UV oil deposit detection Curtis Christiansen Desiree Cerretani Courtesy of Nation Geographic Pictures of the Gulf Oil Spill.
Post on 19-Dec-2015
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UV oil deposit detection
Curtis ChristiansenDesiree Cerretani
Courtesy of Nation GeographicPictures of the Gulf Oil Spill
The Problem in the Gulf
Due to the BP spill they test to find out where the oil is lying by digging trenches that span beaches, this is particularly inefficient and time
consuming.
An Interesting Surface Technology
Low Voltage (ultra violet) UV series oil fluorescing spotlight is a new product that is used to detect fossil fuels that have only been
spilled on surfaces, cannot detect anything below ground.
ARA’s Specialties•Uses a very large truck with approximately 30 tons of pushing power•For every two feet pushed a new section of tube is screwed on by hand•Very expensive•Prone to breaking if pushed too hard and too deep•If broken in great depths there is no retrieving the cone and the process would have to be restarted•Unrealistic to use current setup for small depths or small projects•Current design is not portable
Problem Statement We were given a task by Applied
Research Associates to take their existing design for their “Vertek CPT push systems, cone penetrometers and fuel fluorescence detectors” and make it a portable system easily maneuvered by one person.
The system should go a maximum depth of 4ft and use Bluetooth interfacing to communicate with android technology.
Solution Statement Our system will consist
of an auger with our adapter design connecting it to the penetrometer and cone which houses the sensor.
Most augers only spin in one direction, our will need to have reverse for safety and easy extraction from the ground.
Solution Statement Our design will need to
send data from the UV color sensor to a PC
The portable device will also have a rechargeable and easily interchangeable battery
Our design has to incorporate ARA’s sapphire smart window
ARA’s Requests Proximity Sensor that will report back to the
Android Tablet PC via Bluetooth Battery life should last 8 hours and be
Lithium ion or polymer Would like a rechargeable system, but would
need to be serviceable by end user The hole from the auger should be as small
as possible Color Board and Sapphire Window to see a
fluorescence range of 550nm – 630nm
System Overview
Auger Drive
Auger Blade
Sapphire Window /Penetrometer Core
Nose Cone
Android
All Components Beyond This Point Can be Underground
All Components Beyond This Point Will Most Definitely be Underground
Electrical Component Box
Penetrometer Cone / Sapphire window
Sapphire Window Penetrometer Nose
Penetrometer Core
Length: 8”Inside Dia: 0.6563”
Electrical Concept Drawing
AndroidTablet PC
Bluetooth Micro Battery Pack
Color Sensor
Components are
underground
Signals being sent In and out
Fossil FuelsTo be detected
All Components Below This Line are Inside the Probe
The Component Above This Line is on the Auger
Color Board Battery Design LI-ION Rechargeable Battery
7.4V4400mAhSlightly larger than a D size flashlight battery$42.50
Color Board
White LED’s for Prototyping
Microprocessor that communicates with the Bluetooth
Wiring harness that is connected to the Bluetooth
Length : 1.5” Dia : 0.5”
Bluetooth Design
RN-41 Class 1, 2.0 EDRClass 1 high power amplifier On Board ceramic RF chip antennaMaximum of 100m rangeAuto discovery, requires no software
configurationOperating temperature range -40 to +85°C
Software State Diagram
ON/OFF
STANDBY
READSENSOR
STATE NAME
System On
Press == S
Press == R
System Off
READ SENSOR State Includes:•Color Sensor On•LED On•Diodes On•Transmits Data
Pressing R – Turns sensor and LEDs onPressing S – Stops all data transmission and turns off LEDs
Power Saving Battery = limited amount of power
If Sensor and LEDs are on full time then battery lasts 36 hours○ Battery = 4400mAh○ Entire System uses approx. 120 mA○ (4400mAh)/(120mA) = 36.6 hours
If Sensor and LEDs are pulsed then battery lasts approximately 52 hours○ Battery = 4400mAh○ Entire System uses approx. 67mA (micro and Bluetooth)
+ (53mA sensor and LEDS x 1/3 (Time on))○ (4400mAh)/( 67mA +(53 x 1/3)) = 52 hours
Responsibilities Research
Augers – DesireeBatteries - Desiree Bluetooth Technology - CurtisUser Interfacing – Curtis
CADD- Curtis Machining – Done by ARA Main Contact with ARA – Desiree Parts Ordering – Desiree Wiring Electronics - Curtis
Future Changes/improvements
Sensor. Change LEDs from white to UV
Smaller Circuit design
Low profile connectors for color board
BudgetBudget Sheet
Item manufacturer Cost
Sapphire Window $10,000
Auger Blade Jiffy Earth Augers $290
Attacker II Auger Drive Icegator $590
Lithium Ion Battery BatteryJunction.com $42.50
Color Board ARA $431
Nose Cone ARA $95
Connector ARA $105
Sapphire window tube ARA $337
CADD Design $60 / hour $1,200
Total $13,091
Thank you
Shane Clarke (ARA) Ken Mcintosh (ARA) Tyson Burrell (ARA) Andre St.Denis (VTC) Carl Wolf (VTC) Bob Royce (VTC)
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