p14372 actively stabilized hand-held laser pointer
DESCRIPTION
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 PresentationTRANSCRIPT
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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
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Agenda
BackgroundSystem Analysis Concept Development Detailed Risk AssessmentProject ScheduleTest PlanChallengesAction Items
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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
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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
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Stakeholders
New Scale Technologies, Victor, NY Dave Henderson, Owner Daniele Piazza, R&D
RIT & MSD
MSD Group
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Needs and Requirements
Customer Needs
Engineering Requirements
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House of Quality
Top Concerns:1. Amp Reduction2. Response Time
3. NST Laser Steering
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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
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Frequency Range Testing
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Frequency Range Testing
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Frequency Range Testing
Arm Extended, Unfiltered
Arm Extended, Filtered
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Test Bench Ideas
Requirements:• Frequency: 1-20 Hz• Amplitude: +/- 2 degrees
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Patent Results
US 7553048 B2 Uses a gimbal (13) and magnet (80)
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Patent Results
US 7380722 B2 Uses 2 accelerometers and a mirror
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Patent Results
US 8436908 B2 Uses a stabilizer and actuators
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Patent Results
US 20130077945 A1 Uses 3 actuators and a gyroscope
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Current Project Schedule
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FUNCTIONAL DECOMPOSITION SYSTEM ARCHITECTURE
System Analysis
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Functional Decomposition
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System Architecture
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MORPHOLOGICAL ANALYSIS CONCEPT ALTERNATIVES
PUGH MATRIX CONCEPT SELECTION
SYSTEM ARCHITECTURE
Concept Development
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Morphological Analysis
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Morphological Analysis
The driving decision currently is digital versus analog.
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Concept 1 Concept 2
BatteryGyroscopeAnalog LPFHardware
IntegratorHardwareServo ModeNST Module
Battery GyroscopeAnalog LPFHardware
IntegratorSoftwareDigital USBNST Module
Concept Alternatives
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Concept 3 Concept 4
BatteryGyroscopeDigital LPFSoftware IntegratorSoftware Digital USBNST Module
BatteryAccelerometerDigital LPFSoftware IntegratorSoftware Digital USBNST Module
Concept Alternatives
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Concept Selection: Pugh Matrix1st Iteration
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Concept Selection: Pugh Matrix2nd Iteration
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System Architecture
Battery
Gyroscope
Low Pass Filter Integrator
Scaled Inversion
Servo/USB (I2C)
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Detailed Risk Assessment
Top Concerns:1. Battery failure
2. Poor sensor accuracy3. Poor data processing
4. Send wrong control signal to NST module
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Project Schedule: Next 3 Weeks
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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
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Challenges
Control system design Response time, accuracy
Reached out to NST for input on analog versus digital Still waiting for a response
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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
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Any Questions?
Thank You.
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References
Benchmarking Articles: Measurement Method for Image Stabilizing Systems
by Golik and Wueller Image Stabilization Technology Overview by Sachs,
Nasiri and Goehl