@conference {tomizuka2008sensing, title = {Sensing rich drive trains for modern mechatronic systems: second year progress report}, booktitle = {Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems}, volume = {6932}, year = {2008}, publisher = {International Society for Optics and Photonics}, organization = {International Society for Optics and Photonics}, author = {Tomizuka, M and Wang, Chun-Chih and Jeon, Soo and Cheng, Haifei} }