公开(公告)号：WO2014194140A3

公开(公告)日：2015-03-05

申请号：PCT/US2014040091

申请日：2014-05-29

Applicant: ACTIVE SIGNAL TECHNOLOGIES INC

Inventor： KOHLHAFER DENNIS JOHN

IPC: H01F7/06 ,  H02K33/18

CPC classification number: H01F7/081 ,  H01F7/02 ,  H01F7/066 ,  H01F7/122 ,  H01F7/13 ,  H01F7/1646 ,  H01H50/04 ,  H01H50/20 ,  H01H50/44 ,  H02K33/18

Abstract: Electromagnetic actuators capable of generating a symmetrical bidirectional force are disclosed. The electromagnetic actuators include a housing made of a ferromagnetic material and a shaft made of a magnetically inert material movable along an axis within the housing. In one type of actuator, captive permanent magnets are arranged on opposite interior end walls of the housing and an electromagnetic coil is mounted on a central portion of the shaft. The electromagnetic coil is capable of generating a force when energized that causes linear displacement of the shaft in either direction along its axis depending on the direction of current through the electromagnetic coil. In another type of actuator, captive electromagnetic coils are arranged on opposing inner end walls of the housing, and a permanent magnet is mounted on a central portion of the shaft. The electromagnetic coils are capable of generating a force when energized that causes linear displacement of the shaft in either direction along its axis depending on a direction of current through the electromagnetic coils.

Abstract translation: 公开了能够产生对称双向力的电磁致动器。 电磁致动器包括由铁磁材料制成的壳体和由沿着壳体内的轴线移动的磁性惰性材料制成的轴。 在一种类型的致动器中，固定永磁体布置在壳体的相对的内端壁上，并且电磁线圈安装在轴的中心部分上。 电磁线圈能够产生通电时的力，这导致轴根据其通过电磁线圈的电流的方向沿其轴线沿任一方向的线性位移。 在另一种类型的致动器中，固定电磁线圈布置在壳体的相对的内端壁上，并且永磁体安装在轴的中心部分上。 电磁线圈能够在通电时产生力，这导致轴根据其通过电磁线圈的电流的方向沿其轴线沿任一方向的线性位移。

公开(公告)号：WO2008119014A3

公开(公告)日：2008-11-27

申请号：PCT/US2008058424

申请日：2008-03-27

Applicant: ACTIVE SIGNAL TECHNOLOGIES INC ,  UNIV ALFRED RES ,  BRIDGER KEITH ,  COOKE ARTHUR V ,  SCHULZE WALTER ARTHUR

Inventor： BRIDGER KEITH ,  COOKE ARTHUR V ,  SCHULZE WALTER ARTHUR

IPC: H01G4/12 ,  C04B35/462 ,  H01C7/02 ,  H01C7/04 ,  H01C7/115

CPC classification number: H01G4/1227 ,  C04B35/462 ,  C04B2235/3215 ,  C04B2235/3236 ,  C04B2235/3255 ,  C04B2235/3263 ,  C04B2235/3298 ,  C04B2235/768 ,  H01C7/025 ,  H01C7/045 ,  H01C7/115

Abstract: A ceramic dielectric composition suitable for preparing capacitors for use in high-temperature service conditions is disclosed. The ceramic material and capacitors made from it exhibit unique and heretofore unrealizable properties including low variation in capacitance with voltage up to high fields, low variation in capacitance with temperature over a broad temperature range, retained high permittivity at temperatures up to 2000C and beyond, low loss, low field-induced strain and adequate capacitance to retain performance at very low service temperatures. The material is based on sodium bismuth titanate (NBT) with selected additions of substituents and dopants to broaden and flatten its dielectric response, lower loss, lower strain, lower voltage coefficient and increase resistivity.

Abstract translation: 公开了适用于制备用于高温使用条件的电容器的陶瓷介电组合物。 由它制成的陶瓷材料和电容器表现出独特的和迄今为止不可实现的性质，包括电容随电压变化很小直到高场，在宽温度范围内电容随温度变化很小，在高达200℃和更高的温度下保持高介电常数，低 低场致应变和足够的电容以在非常低的工作温度下保持性能。 该材料基于钛酸铋钠（NBT），选择性地添加了取代基和掺杂剂，以扩大和平坦化其介电响应，降低损耗，降低应变，降低电压系数并提高电阻率。

公开(公告)号：WO2014194140A2

公开(公告)日：2014-12-04

申请号：PCT/US2014/040091

申请日：2014-05-29

Applicant: ACTIVE SIGNAL TECHNOLOGIES, INC.

Inventor： KOHLHAFER, Dennis John

IPC: H01F7/06

CPC classification number: H01F7/081 ,  H01F7/02 ,  H01F7/066 ,  H01F7/122 ,  H01F7/13 ,  H01F7/1646 ,  H01H50/04 ,  H01H50/20 ,  H01H50/44 ,  H02K33/18

Abstract: Electromagnetic actuators capable of generating a symmetrical bidirectional force are disclosed. The electromagnetic actuators include a housing made of a ferromagnetic material and a shaft made of a magnetically inert material movable along an axis within the housing. In one type of actuator, captive permanent magnets are arranged on opposite interior end walls of the housing and an electromagnetic coil is mounted on a central portion of the shaft. The electromagnetic coil is capable of generating a force when energized that causes linear displacement of the shaft in either direction along its axis depending on the direction of current through the electromagnetic coil. In another type of actuator, captive electromagnetic coils are arranged on opposing inner end walls of the housing, and a permanent magnet is mounted on a central portion of the shaft. The electromagnetic coils are capable of generating a force when energized that causes linear displacement of the shaft in either direction along its axis depending on a direction of current through the electromagnetic coils.

Abstract translation: 公开了能够产生对称双向力的电磁致动器。 电磁致动器包括由铁磁材料制成的壳体和由沿着壳体内的轴线移动的磁性惰性材料制成的轴。 在一种类型的致动器中，固定永磁体布置在壳体的相对的内端壁上，并且电磁线圈安装在轴的中心部分上。 电磁线圈能够产生通电时的力，这导致轴根据其通过电磁线圈的电流的方向沿其轴线沿任一方向的线性位移。 在另一种类型的致动器中，固定电磁线圈布置在壳体的相对的内端壁上，并且永磁体安装在轴的中心部分上。 电磁线圈能够在通电时产生力，这导致轴根据其通过电磁线圈的电流的方向沿其轴线沿任一方向的线性位移。

公开(公告)号：WO2008119014A2

公开(公告)日：2008-10-02

申请号：PCT/US2008/058424

申请日：2008-03-27

Applicant: ACTIVE SIGNAL TECHNOLOGIES, INC. ,  ALFRED UNIVERSITY ,  BRIDGER, Keith ,  COOKE, Arthur V. ,  SCHULZE, Walter Arthur

Inventor： BRIDGER, Keith ,  COOKE, Arthur V. ,  SCHULZE, Walter Arthur

IPC: H01G4/12 ,  C04B35/462 ,  H01C7/02 ,  H01C7/04 ,  H01C7/115

CPC classification number: H01G4/1227 ,  C04B35/462 ,  C04B2235/3215 ,  C04B2235/3236 ,  C04B2235/3255 ,  C04B2235/3263 ,  C04B2235/3298 ,  C04B2235/768 ,  H01C7/025 ,  H01C7/045 ,  H01C7/115

Abstract: A ceramic dielectric composition suitable for preparing capacitors for use in high-temperature service conditions is disclosed. The ceramic material and capacitors made from it exhibit unique and heretofore unrealizable properties including low variation in capacitance with voltage up to high fields, low variation in capacitance with temperature over a broad temperature range, retained high permittivity at temperatures up to 2000C and beyond, low loss, low field-induced strain and adequate capacitance to retain performance at very low service temperatures. The material is based on sodium bismuth titanate (NBT) with selected additions of substituents and dopants to broaden and flatten its dielectric response, lower loss, lower strain, lower voltage coefficient and increase resistivity.

Abstract translation: 公开了一种适用于制备用于高温使用条件的电容器的陶瓷电介质组合物。 由其制成的陶瓷材料和电容器具有独特且迄今未实现的性能，包括电容变化小到高电场的电容变化，宽温度范围内的电容变化小，在高达200℃及以下的温度下保持较高的介电常数 损耗，低场诱发应变和足够的电容，以在非常低的使用温度下保持性能。 该材料基于钛酸铋（NBT），其具有选择性添加的取代基和掺杂剂，以扩大和平坦化其介电响应，降低损耗，降低应变，降低电压系数和增加电阻率。