A magnetic field measurement apparatus includes a plurality of
magnetometers each having SQUID's and three detection coils, one of which
detects each of three orthogonal directional magnetic field components
(B.sub.x, B.sub.y, B.sub.z) of a magnetic field generated from a subject
to be inspected, a display which displays time variation of waveforms of
the magnitude (√(B.sub.x.sup.2 +B.sub.y.sup.2 +B.sub.z.sup.2)) of
magnetic field synthesized by square sum of each of the three orthogonal
directional magnetic field components of the magnetic field generated from
the subject to be inspected, a holder for holding a Dewar's vessel for
arranging magnetometers therein, and a controller for controlling a
positional relationship between the subject to be inspected and the
Dewar's vessel. Accurate time variation of the magnetic field generated
from the subject to be inspected can be detected without influence of
positional change of the subject to be inspected, by simultaneously
measuring each of the three orthogonal directional magnetic field
components (B.sub.x, B.sub.y, B.sub.z) of the magnetic field generated
from current sources in the subject to be inspected.
Îια ÏÏ ÏÎºÎµÏ Î® μÎÏÏηÏÎ·Ï Î¼Î±Î³Î½Î·ÏικÏν ÏεδίÏν ÏεÏιλαμβάνει μια ÏολλαÏλÏÏηÏα ÏÏν μαγνηÏομÎÏÏÏν κάθε μια ÏÎ¿Ï ÎÏει ÎÎÎÎÎÎΡÎÎÎ¥ και ÏÏÎµÎ¹Ï ÏÏείÏÎµÏ Î±Î½Î¯ÏÎ½ÎµÏ ÏηÏ, Îνα αÏÏ Ïα οÏοία ανιÏνεÏει κάθε Îνα αÏÏ ÏÏία οÏθογÏνια καÏÎµÏ Î¸Ï Î½Ïικά ÏμήμαÏα μαγνηÏικÏν ÏεδίÏν (B.sub.x, B.sub.y, B.sub.z) ενÏÏ Î¼Î±Î³Î½Î·ÏÎ¹ÎºÎ¿Ï ÏÎµÎ´Î¯Î¿Ï ÏÎ¿Ï ÏαÏάγεÏαι αÏÏ Îνα θÎμα ÏÎ¿Ï ÎµÏιθεÏÏείÏαι, μια εÏίδειξη ÏÎ¿Ï ÎµÏιδεικνÏει Ïη ÏÏονική ÏαÏαλλαγή ÏÏν ÎºÏ Î¼Î±ÏοειδÏν ÏÎ¿Ï Î¼ÎµÎ³ÎÎ¸Î¿Ï Ï (√(B.sub.x.sup.2 + B.sub.y.sup.2 + B.sub.z.sup.2)) ÏÎ¿Ï Î¼Î±Î³Î½Î·ÏÎ¹ÎºÎ¿Ï ÏÎµÎ´Î¯Î¿Ï ÏÎ¿Ï ÏÏ Î½ÏίθεÏαι αÏÏ Ïο ÏεÏÏαγÏÎ½Î¹ÎºÏ ÏοÏÏ ÎºÎ¬Î¸Îµ Îνα αÏÏ Ïα ÏÏία οÏθογÏνια καÏÎµÏ Î¸Ï Î½Ïικά ÏμήμαÏα μαγνηÏικÏν ÏεδίÏν ÏÎ¿Ï Î¼Î±Î³Î½Î·ÏÎ¹ÎºÎ¿Ï ÏÎµÎ´Î¯Î¿Ï ÏÎ¿Ï ÏαÏάγεÏαι αÏÏ Ïο θÎμα ÏÎ¿Ï ÎµÏιθεÏÏοÏνÏαι, Îναν κάÏοÏο για Ïο κÏάÏημα ÏÎ¿Ï ÏκάÏÎ¿Ï Ï ÎµÎ½ÏÏ ÏκεÏÎ¿Ï ÎεÏÎ±Ï Î³Î¹Î± να ÏακÏοÏοιήÏει Ïα μαγνηÏÏμεÏÏα εκεί μÎÏα, και Îναν ελεγκÏή για Ïον ÎλεγÏο Î¼Î¹Î±Ï Î¸ÎµÏÎ¹Î±ÎºÎ®Ï ÏÏÎÏÎ·Ï Î¼ÎµÏÎ±Î¾Ï ÏÎ¿Ï Î¸ÎμαÏÎ¿Ï ÏÎ¿Ï ÎµÏιθεÏÏείÏαι ΠακÏÎ¹Î²Î®Ï ÏÏονική ÏαÏαλλαγή ÏÎ¿Ï Î¼Î±Î³Î½Î·ÏÎ¹ÎºÎ¿Ï ÏÎµÎ´Î¯Î¿Ï ÏÎ¿Ï ÏαÏάγεÏαι αÏÏ Ïο θÎμα ÏÎ¿Ï ÎµÏιθεÏÏείÏαι μÏοÏεί να ανιÏÎ½ÎµÏ Î¸ÎµÎ¯ ÏÏÏÎ¯Ï ÎµÏιÏÏοή ÏÎ·Ï Î¸ÎµÏÎ¹Î±ÎºÎ®Ï Î±Î»Î»Î±Î³Î®Ï ÏÎ¿Ï Î¸ÎμαÏÎ¿Ï ÏÎ¿Ï ÎµÏιθεÏÏείÏαι, με ÏÎ±Ï ÏÏÏÏονα να μεÏÏήÏει κάθε Îνα αÏÏ Ïα ÏÏία οÏθογÏνια καÏÎµÏ Î¸Ï Î½Ïικά ÏμήμαÏα μαγνηÏικÏν ÏεδίÏν (B.sub.x, B.sub.y, B.sub.z) ÏÎ¿Ï Î¼Î±Î³Î½Î·ÏÎ¹ÎºÎ¿Ï ÏÎµÎ´Î¯Î¿Ï ÏÎ¿Ï ÏαÏάγεÏαι αÏÏ ÏÎ¹Ï ÏÏÎÏÎ¿Ï ÏÎµÏ ÏηγÎÏ ÏÏο θÎμα ÏÎ¿Ï ÎµÏιθεÏÏείÏαι.