共查询到20条相似文献,搜索用时 44 毫秒
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VC&OpenGL技术在三维场测试和虚拟仪器中的应用 总被引:1,自引:0,他引:1
通过VC&OpenGL的编程完成了一个三维系统平台,平台能够快速构建三维场景,用颜色维表示场强,并能够对三维场分布进行点、网格、面、切片等多种形态的良好展示;系统与仪器的接口通过串口进行;同时,系统通过3DS文件导入,解决了虚拟仪器的构建和展示问题,且仪器各部分能够按要求分别进行状态改变和操作。实例展示说明了系统应用的性能。 相似文献
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我国是一个地震频发的国家,地震带来的灾害严重影响着我国人民的生命财产安全,因此,如何高效、快捷的开展地震预报、监测、救灾工作将具有十分重要的应用价值及现实意义。现代遥感技术因具有时效性、经济性、数据的综合性和可比性,且能大面积同步观测,多方位、全天候动态监测等优势,因此可在地震监测与救灾减灾中发挥重要作用。 相似文献
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随着油田勘探开发的深入,对薄层、薄互层及非均质性储层的评价显得越来越重要。本文重点列举了高分辨率测井仪器在评价薄层、薄互层、地层非均质性等方面的应用。 相似文献
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针对工作区构造发育的特点,三维地震勘探资料解释以三维叠前时间偏移数据体为主,结合方差体数据体,采用井约束法,从剖面、平面、沿层各个方向,利用地震数据的振幅、相位、频率特征,以及振幅的方差体特征,对工作区内发育在煤层上的地质构造进行不同角度的认识研究,从而获得切合实际的解释成果。 相似文献
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孙贵林 《中国新技术新产品》2014,(17):119-119
无源微地震技术根据其在煤矿生产中的应用,可以将其划分为地面监测技术和井下监测技术,对保障煤矿企业的安全生产工作有着重要作用。本文便对用于采矿安全检测中的微地震技术进行深入研究。 相似文献
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在本文介绍的测姿方案中,采用GPS接收机对船舶载体姿态测量应用方面进行了研究。其研究方向主要集中在对船舶载体姿态进行测量,并利用现有试验条件进行了尝试,确定船的偏航角、横滚角、俯仰角,最终确定船舶的姿态与时间的关系。目前,建立在相对定位基础上的GPS导航技术己经成熟,随着载波相位动态跟踪技术的发展,以此为基础的GPS测姿系统将逐渐显现出其巨大的潜力和优越性。因此,其应用前景是十分广阔的。 相似文献
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3D printing technology redesigns the production chain and contributes to the production of customised products, or products with specific characteristics. The evolution of this production technology and its various applications improve our daily life and lead to important changes in economic and social level. The aim of this dissertation is to examine the attitude of people towards 3D printing technological innovation and their intention to use it at their workplace. A new conceptual model has been designed and empirically tested using primary data collected using a structured questionnaire. The sample consists of 258 respondents from a number of European countries. The findings highlight the importance of perceived usefulness, output usability, compatibility and attitude towards understanding respondents’ intention to use 3D printing technology. 相似文献
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Matthew A. Brzostowski George A. McMechan 《International journal of imaging systems and technology》1994,5(1):62-72
Tomographic velocity estimation of a three-dimensional (3D) anomaly as a function of time is implemented by the simultaneous iterative reconstruction technique (SIRT) using synthetic observed travel times as data. Rays are retraced every 6–7 iterations to ansure consistency between rays and velocities. An expanding steam front modeled within a shallow reservoir is imaged at two points in time using three different survey geometries containing both cross-well and well-to-surface paths. Synthetic data can be used to evaluate and optimize survey design and resolution prior to field data acquisition. Resolution is evaluated by computing point spread functions and can (theoretically) be made as high as desired (up to the limit imposed by wave phenomena and the noise in the data) by increasing the number of independent observations and correspondingly reducing the image voxel size. ©1994 John Wiley & Sons Inc. 相似文献
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The subseabed is currently being considered as a disposal site for nuclear waste, and if it does become an option, monitoring to detect escape of the disposed material will be essential. In this paper, we define types of nuclear waste and present the dimensions of the monitoring problems that would be encountered in ocean disposal. We then summarize the characteristics of a number of physical, chemical, biological, and ecological monitoring methods. We also describe the advances and developments that will be necessary before the monitoring functions and support systems can be employed. 相似文献
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三维超精密测量技术对提升高端装备制造质量具有基础支撑作用。随着先进制造技术的不断进步,减小系统测量误差和扩大测量范围已成为三维超精密测量技术发展的关键。近年来,共焦三维测量技术发展迅猛,其应用领域也从生物医学逐步扩展到加工制造领域。本文系统介绍了共焦三维测量技术的研究现状和应用进展,从技术原理角度阐述了提高共焦三维测量分辨力以及扩大共焦三维测量范围的方法,对比总结了干涉共焦测量、差动共焦三维测量、光谱共焦测量等技术的相关研究成果,详细介绍了共焦三维测量技术在表面轮廓测量、微结构特征尺寸测量和关键部件内间隙测量等领域的应用情况,并在此基础上,对共焦三维测量技术的未来发展方向进行了展望,以期为后续研究提供技术参考。 相似文献
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室内水槽实验是研究地质沉积过程及其演化规律的重要手段,高精度获取沉积过程中的地质体的变化是这类模拟实验非常关键的环节。文章介绍了新研制的三维超声地震模型实时成像系统的主要组成及关键技术。该系统用于模拟海上地震,可以在沉积实验后通过快速测量及对数据的实时偏移处理与成像可以获取变化的多层复杂地质模型动态图像,极大地提高了实验效率和成像精度。该系统具有良好的实时性、成像质量以及探测范围,在对研究地质沉积、海洋地质以及三维地震模型研究等方面有着广泛应用前景。 相似文献
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光学3D坐标测量技术研究 总被引:4,自引:0,他引:4
研究了光学坐标测量系统三维精密视觉测量方法,对其核心技术:数字成像器件模型及标定方法、辅助靶标技术以及高精度亚象素图像处理算法进行了深入的讨论,并提出了详细的解决方法.经实验证明,这些方法切实可行,达到了所要求的精度,从而为光学坐标测量系统的设计提供了可靠依据. 相似文献
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Chuanbei Liu Jianming Gao Yongbo Tang Xuemei Chen 《Journal of Materials Science》2018,53(24):16415-16422
In this study, gypsum-based materials (GM) comprising mainly α-hemihydrate gypsum, polycarboxylate, hydroxypropyl methyl cellulose and starch ether were prepared and used for 3D robocasting (3DR). The setting time and rheological properties of the GM slurry and the physical properties of the GM sample, including bulk density, porosity and mechanical strength, were investigated. The results indicate that the GM slurry exhibits an obvious shear thinning behavior and a good shape fidelity. The measured dynamic yield stress, final viscosity and initial storage modulus of the GM slurry are as high as 420.73 Pa, 7.29 Pa s and 273.86 kPa, respectively. Meanwhile, the GM slurry presents an adequate initial setting time of 68 min compared with a printing time of 14 min. In addition, the GM sample prepared by 3DR has a high compressive strength of 64.96?±?5.98 MPa and a bending strength of 15.24?±?1.58 MPa. These mechanical strengths are comparable with those of the GM and pure gypsum plaster sample prepared by traditional molding. Generally, the 3DR of GM is a promising method to improve the mechanical strength of printed gypsum products and presents great application prospects in the building of complex large-scale structures. 相似文献