The Innovative Design of Deep In Situ Pressure Retained Coring Based on Magnetic Field Trigger Controller

Figure 14

Magnetic flux density norm nephogram of the valve cover when the valve seat consists of eight identical shape tile magnets. (a) Scheme 10. (b) Scheme 11. (c) Scheme 12. (d) Scheme 13. (e) Scheme 14. (f) Scheme 15.

(a)

(b)

(c)

(d)

(e)

(f)