Metallic glass alloys for mechanically resonant marker surveillance systems
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0938225
(1997-09-26)
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발명자
/ 주소 |
- Hasegawa Ryusuke
- Martis Ronald
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대리인 / 주소 |
Ernest D. Buff & AssociatesBuff
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인용정보 |
피인용 횟수 :
8 인용 특허 :
5 |
초록
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A glassy metal alloy consists essentially of the formula Fe.sub.a Co.sub.b Ni.sub.c M.sub.d B.sub.e Si.sub.f C.sub.g, where "M" is at least one member selected from the group consisting of molybdenum, chromium and manganese, "a-g" are in atom percent, "a" ranges from about 19 to about 29, "b" ranges
A glassy metal alloy consists essentially of the formula Fe.sub.a Co.sub.b Ni.sub.c M.sub.d B.sub.e Si.sub.f C.sub.g, where "M" is at least one member selected from the group consisting of molybdenum, chromium and manganese, "a-g" are in atom percent, "a" ranges from about 19 to about 29, "b" ranges from about 16 to about 42, "c" ranges from about 20 to about 40, "d" ranges from about 0 to about 3, "e" ranges from about 10 to about 20, "f" ranges from about 0 to about 9 and "g" ranges from about 0 to about 3. The alloy can be cast by rapid solidification into ribbon, annealed to enhance magnetic properties, and formed into a marker that is especially suited for use in magneto-mechanically actuated article surveillance systems. Advantageously, the marker is characterized by substantially linear magnetization response to an applied magnetic field in the frequency regime wherein harmonic marker systems operate magnetically. Voltage amplitudes detected for the marker are high, and interference between surveillance systems based on mechanical resonance and harmonic re-radiance is virtually eliminated.
대표청구항
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[ What is claimed is:] [1.] A magnetic metallic glass alloy that is at least about 70% glassy, has been annealed to enhance magnetic properties, and has a composition consisting essentially of the formula Fe.sub.a Co.sub.b Ni.sub.c M.sub.d B.sub.e Si.sub.f C.sub.g, where M is at least one member sel
[ What is claimed is:] [1.] A magnetic metallic glass alloy that is at least about 70% glassy, has been annealed to enhance magnetic properties, and has a composition consisting essentially of the formula Fe.sub.a Co.sub.b Ni.sub.c M.sub.d B.sub.e Si.sub.f C.sub.g, where M is at least one member selected from the group consisting of molybdenum, chromium and manganese, "a", "b", "c", "d", "e", "f" and "g" are in atom percent, "a" ranges from about 19 to about 29, "b" ranges from about 16 to about 42 and "c" ranges from about 20 to about 40, "d" ranges from about 0 to about 3, "e" ranges from about 10 to about 20, "f" ranges from about 0 to about 9 and "g" ranges from about 0 to about 3, said alloy having the form of a strip that exhibits mechanical resonance and has a substantially linear magnetization behavior up to a minimum applied field of about 8 Oe.
이 특허에 인용된 특허 (5)
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Gregor John A. (Basking Ridge NJ) Sellers Gregory J. (Richmond VA), Amorphous antipilferage marker.
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Anderson ; III Philip M. (Chatham NJ) Kearney James E. (New Hyde Park NY) Bretts Gerald R. (Livingston NJ), Coded surveillance system having magnetomechanical marker.
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Strom-Olsen John O. (Montreal CAX) Rudkowski Piotr Z. (Pierrfond CAX), Ferromagnetic alloys with high nickel content and high permeability.
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Hasegawa Ryusuke (Morristown NJ) Chou Chong-Ping (Mt. Arlington NJ), Metallic glasses having a combination of high permeability, low magnetostriction, low ac core loss and high thermal stab.
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Anderson ; III Philip M. (Chatham NJ) Bretts Gerald R. (Livingston NJ) Kearney James E. (New Hyde Park NY), Surveillance system having magnetomechanical marker.
이 특허를 인용한 특허 (8)
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Chandramowle, Gopal; Zirk, Randy, Enhanced signal amplitude in acoustic-magnetomechanical EAS marker.
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Liu, Nen-Chin, Enhanced signal amplitude in acoustic-magnetomechanical EAS marker.
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Zirk, Randy J.; Chandramowle, Gopal; Liu, Nen-Chin, Enhanced signal amplitude in acoustic-magnetomechanical EAS marker.
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Zirk, Randy; Chandramowle, Gopal; Liu, Nen-Chin, Enhanced signal amplitude in acoustic-magnetomechanical EAS marker.
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Hasegawa, Ryusuke; Martis, Ronald Joseph, Magnetomechanical sensor element and application thereof in electronic article surveillance and detection system.
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Hasegawa,Ryusuke, Marker for coded electronic article identification system.
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Hasegawa, Ryusuke; Webb, John Paul; Chestnut, Auburn Anthony; Hill, Larry; Martis, Ronald Joseph, Marker for mechanically resonant article surveillance system.
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Hasegawa,Ryusuke; Webb,John Paul; Chestnut,Auburn Anthony; Hill,Larry; Martis,Ronald Joseph, Marker for mechanically resonant article surveillance system.
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