B8.4 - Characterisitics of TMR Angle Sensors

H. Yamazaki, H. Hirabayashi, N. Oyama & M. Sakai
Magnetic angle sensors are widely used for detecting the rotational angles of motors because of their non-contact operation and the fact that they are not influenced by oil sludge. We have developed and evaluated tunneling magnetoresistive (TMR) angle sensors. In this paper, the characteristics of the TMR angle sensors are described. TMR is characterized by its very high MR ratio (delta R/R). Consequently, the signal output is much higher than other magnetic sensors such as...