unequal variances?
Example: MIT students vs. NU students
Get new equations for t and v: