UV oil deposit detection Curtis Christiansen Desiree Cerretani Courtesy of Nation Geographic Pictures 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

Initial Penetrometer to Auger Design1

Initial Penetrometer to Auger Design 2

End of Probe Exploded View (Final Design)

Final Penetrometer to Auger Design

Penetrometer Cone / Sapphire window Sapphire Window Penetrometer Nose Penetrometer Core Length: 8” Inside Dia: ”

Sapphire Window Length: 0.781” Made of Sapphire Durable Scratch Resistant High Transmissivity

Electrical Concept Drawing Android Tablet PC Bluetooth Micro Battery Pack Color Sensor Components are underground Signals being sent In and out Fossil Fuels To be detected All Components Below This Line are Inside the Probe The Component Above This Line is on the Auger

Electrical Schematic

Color Board Battery Design  LI-ION Rechargeable Battery 7.4V 4400mAh Slightly 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”

Color Board and LED Testing

Bluetooth Design  RN-41 Class 1, 2.0 EDR Class 1 high power amplifier On Board ceramic RF chip antenna Maximum of 100m range Auto discovery, requires no software configuration Operating temperature range -40 to +85°C

Bluetooth Testing

Software State Diagram ON/OFF STANDBY READ SENSOR 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 on Pressing S – Stops all data transmission and turns off LEDs

Software for Color Board (sample)

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 – Desiree Batteries - Desiree Bluetooth Technology - Curtis User Interfacing – Curtis  CADD- Curtis  Machining – Done by ARA  Main Contact with ARA – Desiree  Parts Ordering – Desiree  Wiring Electronics - Curtis

Current Time Line

Future Changes/improvements  Sensor. Change LEDs from white to UV  Smaller Circuit design  Low profile connectors for color board

Budget Budget Sheet ItemmanufacturerCost Sapphire Window $10,000 Auger BladeJiffy Earth Augers$290 Attacker II Auger DriveIcegator$590 Lithium Ion BatteryBatteryJunction.com$42.50 Color BoardARA$431 Nose ConeARA$95 ConnectorARA$105 Sapphire window tubeARA$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)

Questions?