TY - JOUR
T1 - Magnetic sensor for configurable measurement of tension or elasticity with validation in animal soft tissues
AU - Singal, Kalpesh
AU - Rajamani, Rajesh
AU - Ahmadi, Mahdi
AU - Sezen, A. Serdar
AU - Bechtold, Joan E.
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2015/2/1
Y1 - 2015/2/1
N2 - This paper presents a novel Hall-effect-based magnetic sensor for handheld measurement of either elasticity or tension in soft tissues. A theoretical model is developed for the mechanical interaction of the sensor with the tissue, and conditions are established under which the separate effects of tension or elasticity can be measured. A model of the magnetic field within the sensor is developed and a technique to estimate the sensor response in the presence of multiple magnets is established. This paper then provides analytical sensor responses and compares them with experimental results obtained on synthetic materials. It is found that the sensor can measure tension values upto 100 N with a resolution of 10 N in handheld operation and elasticity of upto 0.87 MPa with a resolution of 0.02 MPa. Significant experimental characterization and statistical analysis of sensor repeatability is performed. The viability of this sensor to make tension and elasticity measurements with biological tissues is then demonstrated using turkey tendons and fresh swine tissues.
AB - This paper presents a novel Hall-effect-based magnetic sensor for handheld measurement of either elasticity or tension in soft tissues. A theoretical model is developed for the mechanical interaction of the sensor with the tissue, and conditions are established under which the separate effects of tension or elasticity can be measured. A model of the magnetic field within the sensor is developed and a technique to estimate the sensor response in the presence of multiple magnets is established. This paper then provides analytical sensor responses and compares them with experimental results obtained on synthetic materials. It is found that the sensor can measure tension values upto 100 N with a resolution of 10 N in handheld operation and elasticity of upto 0.87 MPa with a resolution of 0.02 MPa. Significant experimental characterization and statistical analysis of sensor repeatability is performed. The viability of this sensor to make tension and elasticity measurements with biological tissues is then demonstrated using turkey tendons and fresh swine tissues.
KW - Tissue tension sensor
KW - in-vivo tissue tension
KW - magnetic tissue property sensor
KW - tissue elasticity sensor
UR - http://www.scopus.com/inward/record.url?scp=84921463992&partnerID=8YFLogxK
U2 - 10.1109/TBME.2014.2357345
DO - 10.1109/TBME.2014.2357345
M3 - Article
C2 - 25222945
AN - SCOPUS:84921463992
SN - 0018-9294
VL - 62
SP - 426
EP - 437
JO - IEEE Transactions on Biomedical Engineering
JF - IEEE Transactions on Biomedical Engineering
IS - 2
M1 - 6895297
ER -