®4 Hi-Res NG 光谱辐射仪的增强光谱分辨率设计用于满足新一代高光谱成像系统的要求，如 AVRIS-NG 和 HySpex ODIN-1024。 除了光谱分辨率外，ASD FieldSpec 4 Hi-Res NG（与所有 ASD 系列光谱辐射仪一样）还集成了渐变折射率 InGaAs 光电二极管 SWIR 检测器，可在野外便携式设备中提供很小的可用光谱采样间隔，在 350 至 2,500 nm 的完整光谱范围内具有 1,875 个测量波长，确保甚至可以检测到细微的光谱特征。
ASD FieldSpec 4 Hi-Res NG 光谱仪适合在许多行业应用中使用，包括：
野外光谱学 — 研究野外环境中的物体光谱特征与其生物物理属性之间的相互关系。
从大豆和其他作物的油含量表征到生物燃料处理中关键参数水平的定量和最终产品的质量分析，近红外 (NIR) 光谱是理想的测量工具。
|光谱分辨率||3 nm @ 700 nm
6 nm @ 1400/2100 nm
|光谱采样（带宽）||1.4 nm @ 350-1000 nm
1.1 nm @ 1001-2500 nm
|杂散光规格||VNIR 0.02%、SWIR 1 和 2 0.01%|
|最大辐射度||VNIR 2X Solar、SWIR 10X Solar|
|检测器||VNIR 检测器 (350-1000 nm)：512 元素硅阵列
SWIR 1 检测器 (1001-1800 nm)：渐变折射率 InGaAs 光电二极管，双级 TE 冷却
SWIR 2 检测器 (1801-2500 nm)：渐变折射率 InGaAs 光电二极管，双级 TE 冷却
|输入||1.5 m 光纤（25° 视场）。 提供可选的视场更窄的光纤。|
|噪声等效辐射 (NEdL)||VNIR 1.0 X10-9 W/cm2/nm/sr @700 nm
SWIR 1 8.0 X10-9 W/cm2/nm/sr @ 1400 nm
SWIR 2 8.0 X10-9 W/cm2/nm/sr @ 2100 nm
|重量||5.44 kg (12 lbs)|
波长、绝对反射率、辐射度*、辐照度*。 所有校准均为 NIST 可溯源校准。 （*辐射度校准为可选）
Windows® 10 64-bit laptop（仪器控制器）
ASD FieldSpec® 4 Hi-Res NG 光谱辐射仪
The ASD Contact Probe is designed for contact measurements of solid raw materials such as minerals, grains, other granular materials. Its innovative optical design minimizes measurement errors associated with stray light and allows for measurement of samples through clear and transparent plastic bags.
In addition to the standard contact probe, ASD also offer the Hi-Brite contact probe and the Plant Probe.
All contact probes are available with a ruggedized cable feed and cable, designed for applications that involve extra cold or harsh temperatures. (see image below specifications)
|Length||10" ( 25.4 cm)|
|Weight||1.5 lbs (.7 kg)|
|Power requirements||12-18 VDC, 6.5 W|
|Lightsource type/Life (approx.)||Halogen bulb/1500 hours|
|Halogen bulb color temperature||2900 K|
|Spot size||10 mm|
The same design, features, and benefits of ASD's standard contact probe, but with a higher intensity illumination setting on the sample window. This higher intensity illumination is ideal for inorganic applications, and is recommended for mineral and ore characterization in mining exploration and research applications using the TerraSpec, FieldSpec 4 Hi-Res and LabSpec Hi-Res spectrometers.
The same design, features, and benefits of ASD's standard Muglight, but with a higher intensity illumination setting on the sample window. This higher intensity illumination is ideal for inorganic applications, and is recommended for use with the TerraSpec, FieldSpec 4 Hi-Res, and LabSpec 4 Hi-Res spectrometer models.
The Hi-Brite Muglight is designed for analysis of raw materials requiring reflectance and absorbance measurements. It can measure samples through glass vials, or using the ASD sampling tray adapter. It's unique and innovative design minimizes measurement errors associated with stray light and specular reflected components.
The ASD Muglight is designed for analysis of raw materials requiring reflectance and absorbance measurements. It can measure samples through glass vials, or using the ASD sampling tray adapter. It's unique and innovative design minimizes measurement errors associated with stray light and specular reflected components.
For users requiring higher intensity illumination, ASD also offers the Hi-Brite Muglight.
|Size||5.5” x 3.7” (14cm x 9.4cm)|
|Weight||2.91 lbs (1.3 kg)|
|Power requirements||Input power 5.5 W, bulb 4 W|
|Light source (type/life) approx.||Tungsten Quartz Halogen b/1500rs|
|Bulb color temp||2900 K|
|Spot size||12 mm|
The same great design and functionality as ASD's standard contact probe with a lower intensity bulb position for non-destructive data collection from live vegetation and other heat-sensitive targets.
The plant probe can be used alone or in combination with a Leaf Clip to protect sensitive plants.
ASD's Leaf Clip assembly interfaces with the ASD Plant Probe. The Clip comes with the same replaceable white and black background standards (eight of each including the pre-mounted ones) that were included with the previous version of the leaf clip.
The white backgrounds are .120mm thick x .935" OD Gore-Tex white PTFE reflector material. The black backgrounds are .004" thick x .935 OD black painted Vinyl. White Reference Cap (A122634) or 3.62” Spectralon (A128533) can be used as white background in addition to the Gortex for more accurate measurements.
The Leaf Clip 2 also uses the same mounting bracket as the FieldSpec pistol grip, enabling it to be secured to the backpack waist belt when not in use.
Integrating spheres collect reflected light from samples over a full hemisphere. The sphere, by nature of its internal diffuse (lambertian) reflection and integration of the energy, is insensitive to directional reflectance features coming from the sample, and therefore, gives a very repeatable “averaged” response to the reflectance of the sample placed in the beam at the sphere port. Sample placement and incidence beam/collection alignment are less critical to the measurement results because the integrating sphere looks at representative averaged energy from all angles at the same time.
ASD offers multiple pistol grip options for superior ease-of-use and adaptability to a variety of environmental and situational elements, when using your FieldSpec® and FieldSpec HandHeld instruments. All pistol grip designs include the quick-connect/disconnect fiber optic cable snap-in feature, pistol grip clip assembly for safely and securely affixing the pistol grip to your waist-belt on the back pack, and many offer a built-in bulls-eye level for added precision.
ASD carries a wide array of calibrated and non-calibrated diffuse white and gray reference panels in varying sizes (from 2 x 2 in. to 12 x 12 in. or 5.1 x 5.1 cm to 30.5 cm x 30.5 cm) and reflectance levels, including encapsulated gray scale (NIST/NRC traceable) wavelength and USP standards for USP 1119. Calibrated panels come with certificate and documentation showing standard deviation and reflectance factors.
All reference panels and standards may be purchased separately. To provide our customers with a more cost-effective approach, specific sizes or styles of reference panels are included in accessory bundles designed for maximum compatibility with a particular application.
Your ASD sales representative will be able to advise you on the best option(s) for your needs.
Stop waiting for “ideal” weather to get your fieldwork done
The FieldSpec Dual collection software system leverages the value and utility of the world’s most trusted line of portable field spectrometers. The software intercalibrates and wirelessly synchronizes two ASD FieldSpec spectroradiometers to collect near simultaneous white reference and sample target radiance spectra. The system virtually eliminates errors associated with time varying atmospheric conditions, one of the biggest challenges to collecting accurate field spectra.