概述

ASD FieldSpec® 4 Standard-Res 便携式光谱辐射仪是各种遥感应用的理想选择,包括多光谱传感器地面实况调查和校准、农业分析以及雪冰研究。 除了作为世界级的光谱辐射仪外,ASD FieldSpec 4 Standard-Res 还同样适合用作坚固的便携式光谱仪,用于进行准确的接触反射率或非太阳距离测量。

关键应用

ASD FieldSpec 4 Hi-Res NG 光谱仪适合在许多行业应用中使用,包括: 

植物生理学
ASD 系统用于确定植物生理状态,包括病情状况、与氮素吸收和水分平衡相关的营养状况。

伪装表征和检测 
伪装或隐藏物体的检测需要能提供物体和背景材料之间对比的测量。 

传感器校准 
成像传感器的精确辐射度校准对许多遥感应用至关重要。 

监督分类 
可以使用图像导出的或野外测量的光谱特征来执行监督分类。 

光谱辐射和辐射度校准 
光谱辐射是对每种波长下的绝对光辐射的测量,适用于多种设置,包括测量灯、LED 显示屏或其他光源的光谱能量输出,以确定到达森林地被物或其他场所的阳光通量。 

光谱遥感 
采集可见光、近红外和短波红外图像,以对表面材料、生物和化学过程进行检测、鉴定和定量,适用于多种环境和军事应用中的研究和分析。 

地面实况调查 
实验室质量的原位现场测量具有等值照度和查看几何,以便准确关联卫星和飞机传感器数据。 

遥感和地质 
几十年来,ASD 的光谱辐射仪一直用于远程地质解读。 

野外光谱学 
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。 

景观生态学和生态学研究 
能够在野外准确执行植被和土壤的反射率及辐射度测量对于了解植物群落内的光能利用和分区至关重要。 

大气遥感研究 
对直射、漫射和总光谱太阳辐照度以及天空和云辐射度的观察对于许多气候和生态系统能量平衡研究中的大气研究至关重要。 

航空遥感测量 
采集过大或无法进行地面测量的区域的光谱。 

生物质分析 
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。 

技术指标

光谱范围350-2500 nm
光谱分辨率3 nm @ 700 nm
10 nm @ 1400/2100 nm 
光谱采样(带宽)1.4 nm @ 350-1000 nm
1.1 nm @ 1001-2500 nm
扫描时间100 毫秒
杂散光规格VNIR 0.02%、SWIR 1 和 2 0.01%
波长再现性0.1 nm
波长精度0.5 nm
最大辐射度VNIR 2X Solar、SWIR 10X Solar
通道2151
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  1.2 X10-9  W/cm2/nm/sr @ 1400 nm
SWIR 2  1.9 X10-9  W/cm2/nm/sr @ 2100 nm
重量5.44 kg (12 lbs)
校准

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)

计算机

Windows® 10 64 位笔记本电脑(仪器控制器)

保修

一年完整保修,包括专家级的客户支持

附件

ASD FieldSpec® 4 Standard-Res 光谱辐射仪

探头和照明

Contact Probe

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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)

Specifications:

Length10" ( 25.4 cm)
Weight1.5 lbs (.7 kg)
Power requirements12-18 VDC, 6.5 W
Lightsource type/Life (approx.)Halogen bulb/1500 hours
Halogen bulb color temperature2900 K
Spot size10 mm
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Hi-Brite Contact Probe

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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 TerraSpecFieldSpec 4 Hi-Res and LabSpec Hi-Res spectrometers.

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Muglight

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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.

Muglight specifications:

Size5.5” x 3.7” (14cm x 9.4cm)
Weight2.91 lbs (1.3 kg)
Power requirementsInput power 5.5 W, bulb 4 W
Light source (type/life) approx.Tungsten Quartz Halogen b/1500rs
Bulb color temp2900 K
Spot size12 mm
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Turntable

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When your application requires analysis of irregularly shaped or non-homogeneous samples, the ASD Turntable is ideal for obtaining a highly accurate average. Especially useful for instrument owners in the grain, agriculture, pulp and paper, food, plastics and mining industries.

The Turntable offers:

  • 53.2 mm sampling spot size
  • Rotates at 22 RPM
  • Fits up to a 150mm sample dish
  • Compact (8"x11"x11" or 20.32 cm x 27.94 cm x 27.94 cm) footprint.

The Turntable comes standard with a 4000 hour halogen light source and one standard 150 mm x 15 mm Petri dish.

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Plant Probe

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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.

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Leaf Clip

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ASD's Leaf Clip assembly is designed specifically for use with the Plant Probe to simplify the process of collecting spectra on live vegetation. The unique design includes a gentle trigger lock/release gripping system for holding the target sample in place without removing the leaf from its habitat, or inflicting damage.

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Integrating Sphere

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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.
寻求报价

Hi-Brite Muglight

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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 TerraSpecFieldSpec 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.

Size5.5” x 3.7” (14cm x 9.4cm)
Weight2.91 lbs (1.3 kg)
Power requirementsInput power 5.5 W, bulb 4 W
Light source (type/life) approx.Tungsten Quartz Halogen b/1500rs
Bulb color temp2900 K
Spot size12 mm
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Fiber Optic Illuminator

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The Fiber Optic Illuminator is a portable, external light source designed for use with ASD instruments and sampling accessories that do not have a built-in light source.

Technical Specifications

Length   11.43 cm (4.5 inches)
Width   8.255 cm (3.25 inches)
Weight   292 grams (10.3 ounces)
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通用附件

Pistol Grips

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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.

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FieldSpec Dual

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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.

更多信息 寻求报价
Measuring solar spectral energy

Application Note

Vicarious radiometric calibration

Application Note

Snow and ice

Application Note

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