公开(公告)号：WO9825437A3

公开(公告)日：1998-10-01

申请号：PCT/US9723159

申请日：1997-12-04

Applicant: INPUT OUTPUT INC

Inventor： CHANG WIN H ,  BADGER ALGERNON S ,  SIMENSKY BERNARD

IPC: G01V1/18 ,  G10K9/122 ,  H01L41/22

CPC classification number: G01V1/186 ,  G10K9/122

Abstract: Method of making an acoustic transducer (20) includes the steps of: a) assembling a previously polarized crystal (36) with a pair of solid circular metal plates (24, 28) positioned to sandwich the piezoelectric ceramic crystal (36) between them, wherein an epoxy adhesive is interposed between the metal plates (24, 28) and the piezoelectric ceramic crystal (36) to form an acoustic transducer assembly (20); b) curing the acoustic transducer assembly (20) at temperatures less than 150 degrees centigrade; c) encapsulating the acoustic transducer assembly (20) in a flexible case with a polyurethane potting sealant to form a potted assembly; d) curing the potted assembly at temperatures less than 150 degrees centigrade to form a hydrophone.

公开(公告)号：NO981444A

公开(公告)日：1998-06-02

申请号：NO981444

申请日：1998-03-31

Applicant: INPUT OUTPUT INC

Inventor： CHANG WIN H ,  BADGER ALGERNON S ,  SIMENSKY BERNARD

IPC: G01H11/08 ,  G01V1/18 ,  G01V

CPC classification number: G01V1/186 ,  G01H11/08

公开(公告)号：AU5936799A

公开(公告)日：2000-02-17

申请号：AU5936799

申请日：1999-11-11

Applicant: INPUT OUTPUT INC

Inventor： CHANG WIN H ,  BADGER ALGERNON S ,  SIMENSKY BERNARD

IPC: H01L41/22 ,  H04R17/00

公开(公告)号：NO981444L

公开(公告)日：1998-06-02

申请号：NO981444

申请日：1998-03-31

Applicant: INPUT OUTPUT INC

Inventor： CHANG WIN H ,  BADGER ALGERNON S ,  SIMENSKY BERNARD

IPC: G01H11/08 ,  G01V1/18 ,  G01V

Abstract: An acoustic transducer assembly includes a piezoelectric ceramic crystal. The assembly also includes a pair of solid circular metal plates positioned to sandwich the piezoelectric ceramic crystal between them, wherein each of the metal plates comprises: (i) an outer rim circling a concave portion formed in a first surface of the metal plate, the first surface oriented toward the piezoelectric ceramic crystal; and (ii) an epoxy wicking barrier formed in the first surface, adjacent to the outer rim. The assembly also includes an epoxy adhesive interposed between the metal plates and the piezoelectric ceramic crystal, wherein the outer rim of each plate is bonded to the piezoelectric ceramic crystal by the epoxy adhesive, the pair of plates thus forming a cavity between them. The assembly also includes a flexing stop attached to each first surface.

公开(公告)号：AU747855B2

公开(公告)日：2002-05-23

申请号：AU5936799

申请日：1999-11-11

Applicant: INPUT OUTPUT INC

Inventor： CHANG WIN H ,  BADGER ALGERNON S ,  SIMENSKY BERNARD

IPC: H01L41/22 ,  H04R17/00

公开(公告)号：AU714632B2

公开(公告)日：2000-01-06

申请号：AU7389296

申请日：1996-10-02

Applicant: INPUT OUTPUT INC

Inventor： CHANG WIN H ,  BADGER ALGERNON S ,  SIMENSKY BERNARD

IPC: G01H11/08 ,  G01V1/18 ,  G01V1/38

Abstract: An acoustic transducer assembly includes a piezoelectric ceramic crystal. The assembly also includes a pair of solid circular metal plates positioned to sandwich the piezoelectric ceramic crystal between them, wherein each of the metal plates comprises: (i) an outer rim circling a concave portion formed in a first surface of the metal plate, the first surface oriented toward the piezoelectric ceramic crystal; and (ii) an epoxy wicking barrier formed in the first surface, adjacent to the outer rim. The assembly also includes an epoxy adhesive interposed between the metal plates and the piezoelectric ceramic crystal, wherein the outer rim of each plate is bonded to the piezoelectric ceramic crystal by the epoxy adhesive, the pair of plates thus forming a cavity between them. The assembly also includes a flexing stop attached to each first surface.

公开(公告)号：NO981444D0

公开(公告)日：1998-03-31

申请号：NO981444

申请日：1998-03-31

Applicant: INPUT OUTPUT INC

Inventor： CHANG WIN H ,  BADGER ALGERNON S ,  SIMENSKY BERNARD

IPC: G01H11/08 ,  G01V1/18 ,  G01V

Abstract: An acoustic transducer assembly includes a piezoelectric ceramic crystal. The assembly also includes a pair of solid circular metal plates positioned to sandwich the piezoelectric ceramic crystal between them, wherein each of the metal plates comprises: (i) an outer rim circling a concave portion formed in a first surface of the metal plate, the first surface oriented toward the piezoelectric ceramic crystal; and (ii) an epoxy wicking barrier formed in the first surface, adjacent to the outer rim. The assembly also includes an epoxy adhesive interposed between the metal plates and the piezoelectric ceramic crystal, wherein the outer rim of each plate is bonded to the piezoelectric ceramic crystal by the epoxy adhesive, the pair of plates thus forming a cavity between them. The assembly also includes a flexing stop attached to each first surface.

公开(公告)号：EP0858721A4

公开(公告)日：2001-08-29

申请号：EP96936181

申请日：1996-10-02

Applicant: INPUT OUTPUT INC

Inventor： CHANG WIN H ,  BADGER ALGERNON S ,  SIMENSKY BERNARD

IPC: G01H11/08 ,  G01V1/18 ,  H04R17/00 ,  B06B1/06

CPC classification number: G01V1/186 ,  G01H11/08

Abstract: An acoustic transducer assembly includes a piezoelectric ceramic crystal. The assembly also includes a pair of solid circular metal plates positioned to sandwich the piezoelectric ceramic crystal between them, wherein each of the metal plates comprises: (i) an outer rim circling a concave portion formed in a first surface of the metal plate, the first surface oriented toward the piezoelectric ceramic crystal; and (ii) an epoxy wicking barrier formed in the first surface, adjacent to the outer rim. The assembly also includes an epoxy adhesive interposed between the metal plates and the piezoelectric ceramic crystal, wherein the outer rim of each plate is bonded to the piezoelectric ceramic crystal by the epoxy adhesive, the pair of plates thus forming a cavity between them. The assembly also includes a flexing stop attached to each first surface.