Abstract
A new dc magnetic type eddy current speed sensor is presented using an amorphous core of zero-magnetostriction and sharp rectangular B-H loop. In the proposed sensor, a constant dc magnetic flux passes through the surface of a moving conductor of which speed should be detected. So induced eddy currents become a pure function of the speed. The magnetized produced with the currents, which is called cross magnetization field in this paper, is detected with high sensitivity by using such an amorphous core. A zero flux method is applied to the detection and it achieves a stable and driftless sensing almost without delay. By making a slight modification, the speed is detectable even if the gap-length between the conductor and the sensor changes. Experimental results are shown.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
