Professor Invents Device to Hear Crunchy Knees From: Medical Design Technology - 05/23/2016 Research engineers at the Georgia Institute of Technology are developing a knee band with microphones and vibration sensors to listen to and measure the sounds inside the joint. It could lead to a future device to help orthopedic specialists assess damage after an injury and track the progress of recovery. The acoustic device could lead to inexpensive, wearable monitors, which could benefit athletes who have overburdened their knees, and elderly patients who have slipped and fallen. The researchers combined microphones with piezoelectric film. The film is a hypersensitive vibration sensor and collects the best sound, but it is very sensitive to interference. The microphones placed against the skin make for an ample backup and for a more practical device. Read the entire article and view a video (1:24) at: http://www.mdtmag.com/news/2016/05/professor-invents-device-hear-crunchy-knees Links: Novel Methods for Sensing Acoustical Emissions from the Knee for Wearable Joint Health Assessment http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7435308&filter%3DAND%28p_IS_Number%3A4359967%29 Omer Inan https://www.ece.gatech.edu/faculty-staff-directory/omer-t-inan