Field of view measurement and correction term calculation for small-field radiometer

Zhenling, 杨振岭 Yang; Wei, 方伟 Fang; Kai, 王凯 Wang; Ming, 姜明 Jiang; Bao-qi, 宋宝奇 Song

doi:10.3788/ope.20132104.0870

Cited by 3 publications

(2 citation statements)

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“…In recent years the kind of rock bolt used in geotechnical engineering is increasing [1][2][3] ,process is also in constant change. Flexible inner pressure bolt is a new bolt [4,5] , high elastic polymer material is used to ake bolt body, the bolt body is vertical enhanced by linear materials such as steel wire or fiber, is ring enhanced with high strength fiber limited elongation. Under injection pressure, the bolt can realize larger whole radial deformation and almost without vertical deformation.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation Research of the Influence Parameter of Impedance Friction Stress on the Anchorage Segment of Flexible Injection Bolt

Zhang

Zuo

2014

AMM

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On account of analytic method and test method are difficult, we use the finite element method on flexible inner pressure bolt, Obtaining: The adjacent formation elasticity coefficient is bigger this kind of anchor rod the anchor effect to be better; Within a certain range, the anchor rod body rubber material elasticity coefficient is smaller is more advantageous in enhances the anchor rod the anchor effect; Increase the coefficient of friction between the bolt and surrounding rock, Can significantly improve the anchor bolt effect; Anchor maximum impedance friction stress uniformly distributed along the axial direction, This causes the flexible note to press the anchor rod to have the big superiority.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation Research of the Influence Parameter of Impedance Friction Stress on the Anchorage Segment of Flexible Injection Bolt

Zhang

Zuo

2014

AMM

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“…Flexible pressurized anchor is a new anchor [1][2], which used high elasticity polymeric materials as cavity anchor, strengthened the anchor longitudinal through linear material such as wire or fiber, and strengthened the anchor circumference through extending fiber tape limitedly. Under the effect of injection pressure, the anchor can achieve large overall radial deformation and almost no longitudinal deformation of anchor.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on Ultimate Pullout Resistance Test and Theoretical Derivation of Flexible Pressurized Anchor with Numerical Simulation Result

Zhang

Wei

2012

AMM

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The study on anchorage characteristics of flexible pressurized anchor should be along with theoretical analysis, numerical simulation and test study. Through comparing three calculation results, it is concluded that the theoretical analysis and numerical simulation can authenticate the correctness of calculation process each other; After considering the situation that friction coefficient changed with different contact pressure stress, the deviation of calculation of theory derivation and numerical simulation with experimental results significantly reduced; Anchor was simplified for anisotropic composite material body, which should be able to better reduce deviation among test, theoretical derivation and numerical simulation calculation.

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Total solar irradiance monitors, space instruments for measuring total solar irradiance on FY-3 satellites

Wang

et al. 2014

SPIE Proceedings

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Total Solar Irradiance (TSI) has been recorded daily by Total Solar Irradiance Monitors (TSIM) with overlapping measurements on FY-3 (Feng Yun-3) series satellites since 2008. Instrument descriptions, operation in space and flight performance of three TSIMs are presented in this paper. TSI is measured by electrical substitution radiometers integrated in TSIM, with traceability to SI. TSIM/FY-3A and TSIM/FY-3B share nearly the same design. Since TSIM/FY-3A and TSIM/FY-3B have no pointing system, the Sun is only observed when the Sunlight sweeps TSIM's field-of-view and TSI measurements are influenced inevitably by solar pointing errors. TSIM/FY-3C, a radiometer package was constructed with a pointing system for solar tracking in order to achieve accurate solar pointing. TSIM/FY-3C was sent into orbit in September 2013 onboard FY-3C satellite. Daily TSI measurements have been performed by TSIM/FY-3C with autonomous accurate solar tracking for 1 year. TSIM/FY-3C is in a good instrument health according to its on-orbit data.

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Field of view measurement and correction term calculation for small-field radiometer

Cited by 3 publications

References 0 publications

Numerical Simulation Research of the Influence Parameter of Impedance Friction Stress on the Anchorage Segment of Flexible Injection Bolt

Numerical Simulation Research of the Influence Parameter of Impedance Friction Stress on the Anchorage Segment of Flexible Injection Bolt

Comparative Study on Ultimate Pullout Resistance Test and Theoretical Derivation of Flexible Pressurized Anchor with Numerical Simulation Result

Total solar irradiance monitors, space instruments for measuring total solar irradiance on FY-3 satellites

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