| abstract |
Provided is a magnetic field application device capable of applying a magnetic field to an object for a sufficient amount of time. A first magnetic circuit that is one of two magnetic circuits provided in a magnetic field application device is provided with two magnetic poles, a first magnetic pole (1) and a second magnetic pole (2). The first magnetic pole (1) is provided with a first yoke (11) having an arc shape in plan view, a first magnet (13) having an arc shape in plan view, and a first magnetic pole piece (15). Meanwhile, the second magnetic pole (2) is provided with a second yoke (21) having an arc shape in plan view, a second magnet (23) having an arc shape in plan view, and a first magnetic pole piece (25). The first magnetic pole piece (15) and the second magnetic pole piece (25) are disposed to face each other with a space therebetween. |