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上海思百吉儀器系統(tǒng)有限公司
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更新時(shí)間：2020-09-07 16:23:22瀏覽次數(shù)：188次
聯(lián)系我時(shí)，請(qǐng)告知來(lái)自 儀表網(wǎng)ASD FieldSpec? 4 Hi-Res 是一款設(shè)計(jì)用于為各種遙感應(yīng)用提供更快、更精確的光譜數(shù)據(jù)測(cè)量結(jié)果的高分辨率光譜輻射儀。
ASD FieldSpec? 4 Hi-Res 光譜輻射儀的 3 nm VNIR、8 nm SWIR 光譜分辨率可在全范圍太陽(yáng)輻照光譜 (350 – 2500 nm) 內(nèi)提供的光譜性能。 SWIR 范圍 (1000 – 2500 nm) 內(nèi)的增強(qiáng)光譜分辨率特別適合檢測(cè)和識(shí)別具有窄光譜特征和更長(zhǎng)波長(zhǎng)的化合物，如蝕變礦物和用于大氣分析的氣體。
此外，8 nm 分辨率達(dá)到甚至超過大多數(shù)高光譜傳感器的光譜分辨率，這使 ASD FieldSpec 4 Hi-Res 光譜輻射儀成為傳感器驗(yàn)證和校準(zhǔn)以及地面實(shí)況調(diào)查和光譜庫(kù)建立的選擇。
與所有 ASD FieldSpec 光譜輻射儀一樣，ASD FieldSpec 4 Hi-Res 可作為高分辨率光譜儀使用，以提供非常精確的接觸反射率測(cè)量結(jié)果。
ASD FieldSpec 4 Hi-Res NG 光譜儀適合在許多行業(yè)應(yīng)用中使用，包括：
植物生理學(xué)
ASD 系統(tǒng)用于確定植物生理狀態(tài)，包括病情狀況、與氮素吸收和水分平衡相關(guān)的營(yíng)養(yǎng)狀況。
偽裝表征和檢測(cè)
偽裝或隱藏物體的檢測(cè)需要能提供物體和背景材料之間對(duì)比的測(cè)量。
傳感器校準(zhǔn)
成像傳感器的精確輻射度校準(zhǔn)對(duì)許多遙感應(yīng)用至關(guān)重要。
監(jiān)督分類
可以使用圖像導(dǎo)出的或野外測(cè)量的光譜特征來(lái)執(zhí)行監(jiān)督分類。
光譜輻射和輻射度校準(zhǔn)
光譜輻射是對(duì)每種波長(zhǎng)下的光輻射的測(cè)量，適用于多種設(shè)置，包括測(cè)量燈、LED 顯示屏或其他光源的光譜能量輸出，以確定到達(dá)森林地被物或其他場(chǎng)所的陽(yáng)光通量。
光譜遙感
采集可見光、近紅外和短波紅外圖像，以對(duì)表面材料、生物和化學(xué)過程進(jìn)行檢測(cè)、鑒定和定量，適用于多種環(huán)境和軍事應(yīng)用中的研究和分析。
地面實(shí)況調(diào)查
實(shí)驗(yàn)室質(zhì)量的原位現(xiàn)場(chǎng)測(cè)量具有等值照度和查看幾何，以便準(zhǔn)確關(guān)聯(lián)衛(wèi)星和飛機(jī)傳感器數(shù)據(jù)。
遙感和地質(zhì)
幾十年來(lái)，ASD 的光譜輻射儀一直用于遠(yuǎn)程地質(zhì)解讀。
野外光譜學(xué)
野外光譜學(xué) — 研究野外環(huán)境中的物體光譜特征與其生物物理屬性之間的相互關(guān)系。
景觀生態(tài)學(xué)和生態(tài)學(xué)研究
能夠在野外準(zhǔn)確執(zhí)行植被和土壤的反射率及輻射度測(cè)量對(duì)于了解植物群落內(nèi)的光能利用和分區(qū)至關(guān)重要。
大氣遙感研究
對(duì)直射、漫射和總光譜太陽(yáng)輻照度以及天空和云輻射度的觀察對(duì)于許多氣候和生態(tài)系統(tǒng)能量平衡研究中的大氣研究至關(guān)重要。
航空遙感測(cè)量
采集過大或無(wú)法進(jìn)行地面測(cè)量的區(qū)域的光譜。
生物質(zhì)分析
從大豆和其他作物的油含量表征到生物燃料處理中關(guān)鍵參數(shù)水平的定量和終產(chǎn)品的質(zhì)量分析，近紅外 (NIR) 光譜是理想的測(cè)量工具。
| 光譜范圍 | 350-2500 nm |
| 光譜分辨率 | 3 nm @ 700 nm 8 nm @ 1400/2100 nm |
| 光譜采樣（帶寬） | 1.4 nm @ 350-1000 nm 1.1 nm @ 1001-2500 nm |
| 掃描時(shí)間 | 100 毫秒 |
| 雜散光規(guī)格 | VNIR 0.02%、SWIR 1 和 2 0.01% |
| 波長(zhǎng)再現(xiàn)性 | 0.1 nm |
| 波長(zhǎng)精度 | 0.5 nm |
| 大輻射度 | VNIR 2X Solar、SWIR 10X Solar |
| 通道 | 2151 |
| 檢測(cè)器 | VNIR 檢測(cè)器 (350-1000 nm)：512 元素硅陣列 SWIR 1 檢測(cè)器 (1001-1800 nm)：漸變折射率 InGaAs 光電二極管，雙級(jí) TE 冷卻 SWIR 2 檢測(cè)器 (1801-2500 nm)：漸變折射率 InGaAs 光電二極管，雙級(jí) TE 冷卻 |
| 輸入 | 1.5 m 光纖（25° 視場(chǎng)）。 提供可選的視場(chǎng)更窄的光纖。 |
| 噪聲等效輻射 (NEdL) | VNIR 1.0 X10-9 W/cm2/nm/sr @700 nm SWIR 1 1.4 X10-9 W/cm2/nm/sr @ 1400 nm SWIR 2 2.2 X10-9 W/cm2/nm/sr @ 2100 nm |
| 重量 | 5.44 kg (12 lbs) |
| 校準(zhǔn) | 波長(zhǎng)、反射率、輻射度*、輻照度*。 所有校準(zhǔn)均為 NIST 可溯源校準(zhǔn)。 （*輻射度校準(zhǔn)為可選） |
| 計(jì)算機(jī) | Windows? 10 64 位筆記本電腦（儀器控制器） |
| 保修 | 一年完整保修，包括專家級(jí)的客戶支持 |
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:
| 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 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:
| 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 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.
|
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:
The Turntable comes standard with a 4000 hour halogen light source and one standard 150 mm x 15 mm Petri dish.
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.
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.
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.
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) |
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.
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.
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