Title :
Development of a method to measure knee joint sounds
Author :
Burnham, K.A. ; Westwell, M.A. ; Perry, M.S. ; Hoffman, A.H. ; Long, R., II
Author_Institution :
Worcester Polytech. Inst., MA, USA
Abstract :
A noninvasive experiment is designed to detect and record knee sounds and isolate them from background noise. The experimental system includes the use of microphones, a differential amplifier, and a signal analyzer. Sound emitted from a normal contralateral knee is used as a control signal. Results show that the frequency spectrum from an injured knee is significantly different from the normal contralateral knee
Keywords :
acoustic variables measurement; bioacoustics; biomedical measurement; patient diagnosis; background noise; control signal; differential amplifier; experimental system; frequency spectrum; injured knee; knee disease diagnosis; knee joint sounds; measurement method; microphones; noninvasive experiment; normal knee; signal analyzer; Acoustic noise; Background noise; Differential amplifiers; Joints; Knee; Leg; Microphones; Sensor phenomena and characterization; Signal analysis; Surgery;
Conference_Titel :
Bioengineering Conference, 1991., Proceedings of the 1991 IEEE Seventeenth Annual Northeast
Conference_Location :
Hartford, CT
Print_ISBN :
0-7803-0030-0
DOI :
10.1109/NEBC.1991.154619
