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Environmental Technology Listing
Title of Listing:
IRRIS Series Cameras IRRIS-160ST and IRRIS-256ST
Category:
Characterization Technologies
Subcategory:
*Waste, Soil, All Listings
Media:
Soil, Solid, Leachate, LNAPL
Contaminants:
Petroleum Hydrocarbons, Buried Materials, Temperature
Web Site:
http://www.cinele.com
Email:
TVENABLE@CINELE.COM
Technology Description:

The infrared Radiometric System IRRIS-160ST and IRRIS-256ST is a very high sensitivity handheld IR camera. A temperature difference sensitivity of less than 0.020 degrees C Noise Equivalent Temperature Difference (NETD) is obtained in real time images with Indium Antimonide (InSb) Focal Plane Array (FPA). Minimum Resolvable Temperature Difference (MRTD) seen by the eye in the image has been measured to about 0.005 C. It is packaged with specialized processing electronics to create both real time video images and 12 bit digital information. Image picture resolution available from 160x120 and 256x256 array InSb sizes. The Stirling electrical closed cycle cooler eliminates needs for cryogenics liquids for cooling the detector for full sensitivity. Very nominal temperature differences are obvious in the image to allow the easier, earlier and or later identification of problems. Imaging is from afar and no sampling or contact is involved. Most problems can be seen in both day and night. Temperatures of objects can be measured from -45C to 300 C. Eyepiece configuration allows for easy mobile use and or the images can be displayed on a monitor. Remote control of the video image output is available with RS-422 or the handheld controller. The thermal signal used is in the 3 um to 5 um spectral window of the atmosphere. IRRIS cameras' sensitivity exceeds results obtained with commercially available 8 um to 12 um technology units and exceed their results obtained. IRRIS' advantage over 8 to 12 um systems is increased in high moisture atmospheric conditions, fog and rain.
Performance Status/
Limitations:

Performance Status:

          The IRRIS IR cameras are owned and used by the US Coast Guard in several districts to monitor for oil spills and leaks, illegal bilge dumping, pipeline leaks, thermal pollution of waterways by industry and night time search and rescue and night surveillance operations. The portability of the cameras allows them to be used handheld on foot, from boats, planes, helicopters, and land vehicles without permanent mounting of these. This provides great flexibility and major cost savings compared to traditional IR systems that are permanently mounted to planes and helicopters. Oil spills and clean-up have been monitored in heavy rainy conditions as well as clear weather day and night. Naphtha spills have been seen as clouds over the spill area. This camera was the camera used successfully to help locate people at the Oklahoma City explosion site. This is not meant to be taken as an endorsement by the US Coast Guard; it is a quick summary of some of the ways they have used CE's InSb FPA cameras.

          Limitations:

          The IR thermal image allows easy identification of patterns that are different from their surroundings thermally. Identification of a problem is a subjective judgment by the user. IRRIS cameras cannot identify the chemical material types (in this configuration). Weather and temperature conditions, and the time of day or night can vary the results obtained. Very cold weather (below -10 C), heavy snow in the air on the ground and heavy fog are the weather conditions that will inhibit the results obtained the most. In environmental uses heavy fog may limit practical use to distances of up to about 500 meters (due to signal scattering not signal absorption). IRRIS Cameras can image through heavy rain and high water content in the atmosphere. However, heavy rain can cause cooling of objects to nearly the same temperature and cover all items in the scene with water to create equal emissivities from normally different materials; these phenomena degrade the performance apparent to the user. Objects below -45 C cannot be distinguished from one another, nor can objects over 300 C. Only solids and liquids are measured and imaged, not gasses. For specific chemical imaging see Analytical Detectors description of CE's spectrally filtered units.
Topics
Technologies, Characterization
Additional Topics/Tags/Keywords
Infrared, Temperature, Monitor


Organization:
Cincinnati Electronics Corporation
Address:
7500 Innovation Way
Phone:
DescriptionNumber
City:
Mason
1.
Toll Free (800) 852-5705
State/Province/Territory:
OH
2.
Zip/Postal Code:
45040-9699
3.
Country:
United States
4.
Fax:(513) 573-6290
Branch Locations: