Issue
152 March 2003
2-D
Optical Position Sensor
by
Roger Johnson & Chris Lentz
SOURCES
& PDF
Download
the PDF of this article.
Roger Johnson
is a physicist and senior electro-optical engineer working
in the Seattle area. He earned degrees from The University
of Washington and The University of Illinois at Champaign-Urbana,
and has been designing precision, non-contact, optical
measurement systems for 17 years. His interests include
miniature optical systems, precision motion control,
and instrument design. You may reach him at roger@aculux.com.
Chris Lentz
is a Washington-based senior electronics designer. For
the past 17 years, Chris has been developing hardware
and software for electro-optic and electro-mechanical
systems. His interests include miniature sensors, tinkering,
and supporting science teachers by designing and demonstrating
electronic instruments for students. You may reach Chris
at chrisl@owt.com.
PROJECT
FILES
To download
the code, go to ftp.circuitcellar.com/pub/Circuit_Cellar/2003/152/.
SOURCES
PCB Set
with S5991-01 PSD
Aculux
(425) 378-0567
www.aculux.com
PSDs
Hamamatsu Corp.
(908) 231-0960
www.usa.hamamatsu.com
LT1490
Op-amps
Linear Technology
Corp.
(408) 432-1900
www.linear.com
PIC16F873
Microcontroller
Microchip Technology,
Inc.
(480) 786-7200
www.microchip.com
