US 11,885,671 B2 · Field spectral radiometers including calibration assemblies

Abstract

A field spectral radiometer includes a support structure and a remote sensing head disposed on the support structure. The remote sensing head includes a central axis, a first optical element disposed on a first side of the central axis and defining a first optical path for a first optical channel, and a second optical element disposed on a second side of the central axis and defining second optical path for a second optical channel. An instrumentation assembly disposed on the support structure. the instrumentation assembly includes a first detection path associated with the first optical channel and a second detection path associated with the second optical channel, the first and second detection path include optical indexers for manipulating the first and second optical channels. The field spectral radiometer may include a calibration assembly disposed on the base. The calibration assembly may include a calibrating light source for calibrating the remote sensing head.

Claims20

Dependent claims

A field spectral radiometer comprising:

a support structure
a remote sensing head disposed on the support structure, the remote sensing head comprising:
a central axis defining a viewing direction of the field spectral radiometer;
a first optical element disposed on a first side of the central axis, the first optical element defining a first optical path for a first optical channel;
and
a second optical element disposed on a second side of the central axis, the second optical element defining a second optical path for a second optical channel, wherein the first and second optical channels are associated with different wavelength ranges of interest;
and
an instrumentation assembly disposed on the support structure, the instrumentation assembly comprising a first detection path associated with the first optical channel and a second detection path associated with the second optical channel, the first detection path comprising a first optical indexer to filter light reflected by the first optical element, the second detection path comprising a second optical indexer to filter light reflected by the second optical element.

5 more elements

A field spectral radiometer comprising:

a base;
a deployment arm extending from an end of the base, the deployment arm comprising a first portion connected to the base, a second portion, and a rotating connection extending between the first portion and the second portion, the rotating connection defining a first axis of rotation extending in a first direction;
a rotating support coupled to an end of the second portion;
a remote sensing head coupled to the rotating support, wherein the rotating support includes elements that are adjustable to control a pan and a tilt of the remote sensing head;
and
a calibration assembly disposed on the base, the calibration assembly comprising a calibrating light source comprising an opening, wherein the deployment arm rotates about the first axis of rotation such that the second portion rotates relative to the first portion to place the remote sensing head in a calibrating position where a field of view of the calibration assembly receives light from the calibrating light source.

3 more elements

Dependencies are inferred from the claim text.

Field spectral radiometers including calibration assemblies

Life of this patent

Field spectral radiometers including calibration assemblies

Life of this patent

Abstract

Claims20