Fig. 1. Overall structure of magnetoresistive time-grating displacement sensor based on spherical array

Fig. 2. Variation of magnetic medium at induction windings with displacement x

Fig. 3. Schematic diagram of sensor displacement measurement

Fig. 4. Signal output of the moving ruler at different spatial positions

Fig. 5. Measurement errors and error spectrum with the conditions r_e=12.0 mm and different r_i

Fig. 6. Measurement errors and error spectrum with the conditions r_e=12.5 mm and different r_i

Fig. 7. Measurement errors and error spectrum with the conditions r_e=13.0 mm and different r_i

Fig. 8. Excitation windings and induction windings of sensor prototype

Fig. 9. Experiment platform

Fig. 10. Structure diagram of the experimental platform

Fig. 11. Actual measurement errors and error spectrum with the conditions r_e=12.0 mm and different r_i

Fig. 12. Actual measurement errors and error spectrum with the conditions r_e=12.5 mm and different r_i

Fig. 13. Actual measurement errors and error spectrum with the conditions r_e=13.0 mm and different r_i

Fig. 14. Stability error curve of sensor

Fig. 15. Measurement error curve within a pitch

Fig. 16. Measurement error spectrum within a pitch

Fig. 17. Experimental error of repeatability within a pitch

Fig. 18. Measurement error curves within full range of sensor

Fig. 19. Measurement error spectrum within full range of sensor

Fig. 20. Resolution test results of sensor