SBIR Phase I: A Sensitive Integrated Multi-Speckle Laser Interferometer for Industrial Applications

这个小型企业创新研究第一阶段项目描述了一种创新的方法，用于开发工业环境中应用的高灵敏度激光超声波接收器。将经典参考光束干涉仪的高灵敏度与有效克服由粗糙表面反射产生的散斑光引起的限制的能力相结合，将使该干涉仪非常适合于需要低成本、灵敏和坚固的接收器的苛刻工业应用。 由于所提出的干涉仪利用了电子封装中当前最先进技术的高集成度，因此可以使系统非常紧凑。这种超声波接收器的坚固性、高灵敏度和低成本将使基于激光的超声波检测成为一种具有成本效益的解决方案。这种测量系统的商业市场是非常广阔的NDT市场。更具体地说，这种激光超声波接收器的目标是过程控制和在役检测应用，在这些应用中，非常需要能够承受工厂苛刻环境的可靠和低成本检测系统。

This Small Business Innovation Research Phase I project describes an innovative approach for development of a high sensitivity laser ultrasonic receiver for applications in industrial environments. Combining the high sensitivity of classic reference beam interferometer with the ability to efficiently overcome the limitation caused by the speckle light generated from the reflection from rough surface will make this interferometer well suited for demanding industrial applications where a low cost, sensitive and rugged receiver is needed. Because the proposed interferometer takes advantage of the high integration level of current state-of-the-art in electronic packaging, the system can be made very compact. The robustness, high sensitivity and lower cost of this ultrasonic receiver will enable laser based ultrasonic inspection to become a cost effective solution.The commercial market for this measurement system is the very broad NDT market. More specifically, this laser ultrasonic receiver is targeting process control and in-service inspection applications where there is a very high need for reliable and low cost inspection systems capable of withstanding the demanding environment of factories.