ME 410 MECHANICAL ENGINEERING
SYSTEMS LABORATORY
FUNDAMENTAL CONCEPTS IN
MEASUREMENT & EXPERIMENTATION
What is Measurement?
In general, it is the acquisition of information.
Classification of information leads to two different
types of measurements:
Stru
FINAL YEAR DESIGN PROJECTS OF MECHANICAL ENGINEERING
2012/2013
Title: Development of Low-Cost Kite for Airborne Wind Turbines
Group size: 4 students
Supervisor: Prof. Francesco Ciucci (email: mefrank@ust.hk)
General Description:
Over 65% of the electrical
ME 410 MECHANICAL ENGINEERING
SYSTEMS LABORATORY
Binomial Distribution:
P( x ) =
n!
p x (1 p)n x
x ! (n x )!
x
P(x) is the probability of obtaining x successes in n
independent trials of a discrete event for which p
and 1-p are respective probabilities of
ME 410 MECHANICAL ENGINEERING
SYSTEMS LABORATORY
REGRESSION ANALYSIS
Regression problem deals with the relationship
between the frequency distribution of one (dependent)
variable and another (independent) variable(s) which is
(are) held fixed at each of s
ME 410 MECHANICAL ENGINEERING
SYSTEMS LABORATORY
STATISTICAL TREATMENT OF
EXPERIMENTAL DATA
Discrete Frequency Distributions:
Assume that a total of n=10 measurements, xi
(i=1,10) are made as:
x1
x2
x3
x4
x5
x6
x7
x8
x9
x10
14 16 13 19 18 14 14 15 18
15
N
ME 410 MECHANICAL ENGINEERING
SYSTEMS LABORATORY
PRESENTATION OF DATA
The presentation of numerical findings of an
experiment is as important as the conduct of the
tests. Because all conclusions to be drawn will be
based on this information.
There exist t
ME 410 MECHANICAL ENGINEERING
SYSTEMS LABORATORY
UNCERTAINTY ANALYSIS
Significant Figures:
The number of significant figures used in expressing
the results of a measurement is an indication of the
accuracy of that measurement.
For example, if a mass is sp
ME 410 MECHANICAL ENGINEERING
SYSTEMS LABORATORY
FUNDAMENTAL CONCEPTS IN
MEASUREMENT & EXPERIMENTATION
(continued)
Measurement Errors and Uncertainty:
The Error in a measurement is the difference
between the
Measured Value
and the
True Value
of the Measur
ME 410 MECHANICAL ENGINEERING
SYSTEMS LABORATORY
FUNDAMENTAL CONCEPTS IN
MEASUREMENT & EXPERIMENTATION
(continued)
How to Measure?
By means of special sensing devices often called
Transducers
or
Sensors
instead of using human senses which can be very
keen
Contents
1. DESCRIPTION OF THE COMPANY.3
1.1.
Company Name.3
1.2. Company Location.3
1.3. Organizational Structure.3
1.4. Number and Duties of Engineers and Other Staff Employed.3
1.5. Main Area of Business.4
1.6. History of the Company.5
2. INTRO