Alison Behre Flatau
Engineers in Ames, IA
License number
Utah 168275-2202
Issued Date
Mar 1, 1985
Expiration Date
Apr 30, 1992
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Ames, IA
Personal information
See more information about Alison Behre Flatau at radaris.comName
Address
Phone
916 Gaskill Dr, Ames, IA 50014
Professional information
See more information about Alison Behre Flatau at trustoria.com
Magnetostrictive Vibration Generation System
Magnetostrictive Vibration Generation System
US Patent:
5510660, Apr 23, 1996
Filed:
Jul 1, 1994
Appl. No.:
8/269678
Inventors:
Alison Flatau - Ames IA
David Hall - Ames IA
David Hall - Ames IA
Assignee:
Iowa State University Research Foundation, Inc. - Ames IA
International Classification:
H01L 4112
US Classification:
310 26
Abstract:
A shaker with a Terfenol-D rod actuator includes a mass coupled to both ends of the rod through a spring seat, a spring seat/adjuster and a spring washer. The actuator is mounted inside a cylindrical coil, which in turn is mounted inside a cylindrical permanent magnet, which in turn is mounted inside a cylindrical housing. An electrical drive system provides a predetermined excitation signal to the coil to cause the rod to vibrate under the influence of the magnetic field generated by the coil. One embodiment features a vibrating mass on one end of the rod. An implantable shaker includes a seal to leak-proof the shaker and a coating of Biomer. TM. The implantable shaker can be implanted in an animal to test tissue response to certain vibrations. According to another embodiment, the Terfenol-D rod actuator is held in place on one end with a pre-stress adjusting screw, which is threaded into the end of the housing and fixed in place with a jam nut. In all embodiments, a spring base is seated on one end of the rod actuator and forms an annular coaxial air gap between it and a spring seat, so that the air gap remains constant when the rod actuator vibrates and the spring base moves coaxially with respect to the spring seat.
Magnetostrictive Vibration Generation System
Magnetostrictive Vibration Generation System
US Patent:
5406153, Apr 11, 1995
Filed:
Jun 19, 1992
Appl. No.:
7/901534
Inventors:
Alison Flatau - Ames IA
David Hall - Ames IA
David Hall - Ames IA
Assignee:
Iowa State University Research Foundation, Inc. - Ames IA
International Classification:
H01L 4112
US Classification:
310 26
Abstract:
A shaker with a Terfenol-D rod actuator includes a mass coupled to both ends of the rod through a spring seat, a spring seat/adjuster and a spring washer. The actuator is mounted inside a cylindrical coil, which in turn is mounted inside a cylindrical permanent magnet, which in turn is mounted inside a cylindrical housing. An electrical drive system provides a predetermined excitation signal to the coil to cause the rod to vibrate under the influence of the magnetic field generated by the coil. One embodiment features a vibrating mass on one end of the rod. An implantable shaker includes a seal to leak-proof the shaker and a coating of Biomer. TM. The implantable shaker can be implanted in an animal to test tissue response to certain vibrations. According to another embodiment, the Terfenol-D rod actuator is held in place on one end with a pre-stress adjusting screw, which is threaded into the end of the housing and fixed in place with a jam nut. In all embodiments, a spring base is seated on one end of the rod actuator and forms an annular coaxial air gap between it and a spring seat, so that the air gap remains constant when the rod actuator vibrates and the spring base moves coaxially with respect to the spring seat.