尼康Nikon LV100-UDM-POL/DS石棉检测显微镜-显微系统-仪器设备-生物在线
上海市衡浩仪器有限公司
尼康Nikon LV100-UDM-POL/DS石棉检测显微镜

尼康Nikon LV100-UDM-POL/DS石棉检测显微镜

商家询价

产品名称： 尼康Nikon LV100-UDM-POL/DS石棉检测显微镜

英文名称：

产品编号： LV100-UDM-POL/DS

产品价格： 0

产品产地： 日本

品牌商标： Nikon/尼康

更新时间： null

使用范围： null

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Polarizing microscopes can measure the properties of asbestos, such as refractive indices, birefringence, retardation, extinction angles, pleochroism and signs of elongation, helping in the identification of asbestos. LV100-UDM-POL/DS is a high-performance, polarizing microscope with accessories that enable dispersion staining observation of up to 400x.

  • The LV100-UDM-POL/DS employs optics with high extinction factors, facilitating detection and observation of high-precision optical properties.
  • The LV100-UDM-POL/DS enables analysis of birefringence, extinction angles, signs of elongation, refractive indices, birefringence magnitudes and pleochroism of asbestos.
  • Changing the objective and condenser lenses allows observation of asbestos dispersion colors corresponding to the refractive indices of the immersion liquid. The LV100-UDM-POL/DS enables both quantitative analysis and dispersion staining observation of asbestos.
  • A fully rotatable circular graduated stage offers trouble-free sample rotation and accurate analysis during polarization observation.

Birefringence

Mixture of rock wool and chrysotile

Cross polars, diagonal position 

 

Cross polars, extinction position

Extinction angle

Amosite


Plain polarized light, cleavage face alignedwith the crosshair


Crossed polars, extinction angle measured

Sign of elongation


Amosite Positive: Subtractive diagonal position


Crocidolite Negative: Additive diagonal position

Refractive index (refraction index of the liquid nD=1.605)

Chrysotile and amosite


The upper part of a specimen is focused


The lower part of a specimen is focused

Retardation (optical path difference) for obtaining birefringence magnitude

Amosite


Diagonal position


Subtractive diagonal position confirmed (a test plate is inserted)


Analyzer rotation angle measured (Senarmont compensator is inserted)

Pleochroism

Crosidolite


Parallel to vibration direction of polarizer


Orthogonal to vibration direction of polarizer

Dispersion colors


Chrysotile
nD = 1.550, red-violet to blue


Amosite
nD = 1.680, pink


Crocidolite
nD = 1.680, orange to red ocher