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    • 1. 发明专利
    • System and method for magnetically sensing position of moving component
    • 用于移动部件的磁感测位置的系统和方法
    • JP2011252912A
    • 2011-12-15
    • JP2011153114
    • 2011-07-11
    • Sri Internatlエスアールアイ インターナショナルSRI International
    • DONALD C ARNTZPABLO GARCIA
    • G01D5/245G01B7/00
    • F15B15/2861F15B15/2846G01D5/00G01D5/24423G01D5/24438G01D5/24447G01D5/24476
    • PROBLEM TO BE SOLVED: To provide a piston rod sensing system in which the strength of a rod is not adversely effected and a magnetically encoded signal is not erased.SOLUTION: Information is magnetically recorded in a plurality of tracks in the region of the magnetic hard layer on the piston rod. Magnetic-field sensors are arranged in the tracks in the magnetically recorded region. The magnetic-field sensors arranged on the tracks sense the same magnetized regions while the piston rod moves with respect to the cylinder. Other magnetic-field sensors can sense ambient fields for use in common-mode rejection. A write head can dynamically repair damaged or erased regions detected by the magnetic-field sensors. The magnetically recorded information is relatively encoded. Energized by a battery-backup power source, the magnetic-field sensors and associated circuitry can continue to track piston rod movement when the machinery is off.
    • 要解决的问题:提供一种活塞杆感测系统,其中杆的强度不受不利影响,并且磁编码信号不被擦除。 解决方案:将信息磁性地记录在活塞杆上的磁性硬质层的区域中的多个轨道中。 磁场传感器布置在磁记录区域的轨道中。 设置在轨道上的磁场传感器在活塞杆相对于气缸移动时感测相同的磁化区域。 其他磁场传感器可以感测用于共模抑制的环境场。 写头可以动态修复由磁场传感器检测到的损坏或擦除的区域。 磁记录信息被相对编码。 通过电池备用电源供电,当机械关闭时,磁场传感器和相关电路可以继续跟踪活塞杆的运动。 版权所有(C)2012,JPO&INPIT
    • 4. 发明专利
    • Position finding device
    • 位置查找装置
    • JP2013108884A
    • 2013-06-06
    • JP2011254956
    • 2011-11-22
    • Denso Corp株式会社デンソー
    • KUBOTA TAKAMITSUSHIMIZU YASUSHIHARA TETSUYAKONO SADAYUKI
    • G01D5/244
    • G06F17/40B60K26/04B60K2026/046B60W50/023B60W2510/0604B60W2540/10G01D5/145G01D5/24447G01D5/24476
    • PROBLEM TO BE SOLVED: To provide a position finding device that can secure redundancy of a memory circuit and, moreover, obtain a desired output when the source voltage has dropped.SOLUTION: A magnetism detecting IC 10 as a position finding device in a usual operation mode, after processing a signal outputted from a magnetism detecting element 11 with a DSP 13, stores it into an F/F 14, and outputs it outside via a D/A 16. In this process, the output value of the F/F 14 is stored into a memory 17. A monitor circuit 40, when detecting a power supply momentary cut-off mode, intercepts signals between the F/F 14 and the memory 17 and signals between the F/F 14 and the D/A 16, and outputs signals of the memory of which updating is suspended to the D/A 16. On the other hand, the monitor circuit 40, when detecting a power supply long-time drop mode, fixes signals of the memory at Hi or Lo, and outputs them to the D/A 16.
    • 要解决的问题:提供一种能够确保存储电路的冗余的定位装置,此外,当源电压下降时,获得期望的输出。 解决方案:作为通常操作模式中的位置查找装置的磁检测IC 10在用DSP 13处理从磁检测元件11输出的信号之后,将其存储到F / F14中,并将其输出到外部 在该处理中,F / F14的输出值被存储到存储器17中。监视电路40在检测到电源瞬时截止模式时,截取F / F 14和存储器17以及F / F14与D / A16之间的信号,并且将更新的存储器的信号暂停到D / A16。另一方面,监视电路40在检测到 电源长时间放电模式,将存储器的信号修正为Hi或Lo,并将其输出到D / A 16.版权所有:(C)2013,JPO&INPIT
    • 9. 发明专利
    • Magnetic absolute encoder
    • 磁性绝对编码器
    • JP2008180698A
    • 2008-08-07
    • JP2007320117
    • 2007-12-11
    • Harmonic Drive Syst Ind Co Ltd株式会社ハーモニック・ドライブ・システムズ
    • SASAKI KOZOMARUYAMA TOSHIYOSHIABE TOSHIYUKIMITAMURA MUNEO
    • G01D5/244
    • G01D5/24447G01D5/24428G01D5/24461
    • PROBLEM TO BE SOLVED: To propose a reliable magnetic absolute encoder for implementing a detection operation at a high speed and high precision during a normal operation, and for continuing the detection operation at a low power consumption during a backup operation.
      SOLUTION: In the magnetic absolute encoder 1, power is supplied from a normal operation power supply 8, and a normal operation circuit 5 and a normal/backup operation circuit 6 are operated during the normal operation. An abnormality diagnosis circuit 10 compares single-rotation absolute values (1), (2) detected by them, and self-diagnoses the existence of an abnormality. The normal operation power supply 8 is interrupted, and only the low-power-consumption normal/backup operation circuit 6 is operated so as to detect multiple-rotation value (2) during the backup operation. When the normal operation is recovered, a multiple-rotation value setting circuit 12 sets the multiple-rotation value (2) as the multiple-rotation value (1) in the normal operation circuit 5. An operation for calculating the multiple-rotation value (1) is resumed.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提出一种可靠的磁绝对编码器,用于在正常操作期间以高速和高精度实现检测操作,并且用于在备用操作期间以低功耗继续检测操作。

      解决方案:在磁绝对编码器1中,从正常操作电源8供电,正常操作期间操作正常操作电路5和正常/备用操作电路6。 异常诊断电路10比较通过它们检测的单旋转绝对值(1),(2),并自动诊断异常的存在。 正常工作电源8被中断,仅操作低功耗正常/备用操作电路6,以便在备份操作期间检测多个旋转值(2)。 当正常操作恢复时,多个旋转值设定电路12将多个旋转值(2)设定为常数运算电路5中的多个旋转值(1)。一种用于计算多个旋转值( 1)恢复。 版权所有(C)2008,JPO&INPIT