公开(公告)号：WO1998021700A1

公开(公告)日：1998-05-22

申请号：PCT/US1997016374

申请日：1997-09-12

Applicant: SENSORMATIC ELECTRONICS CORPORATION

Inventor： SENSORMATIC ELECTRONICS CORPORATION ,  COPELAND, Richard, L. ,  LIAN, Ming, R.

IPC: G08B13/187

CPC classification number: G08B13/2408 ,  G08B13/2411 ,  G08B13/2434 ,  G08B13/2437 ,  G08B13/244 ,  G08B13/2442

Abstract: A two-dimensional array of magnetomechanical markers (20) is adhered to a continuous web (62). A magnetizer element (70) is scanned (74) across the web (62) to magnetize the bias elements in a group of markers (20) with a first polarity, thereby activating the group of markers. The web (62) is then advanced (68) and the magnetizer (70) is scanned across the web in an opposite direction (76) to the previous scan to magnetize the bias elements of a second group of the markers (20) with a second polarity, thereby activating the second group of markers. The web (62) is slit in a longitudinal direction to produce web-strips each carrying a column of the activated markers. The web-strips are rolled to form marker roll assemblies each having about half the bias elements magnetized with a first polarity and the remaining bias elements magnetized with an opposite polarity. The roll of activated markers forms no more than a minimal "leakage" magnetic field.

Abstract translation: 磁性机械标记（20）的二维阵列被粘附到连续的网（62）上。 磁化元件（70）穿过网（62）被扫描（74），以使第一极性的一组标记物（20）中的偏置元件磁化，从而激活该组标记。 然后将纤维网（62）推进（68），并且磁化器（70）沿着与之前的扫描相反的方向（76）扫过纸幅，以使用第二组标记（20）的偏置元件以 第二极性，从而激活第二组标记。 纤维网（62）在纵向上被切开，以产生每个带有活化标记柱的纤维网。 网带被卷起以形成标记辊组件，每个辊组件具有以第一极性磁化的约一半的偏置元件，并且以相反极性被磁化的剩余偏置元件。 激活的标记物卷形成不超过最小的“泄漏”磁场。