Can Quantum Technology gravity be combined with other (non QT) geophysical instrumentation to set constraints for gravity inversion?

量子技术重力能否与其他（非 QT）地球物理仪器相结合来设置重力反演的约束？

• 批准号: 1820845
• 金额: --
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1820845
• 关键词: Quantum; Technology; gravity; combined; other

Understanding what is buried in the ground and what is the condition of the ground (soft areas, low density) is vitally important to deliver safe and in budget construction projects,such as HS2 and Crossrail, and reduce the risk due to buried hazards such as mineshafts. Several different technologies exist to see through the ground, but many of these rely on transmitting an electromagnetic wave through the ground which is then reflected off a buried object, with the reflected signal received at the ground surface. However, the ground, especially wet clay, can make it really difficult to see anything deeper than a few centimetres. Therefore, an alternative technology such as micro-gravity needs to be utilised. This technology measures the gravitational field of the subsurface by measuring density variations, but existing sensors are affected by the density of surrounding buildings or features, vibration from traffic and wind and ocean tides, to name but a few. This project will investigate the use of multiple sensors including resistivity and/or seismic to constrain inversion techniques, thereby increasing the confidence in the results. The focus will be on assessing the benefits other geophysical technologies can provide for gravity inversion. The project will combine computer modelling with field trials (or large-scale laboratory trials) to assess the benefits of the multi-sensor approach. The work will include working closely with the geophysics industry as well as the British Geological Survey. There will also be close collaboration with the QT Hub in Sensors and Metrology (http://www.birmingham.ac.uk/generic/quantum/index.aspx) led by Birmingham who are developing a novel Quantum Technology Sensor, which promises to have a higher resolution and stability compared with traditional gravity sensors.

了解地下埋有什么以及地面的状况（软土区、低密度）对于交付安全和预算内的建筑项目（如HS 2和Crossrail）以及降低因矿井等埋有危险的风险至关重要。有几种不同的技术可以穿透地面，但其中许多技术都依赖于通过地面发射电磁波，然后从地下物体反射，反射信号在地面接收。然而，地面，尤其是潮湿的粘土，很难看到几厘米深的东西。因此，需要利用微重力等替代技术。这项技术通过测量密度变化来测量地下的重力场，但现有的传感器会受到周围建筑物或特征的密度、交通、风和海洋潮汐的振动等因素的影响。该项目将研究使用多个传感器，包括电阻率和/或地震约束反演技术，从而提高结果的置信度。重点将是评估其他地球物理技术可以为重力反演提供的好处。该项目将把联合收割机计算机建模与实地试验（或大规模实验室试验）相结合，以评估多传感器方法的好处。这项工作将包括与地球物理行业以及英国地质调查局密切合作。还将与伯明翰领导的传感器和计量学QT Hub（http：//www.birmingham.ac.uk/generic/quantum/index.aspx）密切合作，他们正在开发一种新型的量子技术传感器，与传统的重力传感器相比，该传感器具有更高的分辨率和稳定性。