Transcript MSc Dissertations Sept 2009

Industry Based Work
MSc Dissertations Sept 2009
EEM118 DISSERTATION TOPICS with Panos Iokim
Panos Iokim will be at the University on Monday 12th October from 1 – 5pm in
room EB.G.29a to discuss possible dissertation projects. If you are interested
in any of his projects, it is highly recommended that you attend.
Panos Ioakim
Project List
1
GPS Based speed profile logger hardware
2
GPS Based speed profile logger Software
3
High Speed, Short Range Contact-less Sub-mm Distance Measurement Device
4
Single Axis True sinusoidal Vibration Platform
5
Performance Analysis of Angular Rate Gyros for Inertial Attitude Estimation
6
USB Controlled Lab Signal Generator
7
A Touch Sensitive Robotic Hand
8
Sun Tracking PV Panel
9
A Digitally Controlled, Precision Motor Speed Controller for line scanners
10
In-line Mains Power Tapping
11
Remote Access Temperature Probe Network
Structure and method
• Diversity of areas within each project
• Each project requires diverse engineering skills to
be mastered. An essential requirement for successful
entry in industry
• Common areas across many projects
• There are many common trends between projects to
encourage the formation of study groups. These
groups are the main driving force of R&D in
industry.
Structure and method
• Interdependencies between projects
• Some projects require direct coexistence to create a
single product. Some are more obvious than others.
Working across discipline boundaries and
establishing the interfaces is one of the most
important aspects in product or system design.
• Real world applications
• All of these projects are “real industry” applications
and should be treated as such.
Structure and method
• Product development approach
• Every project is a product or a part of a product
which by itself can be used stand-alone as one.
Product development methods such as Product
Based Planning, Conformance, packaging and
budgeting are essential skills in industry.
Structure and method
• Have fun doing something interesting and
creative with other colleagues
• Social skills are as important as technical
knowledge in the work place. Forming a social
circle with the work-group and discussing project
issues and problems over coffee, lunch or a casual
evening out will hone essential communication skills
whilst fun.
1
GPS Based speed profile logger hardware
Areas of work
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PIC micro assembler
Digital electronic design and PCB
Electronic design of low power circuits
Product encapsulation and user interface design
GPS base band level work
NEMEA Protocol
1
GPS Based speed profile logger hardware
Abstract
A requirement exists for a portable device to record
speed profiles of experimental vehicles over a short
range of 1 mile. Vehicle’s top speed is about 50mph
and the data sampling should be 1sps equating to a
couple of minutes of data storage.
1
GPS Based speed profile logger hardware
Description
RF solutions GPS
Receiver
PIC18F46J11
GPS
MODULE
RS-232
SATSTATUS LED
RS-232
DEVICE
MICRO
CONTROLLER
ON/OFF
BESPOKE
FIRMWARE
STRT/STP
RAM
CLR
RS-232
REC
READY
2
GPS Based speed profile logger Software
Areas of work
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Visual Basic software design on Win XP
Virtual Instrument and User Interface Design
Bespoke Communication Protocol Development
Hardware interfacing via USB-RS232
Numerical analysis and graphical representation of
data
• Raw data post processing to acquire the useful part
of the data
• NEMEA Protocol
2
GPS Based speed profile logger Software
Abstract
A requirement exists for a PC Based (Host)
Software tool capable of extracting the stored
information from several loggers via a USB to
RS232 link and being able to display it graphically
for comparison. Speed-Time and Time-Distance
profiles (graphs) are required and the ability to store
these for future work. Correct post processing and
interactive numerical analysis of the GPS data in
order to acquire meaningful and accurate results will
be essential.
2
GPS Based speed profile logger Software
Description
USB TO RS-232
CONVERTER & CABLE
NOTEBOOK
HOSTPC
BESPOKE
SOFTWARE
IN WINDOWS
3
High Speed, Short Range Contact-less Submm Distance Measurement Device
Areas of work
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High speed sensor circuit design
Low noise analogue circuit design
Optical sensor calibration methods
Real time signal processing
Analogue to digital conversion
Digital circuit design and ALTERA CPLD Firmware
3
High Speed, Short Range Contact-less Submm Distance Measurement Device
Abstract
A requirement exists for a contact-less distance
measuring sensor with sub-millimetre accuracy able
to operate within the dynamic range of DC to
100Hz. The sensor’s prime configuration should
allow it to produce “real-time” linear analogue
distance data of an oscillating surface at an
amplitude of up to 1cm. A secondary digital output
representing the frequency of oscillation is also
required for closed loop control feedback.
3
High Speed, Short Range Contact-less Submm Distance Measurement Device
Description
IR RX/TX Response
PCB
4
3
2.5
Vout(V)
Reflector
TX
IR Mask
RX
3.5
Vout
2
dv/dd
1/x^2
1.5
1
0.5
0
0
2
4
6
Distance (cm)
8
10
12
4
Single Axis True sinusoidal Vibration
Platform
Areas of work
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Mechanical design
3D SolidWorks CAD
Motor control circuit design
User interface design
PIC Assembler
Digital circuit design
Closed loop control implementation
4
Single Axis True sinusoidal Vibration
Platform
Abstract
A true sinusoidal excitation platform is required
over a single (vertical) axis with minimal lateral
vibration. The platform should be capable of
attaining a frequency range of 0.1Hz to 100Hz at
1Hz increments, selectable by the operator. It should
also provide adjustable amplitude in the range of
1mm to 10mm. Precision bearings and a camshaft
arrangement should provide a smooth action
powered by a geared, closed loop controlled DC
motor.
4
Single Axis True sinusoidal Vibration
Platform
Anti-Rotation
Assembly
Description
DUT Support
Guide Rail
Epoxied
Eyelet
Teflon Runner
with threaded supports
Insulated Terminals
Extruded Square
Aluminium section
BNC DUT
Signal Out
Steel Shaft
Teflon Bearings
BNC IR
Signal Out
Support
Pillars
Motor Mount
Plinth
IR Sensor
circuit
Adjustable Aluminium
Reflector Assembly
IR Offset Adjust
Potentiometer
IR Power in Socket
Spherical
Rod-end Bearings
Cam-shaft with
Adjustable amplitude
5
Performance Analysis of Angular Rate
Gyros for Inertial Attitude Estimation
Areas of work
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Mechanical design
Sensor circuit design
Sensor calibration methods
Data capture and mathematical processing
Low noise techniques
Simulation
5
Performance Analysis of Angular Rate
Gyros for Inertial Attitude Estimation
Abstract
The new generation of MEMS Devices provide a
low cost alternative to linear and angular
accelerometers. Through mathematical processing of
the raw data and filtering, a gyroscope could be
emulated, providing inertial attitude. This research
based study is to evaluate the possibility of such a
device by experimentally deriving values for drift,
baseline noise, mathematical errors and offsets and
design countermeasures in an attempt to extract the
best positional accuracy possible.
5
Performance Analysis of Angular Rate
Gyros for Inertial Attitude Estimation
Description
6.00E-02
4.00E-02
2.00E-02
0.00E+00
-2.00E-01
0.00E+00
-2.00E-02
-4.00E-02
-6.00E-02
-8.00E-02
Data+offset
2.00E-01
4.00E-01
6.00E-01
8.00E-01
1.00E+00
1st Integral*gain
2nd Integral*gain
6
USB Controlled Lab Signal Generator
Areas of work
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Analogue and Digital circuit design
Active filtering and instrument grade design
Visual Basic Win XP software development
Virtual Instrument user interface
Precision Amplifiers
USB-RS232 interfacing
Product enclosure
6
USB Controlled Lab Signal Generator
Abstract
A Laboratory signal generator capable of producing
sine wave and square wave signals of variable
amplitudes of 1V to 12V Pk-Pk with a frequency
range of few Hz to 5MHz is required. The device is
to be a precision lab instrument made cost effective
by utilising DDS IC technology and software Virtual
Instrument User Interface.
6
USB Controlled Lab Signal Generator
Description
Programmable frequency profile No external components
necessary Output frequency up to 25 MHz Pre-programmable
frequency profile minimises number of DSP/µcontroller
writes Sinusoidal/triangular/square wave outputs Automatic
or single pin control of frequency stepping
Burst and listen capability Waveform starts at known phase
Increments at 0° phase or phase continuously Power-down
mode: 20 µA Power supply: 2.3 V to 5.5 V Automotive
temperature range:
−40°C to +125°C 20-lead pb-free TSSOP
7
A Touch Sensitive Robotic Hand
Areas of work
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Mechanical Design
Motor control
In depth sensor design
Analogue and Digital design
Closed loop control implementation
Materials
Data acquisition and raw data processing
PIC Assembler
7
A Touch Sensitive Robotic Hand
Abstract
An intelligent robotic hand is required, able to pick
up and relocate objects of similar size but of
different material strengths and textures without
damaging them. The focus here is on the sensor
design. The “hand” should be able to pick up a solid
piece of aluminium and an egg with equal dexterity
and control as to neither drop the heavier, smoother
load or crash the egg. It should be able to hold an
empty paper cup and keep holding it whilst it is
being filled with water.
7
A Touch Sensitive Robotic Hand
Description
""The
ability of the skin to
acquire and process
information rivals our senses
of sight and hearing."
8
Sun Tracking PV Panel
Areas of work
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Mechanical Design
Motor control
Analogue and Digital design
Closed loop control systems
PIC Assembler
8
Sun Tracking PV Panel
Abstract
Photovoltaic cells exhibit a non-linear voltage
output with regard to the angle of incidence of
incoming light energy. In order to maximise the
efficiency of such panels and take advantage of this
renewable and green energy, a motorised panel is
required, able to track the sun’s position in the sky
and adjust its attitude as to attain maximum energy
output. The electricity required for attitude control
should also come from the panel itself. It must also
overcome obvious problems such as resetting at
sunset!
8
Description
Sun Tracking PV Panel
9
A Digitally Controlled, Precision Motor
Speed Controller for line scanners
Areas of work
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Mechanical Design
Motor control
Analogue and Digital design
Robust closed loop control systems
PIC Assembler
Brush-less motors
9
A Digitally Controlled, Precision Motor
Speed Controller for line scanners
Abstract
Line scanners are precision instruments that
sequentially acquire radiation data, visible or Infra
Red, from moving objects and build a picture over
time. Such scanners utilise constant sampling rates
and therefore any slight irregularity of the rotational
speed of the optics results in faulty pixels. A brushless motor with digital closed loop control is
required, able to attain rotational speeds from 10Hz
to 100Hz with an error of 0.1Hz. Such a device
should be capable of driving optics of different
inertial loads.
9
A Digitally Controlled, Precision Motor
Speed Controller for line scanners
Description
10
In-line Mains Power Tapping
Areas of work
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Analogue design
AC Mains power switching circuits
Capacitive sensor circuit design
Physics level component evaluation and design
True R&D methodology
Materials and sensor technology
10
In-line Mains Power Tapping
Abstract
A device is required to replace an ordinary light
switch with a touch sensitive one. Most touch
sensitive switches on the market either require
batteries, extra wiring or rectify the AC before
supplying the load. Some “Steal” part of the AC
cycle to self power. An innovative and simple way
of tapping into the mains power is required when the
switch is either on or off. Adequate power should be
obtained, enough to power the sensor and switching
circuit when the load ranges between 60 and 300W
10
Description
In-line Mains Power Tapping
11
Remote Access Temperature Probe
Network
Areas of work
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Analogue and Digital design
PIC Assembler
RF Communications
Communication Protocol Design
Visual Basic software design on Win XP
Product encapsulation and environmental protection
11
Remote Access Temperature Probe
Network
Abstract
Smart buildings require accurate measurement and
logging of environmental variables that effect the
structure such as temperature and humidity. Due to
the high number of these sensors required for an
average size house and their location, a wireless
sensor solution is required. The wireless sensors
should be accessed via a central hub able to
remotely access and store the data against a unique
code representing a type and location of sensor. This
project will concentrate on measuring temperature
within 1°C or better.
11
Remote Access Temperature Probe
Network
Description
Industry Based Work
MSc Dissertations Sept 2009
Please collect leaflet on these projects on your way out
Panos Ioakim