ADC - Air

(Agriculture Digital Camera)

Ruggedized Weatherproof ADC for Manned Aircraft

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The ADC Air is a ruggedized single sensor digital camera designed and optimized for capture of visible light wavelengths longer than 520nm and near-infrared wavelengths up to 920nm. Like the ADC, the primary use of this product is for determining the frequencies of light reflected and absorbed by crop canopies and vegetation. When the ADC Air's output is fed into the accompanying PixelWrench2 image software, stress factors and the overall health of the photographed vegetation may be determined. Unlike the ADC, the Air version is weathertight and fully protected for harsh environments. All in-flight control is through a single cable. Weather sealed doors and a screw-on lens hood allow full access to the normal camera connectors, lens and CF card when out of the weather. This is the preferred camera for external mounting on manned and un-manned aircraft. The ADC Air is also an ideal solution for long term vegetation studies in static ground-based installations. Refer to Selected Readings referenced on this website for descriptions of specific applications.

The ADC Air's field of view (FOV) is laid out in a 4:3 format.  When carried in a manned or unmanned aircraft, the field of view increases as the above ground level (AGL) altitude increases.  As the AGL increases, the camera's ability to resolve individual details on the ground decreases.  With its standard 8.0 mm lens, when flown at altitude of 400 feet above ground level, this camera creates an image large enough to capture 1.85 acres at a resolution of less than two inches per pixel in a single shot! 

ADC Air (with 8.0 mm Lens)

Ground Resolution & FOV Examples

 

Sensor & Lens Parameters	Object Distance (Altitude Above Ground Level in meters)	Ground Resolution in mm per pixel	FOV (width x height) in meters
The values shown at right were derived from the FOV (Field of View) Optical Calculator contained in Tetracam's PixelWrench2 software (included with this camera) using the current values for this camera shown below:  Sensor Dimensions (mm):  6.55 x 4.92 Pixel Size (microns): 3.2 Camera Lens Focal Length (mm):  8.0	122 m (~ 400 ft)	48.8	100 x 75
	213.4 m (~ 700 ft)	85.4	175 x 131
	365.8 m (~ 1200 ft)	146.3	300 x 225
	915 m (~ 3000 ft)	366	749 x 563

Typical Availability:  3 to 4 weeks (although faster turnaround times are often possible).  Please contact us for more information regarding configuration options, pricing and availability.

Features and Specifications

• Higher resolution and improved spectral accuracy.
  
  
• Greater flexibility of operation and control
  
  
• Red, Green and NIR bands (approximating
  TM2, TM3 and TM4) provide the information needed
  for extraction of NDVI, SAVI, canopy segmentation and
  NIR / Green ratios.
  
  
• Video out and standard GPS data
  capture from an external receiver.
  
  
• User interchangable optics
  
  
• The optional SensorLink GPS waypoint triggering
  application enables camera triggering at pre-defined
  waypoints.
  
  
• Uses standard Compact Flash Memory
  cards
  
  
• Powerful PixelWrench2 image editing
  software with several tools specific to
  multi-spectral images and ADC cameras.

Download the ADC-Air Brochure (2.42MB)   ADC - Users Manual (1.04 MB - pdf) Download the ADC FAQ (29kb)   Download the ADC Optrex/Aptina Addendum 3/1/12 Note:  Each system in the ADC family shares a common Users Manual.

Available now through our online Store  Contact your Tetracam Reseller for additional information and pricing or contact Tetracam direct at info@tetracam.com.

List of files on included CD:

• 3.2 megapixel CMOS image sensor (2048 x 1536 pixels)
  
  

• Green, Red and NIR sensitivity with bands approximately equal to TM2, TM3 and TM4.
  
  
• Image storage to Compact Flash in Tetracam 10 bit DCM lossless, 8 bit RAW, and 10 bit RAW formats.
  
  
• Tough CNC machined aluminum housing.
  
  
• CS lens mount system compatible with thousands of available lenses.
  
  
• Camera supplied with a 8.5 mm lens
  Optional 4.5 - 10 mm varifocal lens also available.

• Shutter type: Rolling shutter
  
  

• Power Source options:
  External only - 5 to 12 VDC
  
  
• USB interface
  
  
• Multipin I/O connector for use with Tetracam remote trigger and viewer accessories.
  
  
• Image Capture Capacity:
  Approx. 3 MB per image, limited only by CF card size.
  
  
• Image Capture Rate:
  From 2 to 5 seconds per picture depending on file save mode selected.
  
  
• Inputs:
  5 - 12 VDC
  RS-232 dedicated to capture of NMEA GPS sentences.
  External Trigger
  
  
• Outputs:
  Realtime NTSC or PAL Video for both viewfinder and menu operations.
  
  
• Data Interface:
  USB 1.1
  
  
• Dimensions:
  5.4 in. x 3.5 in. x 3.2 in. (137 mm x 90 mm x 80 mm) with lens hood in place
  22 oz. (630 gr.) without multi-I/O cable
  
  
• Mount:
  Two 1/4-20 UNC X .28 sockets on bottom of camera; .650" from back of camera and 1.325" from each side
  
  
• System Includes:
  Camera and Lens
  2GB CF card
  USB Cable
  AC/DC power supply
  Software Calibration Tile
  Tetracam PixelWrench2 Application Software (for Windows)
  Rugged carrying case

ADC Spectral Images Captured in the Near IR

Aerial Crop Photo taken with ADC Air