Development of Electromechanical Transducers for Gravita- tional Radiation Detectors and Quantum Measurement Investigations (Physics)

当前一代共振质量引力辐射探测器的灵敏度受到机电换能器的限制，机电换能器将天线振动转换为电信号，可以分析该电信号来搜索候选引力波事件。博科教授正在开发一种超导-射频换能器，以努力提高现有引力辐射天线的灵敏度。同样的换能器方案可以用来连续监测一个非常小但宏观的机械谐振器，他正在努力实现一个灵敏度水平，在这个水平上，人们可以探索弱力检测的量子力学极限。这些实验结果可能会对量子测量理论产生深远的影响，并将对量子测量理论向超低噪声测量的实际应用的发展起到指导作用。

The present generation of resonant mass gravitational radiation detectors are limited in sensitivity by the electromechanical transducers which convert the antenna vibration to an electrical signal which may be analyzed to search for candidate gravitational wave events. Professor Bocko is developing a superconducting - radio frequency transducer in an effort to improve the sensitivity of existing gravitational radiation antennae. The same transducer scheme may be used to continuously monitor a very small, but macroscopic, mechanical resonator he is working to achieve a sensitivity level at which one may explore the quantum mechanical limits of weak force detection. The results of these experiments may have a profound influence on quantum measurement theory and will serve as a guide in the development of the practical applicator of quantum measurement theory to ultra-low noise measurements.