Project Description
GAS DETECTION SENSOR Model # 66265A30000 |
The Gas Detection Sensor (GDS) is an aircraft/helicopter mountable two-phased gas/leak detection sensor. The GDS provides documentation and traceability via the internal Video and HD Cameras. Designed and engineered by Breault Research Organization (BRO), the GDS uses a sample of the gas of interest as a spectral filter.
HOW IT
HOW IT WORKS
Two radiometers — one with a gas (correlation) cell in its optical path and the other without — focus on the ground through a narrow spectral absorption band (passband). The radiometer without the correlation cell measures the total incoming radiance/flux within the passband (REF signal).
The
The radiometer with the correlation cell also measures incoming radiance/flux within the passband at the COR signal. By comparing the REF and COR signals, gas concentrations are retrieved. On-board cameras take pictures of the scene and sensors measure location and flight relevant data.
Designed to operate at 300-meter AGL, the sensor mounts vertically in a standard propeller aircraft and views the scene below. The system passband is between 2-3 microns. Ground resolution is 200 mm.
Each radiometer includes features to optically match magnification and reduce parallax to within a pixel. Data is stored in a Data Power Management system for post analysis.
APPLICATIONS
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SYSTEM SPECIFICATIONS
Detection Method | :Gas Filter Correlation Radiometer | EPD | :22.5m |
Gas Detection | :Methane and Ethane Gas | FOV @ 300m AGL | :64m |
Radiometer | :Reference 1 EA | Gas Cells 2 EA | Distortion | :< 5% |
Ground Resolution of Optical System @ 300m:2 m | Operating Waveband | :2.22 to 2.41 um | |
Geometric Point Source Image Diameter | :300 um | Power Voltage | :28 VDC |
Radiometer Alignment / Overlap | :+/- 2-Pixel Alignment | Current | :10A |
Gas Cell Pressure | :0 to 1.1 atm | Environmental Temperature | :-20C to 40C |
Optical f-number | :2 | Humidity | :<95% |
SUBSYSTEMS |
Infrared Camera | :Zephir 2.5 | DIMENSIONS & WEIGHT | |
Altimeter Assembly | :LTI Universal Laser Sensor (0144745) | ||
HD Camera | :Basler USB3 C-Mount Camera (ACA5472-17UC) | Length w/o Handles | :20” |
Video Camera | :Basler Pulse USB3 CS Mount V04 (PUA1920-30UC) | Length w/ Handles | :21. 5” |
Video Camera Lens | :Basler Lens (C125-0418-5M) | Mounting Surface Diameter | :18” |
Internal Temperature Monitors | :Omega RTD-830 | Body Shape | :八邊形 |
Ultra-miniature Pressure Sensors | :P-7100 | Body Width | :16 5/8” |
Humidity / Temperature Sensor | :HC2-xx25 | Weight | :< 100 lbs |
Inertial Navigation System | :Mti-7 Miniature GNSS/INS Module |
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LUMINOUS INTENSITY METER Model # 65493A22001 |
The Luminous Intensity Meter (LIM) is a portable, battery-powered meterology instrument that measures light intensity emissions.
Designed, engineered and manufactured by Breault Research Organization (BRO), the LIM is capable of measuring several different photmetric quantities. These quantities include: source intensity in candelas (candlepower), eye illuminance in footcandles, or lux and luminance in nits.
Many
Many lights are too bright or too intense and inherently unsafe for use at night. LIM is a simple, safe and effective way to measure night lights in stadiums, parks, residential areas, and more to ensure the lights meet the safety specifications required.
LIM KIT INCLUDES
- Light Intensity Meter
- Remote Switch
- External Battery Pack
- Energizer L91 Ultimate Lithium, 1.5 V Battery x 4
- Carrying Case
- User Manual
LIM features a built-in laser range finder which measures range in feet or meters. The device includes a 1/4” –
20 threaded mount hold for tripod use.
SPECIFICATIONS
Candela | :1 to 1,000,000+ cd | |
Illuminance | :LUX or foot-candle | |
Distance | :3 ft (1 m) to 3280 ft (1000 m) typical | |
Field of View | : | |
Photometric | :2.0度 | |
Visual | :4.0度 | |
Variable IRIS | ||
Receptor | :Silicon photocell, corrected to CIE photopic response f1’ < 3% | |
Display | :LCD readout, 4 lines | |
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