Determination of the critical exposure and the penetration depth of the photosensitive resin for Stereolithography;
光固化快速成形光敏树脂临界曝光量和透射深度的测试研究
Combined with the relationship between evanescent wave penetration depth and incidence angle,a new parabola taper fiber probe is put forward.
结合倏逝波透射深度与光线入射角之间的关系,提出一种新的抛物线锥形光纤探头。
According to the relationship between the penetration depth of the evanescent wave and the incident light angle,with the inner face kf probe to the effect of the light reflection angle,a new parabola taper fiber is put forward and compared with different tape.
根据倏逝波透射深度与光线入射角之间的关系,结合不同形状的探针内面对光线反射角的影响,提出抛物线锥形光纤探头,并对抛物线参数进行了比较。
If the method is used, the calibration of the standard gray scale is not need and the object transmission density on large area can be measured accurately.
利用改变曝光时间t和改变透射率τ对曝光量的改变是完全等价的这一原理,不用借助任何标准密度灰片校准,可在大面积上足够精准地测量物体透射密度。
The results involved in this thesis as follows;(1)The transmission intensity of the film under perpendicular magnetic field decreases with increase of the magnetic field.
研究发现：(1)薄膜外加垂直磁场时,光透射强度随着磁场强度的增加而减小；(2)薄膜外加平行磁场时,垂直偏振光和平行偏振光的透射强度随着磁场强度的增加而变化规律不同； (3)存在一个临界磁场,其值约为4776A/m,当外加磁场(垂直和平行)强度＞4776A/m 后,薄膜透射光强的变化规律有明显不同,这种现象是由于外加磁场使纳米磁性液体微粒产生聚集,磁场＞4776A/m 后,形成有规则的排列结构所造成；(4)纳米磁性液体外加垂直磁场下透射强度的响应时间随磁场强度的变化情况。
optical transmission density
光学透射密度，即光学玻璃或器材的透光程度，是不透明度的对数
Geometric conditions for measuring transmission density
GB/T11500-1989摄影透射密度测量的几何条件
ionizing radiation transmission density meter
电离辐射透过式密度计
scanning transmission microdensitometer
扫描透射显微密度计
gamma-ray penetration type liquid density meter
γ射线穿透式液体密度计
Fabrication of high-aspect-ratio and high-density X-ray transmission grating
大高宽比、高线密度X射线透射光栅的制作
Influence of the Multipole Effects to the Opacity of Hot and Dense Plasmas;
高温稠密等离子体辐射不透明度的多极效应
density meter(of ionizing radiation)
（电离辐射）密度计
ionizing radiation transmission thickness meter
电离辐射透过式厚度计
modulated beam microdensitometer
调制射束显微密度计
Density meters utilizing ionizing radiation
GB/T13980-1992电离辐射密度计
radioactive sediment density probe
放射性沉积物密度探针
scanning reflective microdensitometer
扫描反射显微光密度计
radioisotope densimeter
放射性同位素密度计
The density logger consists of a radiation source.
密度测井仪包括辐射源。
Thickness of consistency;impenetrability.
致密度一致的程度，不可穿透性
ionizing radiation backscatter soil density meter
电离辐射反散射土壤密度计
diffuse transmittance
漫射透光率,漫射透射比