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Description
The Geophysical Environmental Research Inc. IRIS Mk IV is
a high performance field spectroradiometer comprising two units: an optical
head and a control box, which are linked by a 2m long cable. The instrument
has a unique combination of features which makes it highly suitable for
certain types of ground data collection in remote sensing.
User notes
The side switch operates the IRIS if the external power
supply (which actually boosts the attached 6/12v batteries), will not
operate if this is on while only the batteries are connected by themselves
(this switch can be easily knocked on, as Kai/Ray found out).
This IRIS is downloaded using the old PCS dos based software (with default
calibration wavelength files etc). This software can be run from a dos
window in a Windows 2000 operating system (we had trouble with Win 95,
Win 98 systems for some reason). Download with baud rate of 4800. The
IRIS also won't store more than ~90 spectra without downloading to such
a laptop.
Create a new detector function file for each batch of measurements by
doing a halon-halon (clean with emery paper and running water if necessary)
so that a detector function file (created with MASTER software, also dos
based) can later be used to correct for the shifts in the relative response
characteristics of the silicon and PbS detectors. Rob Hewson has some
IDL code which can process the raw files.
However, the relectance spectra can be checked with the PCS software on
screen.
Check that the switches are turned to the black dot marked orientations
(don't forget the thumbwheel settings after you download).
Check the batteries by pressing down on the "Start" button for
at least several seconds (may need to use "Reset") and move
the knob to relevant battery selector. The 6V battery should be > 6v
and 12V battery 11.6v. The battery chargers have lights to show the battery
levels (might need to turn the 6V charger on & off to get the charge
mode set, red light should be on). The battery chargers take a few hours
and then work on trickle power. Will need up to 2 sets of batteries per
day, at most, depending on usage.
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