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P14372 Actively Stabilized Hand-Held Laser Pointer. Kaitlin Peranski : IE, project manager Jeremy berke : ee , scribe/lead software Chris caporale : Ee , lead hardware Spencer Wasilewski : ME, modeling/machinist Kyle Jensen: ME, NST Module Expert Kyle lasher: ME, test bench designer. - PowerPoint PPT Presentation
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KAITLIN PERANSKI: IE , PROJECT MANAGERJEREMY BERKE: EE, SCRIBE/LEAD SOFTWARE
CHRIS CAPORALE: EE , LEAD HARDWARESPENCER WASILEWSKI: ME, MODELING/MACHINIST
KYLE JENSEN: ME, NST MODULE EXPERTKYLE LASHER: ME, TEST BENCH DESIGNER
P14372Actively Stabilized Hand-Held
Laser Pointer
Agenda
BackgroundSystem Analysis Concept Development Detailed Risk AssessmentProject ScheduleTest PlanChallengesAction Items
P R O B L E M S TAT E M E N T S TA K E H O L D E R S
C U S T O M E R N E E D S E N G I N E E R I N G R E Q U I R E M E N T S
H O U S E O F Q UA L I T Y B E N C H M A R K I N G R E S U LT S
C U R R E N T P R O J E C T S C H E D U L E
Background
Problem Statement
• Current State: • Module from NST that can steer a laser beam• Lacks the ability to detect and reduce unwanted
vibrations• Future State:• System to sense and interpret vibrations• Output to NST Module for corrective action
• Goals:• Handheld, self-contained and safe design
• Constraints:• Operating temperature, package size
Stakeholders
New Scale Technologies, Victor, NY Dave Henderson, Owner Daniele Piazza, R&D
RIT & MSD
MSD Group
Needs and Requirements
Customer Needs
Engineering Requirements
House of Quality
Top Concerns:1. Amp Reduction2. Response Time
3. NST Laser Steering
Benchmarking Results
Comparison of Gyroscopes and Accelerometers Gyroscope: output given in rad/sec; measures roll, yaw
and pitch; possible vendor- InvenSense IDG- 1000 Accelerometer: cannot sense yaw directly; requires
more computationTarget Frequency Range: 1-20 Hz
Round 1 testing confirmed range
Frequency Range Testing
Frequency Range Testing
Frequency Range Testing
Arm Extended, Unfiltered
Arm Extended, Filtered
Test Bench Ideas
Requirements:• Frequency: 1-20 Hz• Amplitude: +/- 2 degrees
Patent Results
US 7553048 B2 Uses a gimbal (13) and magnet (80)
Patent Results
US 7380722 B2 Uses 2 accelerometers and a mirror
Patent Results
US 8436908 B2 Uses a stabilizer and actuators
Patent Results
US 20130077945 A1 Uses 3 actuators and a gyroscope
Current Project Schedule
FUNCTIONAL DECOMPOSITION SYSTEM ARCHITECTURE
System Analysis
Functional Decomposition
System Architecture
MORPHOLOGICAL ANALYSIS CONCEPT ALTERNATIVES
PUGH MATRIX CONCEPT SELECTION
SYSTEM ARCHITECTURE
Concept Development
Morphological Analysis
Morphological Analysis
The driving decision currently is digital versus analog.
Concept 1 Concept 2
BatteryGyroscopeAnalog LPFHardware
IntegratorHardwareServo ModeNST Module
Battery GyroscopeAnalog LPFHardware
IntegratorSoftwareDigital USBNST Module
Concept Alternatives
Concept 3 Concept 4
BatteryGyroscopeDigital LPFSoftware IntegratorSoftware Digital USBNST Module
BatteryAccelerometerDigital LPFSoftware IntegratorSoftware Digital USBNST Module
Concept Alternatives
Concept Selection: Pugh Matrix1st Iteration
Concept Selection: Pugh Matrix2nd Iteration
System Architecture
Battery
Gyroscope
Low Pass Filter Integrator
Scaled Inversion
Servo/USB (I2C)
Detailed Risk Assessment
Top Concerns:1. Battery failure
2. Poor sensor accuracy3. Poor data processing
4. Send wrong control signal to NST module
Project Schedule: Next 3 Weeks
Test Plan
Gyroscope Accuracy, output scaling
Filter Design Transfer function
Integrator Design Accuracy, response time, noise
Test bench Functionality, calibrate frequency
Algorithm Vibration reduction capacity
Challenges
Control system design Response time, accuracy
Reached out to NST for input on analog versus digital Still waiting for a response
Action Items
Update NST on progressRefine test bench design
1 versus 2 axisFuture Benchmarking
Feedback system/loop: analog circuit in some binocular systems
Components: gyroscope, battery, processor
Any Questions?
Thank You.
References
Benchmarking Articles: Measurement Method for Image Stabilizing Systems
by Golik and Wueller Image Stabilization Technology Overview by Sachs,
Nasiri and Goehl
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