Prototype Development Of A Microcontroller Based Field Optical Density Tester

Daniel R. Cote; L. David LaFleur; Victor E. Cappelli; Robert H. Clayton; Kenneth J. Bingman

doi:10.1117/12.950994

1 May 1989 Prototype Development Of A Microcontroller Based Field Optical Density Tester

Daniel R. Cote, L. David LaFleur, Victor E. Cappelli, Robert H. Clayton, Kenneth J. Bingman

Proceedings Volume 1036, Precision Instrument Design; (1989) https://doi.org/10.1117/12.950994
Event: SPIE Advanced Processing Technologies for Optical and Electronic Devices (colocated wth OPTCON), 1988, Santa Clara, CA, United States

Abstract

A portable spectrometer has been designed that measures the transmission of tank periscopes in the field. The purpose of the instrument is to measure optical density to 4.0 over the range from 380 to 1100nm with lnm resolution. A motorized monochromator scans the desired test band. Data is acquired by silicon photodiodes, amplified by a programmable gain amplifier (PGA) and processed using a 12-bit A/D converter. A chopped input beam removes background signal. Ratio detection between measurement and reference arms compensates for input light intensity variation. Innovations in optical, mechanical and signal processing design are described. The precision of measurements made at various wavelengths and angles of incidence is discussed.

Citation Download Citation

Daniel R. Cote, L. David LaFleur, Victor E. Cappelli, Robert H. Clayton, and Kenneth J. Bingman "Prototype Development Of A Microcontroller Based Field Optical Density Tester", Proc. SPIE 1036, Precision Instrument Design, (1 May 1989); https://doi.org/10.1117/12.950994

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available