30 September 2004 Fieldable Fourier transform spectrometer
Author Affiliations +
Abstract
The infrared sensors group at the Pacific Northwest National Laboratory (PNNL) is focused on the science and technology of remote and in-situ chemical sensors for detecting proliferation and countering terrorism. To support these vital missions, PNNL is developing frequency-modulation techniques for remote probing over long optical paths by means of differential-absorption light detecting and ranging (LIDAR). This technique can easily monitor large areas, or volumes, that could only be accomplished with a large network of point sensors. Recently, PNNL began development of a rugged frequency-modulation differential-abosrption LIDAR (FM-DIAL) system to conduct field experiments. To provide environmentla protection for the system and facilitate field deployments and operations, a large, well insulated, temperature controlled trailer was specified and acquired. The trailer was outfitted with a shock-mounted optical bench, an electronics rack, a liquid nitrogen Dewar, and a power generator. A computer-controlled gimbal-mounted mirror was added to allow the telescope beam to be accurately pointed in both the vertical and horizontal plane. This turned out to be the most complicated addition, and is described in detail. This paper provides an overview of the FM-DIAL system and illustrates innovative solutions developed to overcome several alignment and stability issues encountered in the field.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Brian K. Hatchell, Brian K. Hatchell, Warren W. Harper, Warren W. Harper, John F. Schultz, John F. Schultz, "Fieldable Fourier transform spectrometer", Proc. SPIE 5528, Space Systems Engineering and Optical Alignment Mechanisms, (30 September 2004); doi: 10.1117/12.562576; https://doi.org/10.1117/12.562576
PROCEEDINGS
11 PAGES


SHARE
RELATED CONTENT

Lightweight CFRC telescope for UAV lidar
Proceedings of SPIE (September 04 2000)
Compact dual wavelength 3.30 to 3.47-um DIAL lidar
Proceedings of SPIE (July 27 2000)
Design and analysis of a spaceborne lidar telescope
Proceedings of SPIE (September 14 1995)
Compact version of the Atmospheric Lidar Instrument (ATLID)
Proceedings of SPIE (December 08 1994)
Mechanical design of the Crosstrack Infrared Sounder (CrIS)
Proceedings of SPIE (February 07 2002)

Back to Top