Short URL

ASD Spectroradiometer

 

Other Research Instruments areas:

Loading, please wait...

ASD FieldSpec HandHeld (325-1,075 nm) 

The Analytical Spectral Devices (ASD) FieldSpec HandHeld spectroradiometer offers a relatively mobile technique for capturing quality hyperspectra in situ.  Uncalibrated remote sensor data does not take into account the attenuating affects of the atmosphere between target and sensor.  The FieldSpec Handheld can acquire hyperspectra in the region of the electromagnetic spectrum with wavelengths from approximately 325 to 1,075 nm (10-9 m).  The spectroradiometer benefits CAST's research in a variety of projects where 1) hyperspectra are needed to understand the spectral characteristics of a target (e.g. to determine if identification with a remote sensor may be possible), and 2) atmospheric correction to remote sensor data is needed.  The figure below shows the spectroradiometer (on the right) attached to a ruggedized laptop.  Additional equipment includes a Spectralon panel, a tripod, and a calibrated lighting apparatus for collecting spectra in the lab.

The portability of the spectroradiometer has been helpful when teaching hyperspectral remote sensing and in situ data collection techniques to students in Principles of Remote Sensing and other CAST-supported courses.  A Powerpoint presentation prepared by an NSF Research Experience for Undergraduates (REU) student in 2006 describes how to deploy the spectroradiometer.