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

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: 0.6563”

Sapphire Window

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

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

Electrical Schematic

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”

Color Board and LED Testing

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

Bluetooth Testing

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

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 – DesireeBatteries - Desiree Bluetooth Technology - CurtisUser 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

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)

Questions?