Method for determining force characteristic of a device for magnetically holding workpieces

摘要

PCT No. PCT/SU85/00015 Sec. 371 Date Oct. 7, 1986 Sec. 102(e) Date Oct. 7, 1986 PCT Filed Feb. 13, 1985 PCT Pub. No. WO86/04851 PCT Pub. Date Aug. 28, 1986.A method for determining force characteristic of a device for magnetically holding workpieces placed on a top plate (3) of the device, wherein a workpiece (1) cooperating with a source of magnetic field of the device is connected to a force pick-up (2) and is caused to move along the top plate (3), along a test line (4). The source of magnetic field remains permanently energized during the tests, the workpiece (1) is placed in parallel with the top plate (3) with a clearance which depends on sensitivity of the force pick-up (2), and is caused to move along the test line (4) continually while maintaining the amount of the clearance substantially unchanged.