SBIR Phase II: New Family of Inexpensive, Broad Band Seismometers

小行星9423991 这个小型企业创新研究第二阶段项目涉及基于分子电子学原理的新型地震仪的研究和开发。 由于缺乏低成本、高性能、便携式、坚固耐用、易于安装、宽频带的仪器，阻碍了地震学的发展。 该项目旨在填补这一空白。 在第一阶段，以前的研究人员，包括这些调查人员遇到的问题，已经克服，并建立了概念原型。 现场试验表明，STS-S地震仪在记录远震方面具有非常密切的相关性。 第二阶段的理论和实验工作将集中在所有主要地震计特性的优化上：传递函数、自噪声、换能器系数、温度稳定性以及可制造性，同时保持低成本。 每个原型都将在美国的不同地点进行广泛的实验室和现场测试，最终目标是实现三个地震计版本：基本（噪声200-400 nm/s，0.03-5 Hz波段）;有限波段高级（20-40 nm/s，0.3-25 Hz）;宽带高级（小于75 nm/s，0.016-5 Hz）。 将特别注意开发用于现场应用的扩大温度范围的仪器。 将为先进的地震仪型号开发一个内置磁流体动力学校准器。 将开发一个可选的基于PC的多通道可编程地震数据采集系统，该系统具有板上实时保持和抗混叠滤波功能。 为了便利和加快对新开发的传感器和地震仪的评价，将建造一个廉价的校准平台。

9423991 Abramovich This Small Business Innovation Research Phase II project involves the research and development of new seismometers based on principles of molecular electronics. The progress of seismology has been hampered by the lack of low cost, high performance, portable, rugged, easy to install, broad frequency band instruments. This project is aimed at filling this void. In Phase I, problems encountered by previous researchers, including these investigators, have been overcome, and conceptual prototypes were built. Field tests showed very close correlation with STS-s seismometers in recording remote earthquakes. Phase II theoretical and experimental effort will be focused on the optimization of all major seismometer characteristics: transfer function, self-noise, transducer coefficient, temperature stability, as well as manufacturability, while maintaining the low cost. Every prototype will be subjected to extensive laboratory and field testing at various locations in the U.S. The ultimate goal is the implementation of three seismometer versions: Basic (noise 200-400 nm/s, 0.03-5 Hz band); Limited Band Advanced (20-40 nm/s, 0.3-25 Hz); Broad Band Advanced (less than 75 nm/s, 0.016-5 Hz). Special attention will be devoted to the development of an expanded temperature range instrument for field applications. A built-in magnetohydrodynamic calibrator will be developed for the advanced seismometer versions. An optional PC-based multichannel programmable Seismic Data Acquisition system will be developed with on-board real-time keeping and anti-aliasing filtering. In order to facilitate and expedite the evaluation of newly developed transducers and seismometers, an inexpensive calibration platform will be built.