公开(公告)号：EP0173977A2

公开(公告)日：1986-03-12

申请号：EP85110942.1

申请日：1985-08-30

Applicant: HONEYWELL INC.

Inventor： Ballinger, Dale O. ,  Chynoweth, William R. ,  Wade, Gerald J.

IPC: G11B5/49 ,  G11B5/31 ,  G11B5/127

CPC classification number: G11B5/4907 ,  G11B5/31

Abstract: A magnetostrictive record and playback head is disclosed which utilizes an acoustic wave (23) travelling along the surface (11) of piezoelectric material (10) so as to distort the surface thereof and to change the stress in a layer of magnetostrictive material (30, 50) along that surface at a point which depends upon the position of the travelling acoustic wave. At the point where the magnetostrictive material (30, 50) is changed, the material is magnetic so that a pulse in an adjacent conductor (40) will cause a flux to form that can deposit a magnetic signal on adjacent magnetic tape (70) (Fig. 1).

Abstract translation: 公开了一种磁致伸缩记录和重放头，其利用沿着压电材料表面行进的声波，以使其表面变形并改变沿着该表面的磁致伸缩材料层中的应力，该点取决于 行波声波。 在磁致伸缩材料被改变的地方，材料是磁性的，使得相邻导体中的脉冲将导致形成磁通以在相邻磁带上沉积磁信号。

公开(公告)号：EP0173977A3

公开(公告)日：1987-05-27

申请号：EP85110942

申请日：1985-08-30

Applicant: HONEYWELL INC.

Inventor： Ballinger, Dale O. ,  Chynoweth, William R. ,  Wade, Gerald J.

IPC: G11B05/127

CPC classification number: G11B5/4907 ,  G11B5/31

Abstract: A magnetostrictive record and playback head is disclosed which utilizes an acoustic wave (23) travelling along the surface (11) of piezoelectric material (10) so as to distort the surface thereof and to change the stress in a layer of magnetostrictive material (30, 50) along that surface at a point which depends upon the position of the travelling acoustic wave. At the point where the magnetostrictive material (30, 50) is changed, the material is magnetic so that a pulse in an adjacent conductor (40) will cause a flux to form that can deposit a magnetic signal on adjacent magnetic tape (70) (Fig. 1).

Abstract translation: 公开了一种磁致伸缩记录和重放头，其利用沿着压电材料表面行进的声波，以使其表面变形并改变沿着该表面的磁致伸缩材料层中的应力，该点取决于 行波声波。 在磁致伸缩材料被改变的地方，材料是磁性的，使得相邻导体中的脉冲将导致形成磁通以在相邻磁带上沉积磁信号。

公开(公告)号：EP0045145A3

公开(公告)日：1982-02-17

申请号：EP81303131

申请日：1981-07-09

Applicant: HONEYWELL INC.

Inventor： Ballinger, Dale O.

IPC: G10K11/00

CPC classification number: G10K11/002

Abstract: An acoustic transducer includes a housing (18) having means (22) for dispersing internal reflections within the housing to minimize the incidence of such internally reflected acoustic pulses on the transducer (14) itself, thereby avoiding the generation of spurious electrical signals for transmission to the translating circuitry. In one embodiment the operating end of the housing includes stepped annular surfaces (24) which provide sharp angles of incidence to the internal reflections to direct them away from the transducer (14).