David Keng
davidkeng777@hotmail.com
Education
Bio-Medical Engineering. M.S. Polytechnic University, In progress
Concentration: Instrumentation
Microfluidic system implementation for virus detection
applications
Electrical Engineering. B.S. Polytechnic University, 2005
Concentration: Feedback control
Feedback
system for photonic atom using lock-in technique
Relevant Experience
MP3L, 2002 to
present, research assistant and MS student
NASA G.R.C., 2004 summer, visiting student, technology
transfer
System
Developed (June, 2005 -
Jan, 2007)
I designed, prototyped, machined, programmed, and maintained the following
system relevant to the published work.
Automatic microsphere maker (Aug,
2005 - Sep, 2005)
Produce
micron-precision microsphere
10 micron
tolerance, higher tolerance not necessary
Over 600 microsphere have been manufactured so far using this system
PIC
microcontroller based embedded system
Long term
storage solution
Automatic asymmetric fiber puller (Oct, 2005 - Dec, 2005)
Produce
robust, low attenuation, and inexpensive micron-precision waveguide
Real time
CCD video monitoring for quality control
Integrated
fiber micron-precision anchoring mechanism for applications
Over 150
waveguides have been manufactured so far using this system
Parallex microcontroller based embedded system
Long term
storage solution
Photonic atom microfluidic chips
process (Jan, 2006 - Apr, 2006)
Produce
disposable micron-precision single layer microfluidic
devices
Master and
molding based technique using bio-compatible polymers
8 hours
turn-around time from CAD designing to final product
Over 30
designs, and over 200 chips have been manufactured so far using this process
Photonic atom microfluidic sensing
system for bio-molecule studies (June, 2005 - Sept, 2006)
Low noise
platform for various bio-molecule detection
Real time
data acquisition, signal processing, feedback control, data logging, and result
analyzing
LabVIEW full hardware control and graphic user interface
sub pico-meter optical measurement precision
Others
In progress,
not yet published
Sub-system
developed (June, 2005 -
Jan., 2007)
I designed, prototyped, machined, programmed, and maintained the following
sub-system relavent to the published or lab work.
Automatic Static Distributed Feedback Laser characterization
system (Aug, 2005)
Identify DFB
laser characteristics
LabVIEW controlled ILX laser diode controller, and
Michelson Interferometer via USB/GPIB
Measures DFB
output wavelength / current, temperature relationship
pico-meter precision
Automatic microsphere size
measurement (Apr, 2006)
Micron-precision quality control for the automatic microsphere
maker
Custom
designed microscope fitted with USB webcam
LabVIEW imaging process system automatically identify and
measure the size of the microsphere
Programmable syringe pump system (May, 2006)
Custom
modified syringe pumps
Custom
tubing and valve work for parallel sample preparation
LabVIEW controlled parallel port direct stepper motor
control
Programmable
pump control with graphic user interface
Automatic report system (June, 2006)
Automatic
analyzing the experimental data and generate PDF format report for
printing
Automatic Dynamic DFB laser characterization system (Nov,
2006 - Present)
Identify DFB
laser characteristics in real time
sub pico-meter precision
Others
The new MP3L
web page, www.mp3l.org (Oct 2005 - Present)
In progress,
not yet published
Technical
Skills
Instrumentation
Electronics
Feedback
control
Embedded
system, PIC microcontroller
Electromechanical devices design and prototyping
National
Instrument DAQ Card
System
automation
Various
electronics measurement system
Knowledge of
various manufacturing process
Optical
Distributed
Feedback Laser application
Single mode
optical fiber devices
Various
optical measurement system
Mechanical
CNC
Milling
machine
Drill press
Lathe
Knowledge of
various manufacturing process
Software
LabVIEW v6.1 - 5 years
Real time
DAQ
GPIB,
parallel, serial port interfacing
Signal
processing
Feedback
control
Imaging
processing
ASP 2.0 - 1 year
Web based
guest book
Web based
server side automatic email system
Web based
server side file uploading, handling, and re-editable tagging system
BobCAD v2.0 - 1 year
CAD Design
CNC
programming, G-code generation
Other Skills
Language
Chinese