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公开(公告)号：US06193206B1
公开(公告)日：2001-02-27
申请号：US09121214
申请日：1998-07-23
申请人： Masashi Yasuda , Fumiaki Itojima , Masaki Tsuchiya
发明人： Masashi Yasuda , Fumiaki Itojima , Masaki Tsuchiya
IPC分类号： F16M1300
CPC分类号： F16F7/1005
摘要： By a controller 18 which receives signal input from a first sensor 16 for detecting the vibratory state of an object O to be isolated from vibration and from a second sensor 17 for detecting the vibratory state of an intermediate mass element 13, a signal is outputted to a power input portion 12 of a piezoelectric element 11 to cause a voltage variation such that the intermediate mass element 13 vibrates to cancel out the vibrations of the object O in an acting direction.
摘要翻译： 由控制器18接收从第一传感器16输入的信号，用于检测与振动隔离的物体O的振动状态，以及从用于检测中间质量元件13的振动状态的第二传感器17输出信号， 压电元件11的电力输入部分12引起电压变化，使得中间质量元件13振动以消除物体O在作用方向上的振动。
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公开(公告)号：US20060202694A1
公开(公告)日：2006-09-14
申请号：US10547295
申请日：2004-03-17
IPC分类号： G01V3/00
CPC分类号： G01R33/28
摘要： In a nuclear magnetic resonance apparatus 1A including nuclear magnetic resonance means 2 for elucidating atomic configuration and molecular structure of a substance based on a decay signal of induced electromotive force caused by resonance precession of nuclear magnetic moment induced by irradiation of electromagnetic pulses in an RF region when the substance is exposed to a strong magnetic field, and a vibration isolation mechanism 3 for suppressing vibrations, the vibration isolation mechanism 3 has an air spring 11 as an actuator, the air spring being connected to a pressurized air source 34 via an electro-pneumatic converter 25 and acting to exert a force for vibration isolation on the nuclear magnetic resonance means 2, and the vibration isolation mechanism is formed so as to be capable of active vibration isolation, and disposed away from the nuclear magnetic resonance means 2 by such a distance that the electro-pneumatic converter 25 never incurs any malfunctions or operating failures under influence of a magnetic field generated by the nuclear magnetic resonance means 2.
摘要翻译： 在核磁共振装置1A中，包括核磁共振装置2，用于根据由射频中的电磁脉冲照射引起的核磁矩的共振进动引起的感应电动势的衰减信号，阐明物质的原子构型和分子结构 当物质暴露于强磁场时的区域，以及用于抑制振动的隔振机构3，隔振机构3具有作为致动器的空气弹簧11，空气弹簧经由电加压空气源34连接 气动转换器25，并且用于在核磁共振装置2上施加用于振动隔离的力，并且隔振机构形成为能够主动隔振，并且通过这种方式远离核磁共振装置2 电 - 气转换器25不会发生任何故障或操作的距离 在由核磁共振装置2产生的磁场的影响下的故障。
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3.发明授权Method of controlling positions and vibrations and active vibration control apparatus therefor 失效控制位置和振动的方法及其主动振动控制装置
公开(公告)号：US5121898A
公开(公告)日：1992-06-16
申请号：US556483
申请日：1990-07-24
申请人： Masashi Yasuda , Fumiaki Itojima
发明人： Masashi Yasuda , Fumiaki Itojima
IPC分类号： F16F15/027 , G05D19/02
CPC分类号： F16F15/0275 , G05D19/02
摘要： A method of controlling level lateral positions of a vibration control base suspended by air springs to be returned to its standard level and lateral positions and to keep their positions by utilizing analog integration or a feedback compensation in combination thereto so as to control an air pressure or air pressures of air springs for driving the vibration control base and also controlling vertical and horizontal vibrations of the vibration control base and an apparatus for carrying out the said method.
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公开(公告)号：US07285956B2
公开(公告)日：2007-10-23
申请号：US10547295
申请日：2004-03-17
IPC分类号： G01V3/00
CPC分类号： G01R33/28
摘要： A nuclear magnetic resonance apparatus includes a nuclear magnetic resonance device for elucidating atomic configuration and molecular structure of a substance based on a decay signal of induced electromotive force caused by resonance precession of nuclear magnetic moment induced by irradiation of electro-magnetic pulses in an RF region when the substance is exposed to a strong magnetic field, and a vibration isolation mechanism for suppressing vibrations. The vibration isolation mechanism has, as an actuator, an air spring connected to a pressurized air source via an electro-pneumatic converter and acting to exert a force for vibration isolation on the nuclear magnetic resonance device. The vibration isolation mechanism is capable of active vibration isolation, and disposed away from the nuclear magnetic resonance device by such a distance that the electro-pneumatic converter never incurs any malfunctions or operating failures under influence of a magnetic field generated by the nuclear magnetic resonance device.
摘要翻译： 核磁共振装置包括：核磁共振装置，用于根据由射频区域中的电磁脉冲的照射引起的核磁矩的共振进动引起的感应电动势的衰减信号，阐明物质的原子构型和分子结构 当物质暴露于强磁场时，以及用于抑制振动的振动隔离机构。 隔振机构具有作为致动器的空气弹簧，其经由电 - 气转换器连接到加压空气源，并且用于在核磁共振装置上施加用于振动隔离的力。 振动隔离机构能够进行主动隔振，并且远离核磁共振装置离开这样的距离，使得电 - 气转换器在由核磁共振装置产生的磁场的影响下不会引起任何故障或操作故障 。
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公开(公告)号：US5180958A
公开(公告)日：1993-01-19
申请号：US680173
申请日：1991-04-03
IPC分类号： F16F15/027 , G01M7/02 , G01M7/04
CPC分类号： G01M7/022 , F16F15/0275 , G01M7/025 , G01M7/04 , B60G2400/206 , B60G2400/252 , B60G2600/60 , B60G2600/74 , B60G2600/76
摘要： An active control precision damping table supported by air springs. Level displacement and vibrations of the table are detected by a sensor or sensors, and sensor outputs are fed to a variation adder which carries out an adding operation on one of the sensor outputs and an inversion signal produced by inverting the other sensor output 180 degrees. The adder outputs results of the operation to a drive circuit, which in turn outputs a drive signal to a control valve. The control valve is operable in response to the drive signal to adjust air pressure in pressure vessels of the air springs.
摘要翻译： 由空气弹簧支撑的主动控制精密阻尼台。 通过传感器或传感器检测台的位移和振动，并且将传感器输出馈送到变换加法器，该变换加法器对传感器输出之一执行加法运算，并将反相信号转换为180度。 加法器将操作结果输出到驱动电路，驱动电路又将驱动信号输出到控制阀。 控制阀响应于驱动信号而操作，以调节空气弹簧的压力容器中的空气压力。
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公开(公告)号：US5179516A
公开(公告)日：1993-01-12
申请号：US680174
申请日：1991-04-03
IPC分类号： F16F15/027 , G01M7/02 , G01M7/04
CPC分类号： G01M7/04 , F16F15/0275 , G01M7/022 , G01M7/025 , B60G2400/206 , B60G2400/252 , B60G2600/60 , B60G2600/74 , B60G2600/76
摘要： An active control precision damping table supported by air springs. Level displacement and vibrations of the table are detected by a sensor or sensors, and sensor outputs are fed to a variation adder which carries out an adding operation on one of the sensor outputs and an inversion signal produced by inverting the other sensor output 180 degrees. The adder outputs results of the operation to a drive circuit, which in turn outputs a drive signal to a control valve. The control valve is operable in response to the drive signal to adjust air pressure in pressure vessels of the air springs.
摘要翻译： 由空气弹簧支撑的主动控制精密阻尼台。 通过传感器或传感器检测台的位移和振动，并且将传感器输出馈送到变换加法器，该变换加法器对传感器输出之一执行加法运算，并将反相信号转换为180度。 加法器将操作结果输出到驱动电路，驱动电路又将驱动信号输出到控制阀。 控制阀响应于驱动信号而操作，以调节空气弹簧的压力容器中的空气压力。
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公开(公告)号：US5060519A
公开(公告)日：1991-10-29
申请号：US299586
申请日：1989-01-23
IPC分类号： F16F15/027 , G01M7/02 , G01M7/04
CPC分类号： F16F15/0275 , G01M7/022 , G01M7/025 , G01M7/04 , B60G2400/206 , B60G2400/252 , B60G2600/60 , B60G2600/74 , B60G2600/76
摘要： An active control precision damping table supported by air springs. Level displacement and vibrations of the table are detected by a sensor or sensors, and sensor outputs are fed to a variation adder which carries out an adding operation on one of the sensor outputs and an inversion signal produced by inverting the other sensor output 180 degrees. The adder outputs results of the operation to a drive circuit, which in turn outputs a drive signal to a control valve. The control valve is operable in response to the drive signal to adjust air pressure in pressure vessels of the air springs.
摘要翻译： 由空气弹簧支撑的主动控制精密阻尼台。 通过传感器或传感器检测台的位移和振动，并且将传感器输出馈送到变换加法器，该变换加法器对传感器输出之一执行加法运算，并将反相信号转换为180度。 加法器将操作结果输出到驱动电路，驱动电路又将驱动信号输出到控制阀。 控制阀响应于驱动信号而操作，以调节空气弹簧的压力容器中的空气压力。
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