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    • 1. 发明申请
    • Data Analyzer
    • 数据分析仪
    • US20110251826A1
    • 2011-10-13
    • US13123966
    • 2009-10-14
    • Gerard McGoogan
    • Gerard McGoogan
    • G06F15/00
    • G01H1/003G01M13/045
    • The present invention relates to an off-line signal analyzer comprising a digital signal processor (8) configured to perform digital processing on a signal comprising data derived from a sensor input (1). The sensor may, for example, be an accelerometer mounted to a rolling element bearing for detecting bearing vibration. According to the invention, the analyzer comprises a digital to analogue converter (11) for supplying an analogue output, derived from the digital signal processor (8), to an analogue device such as headphones (10).
    • 本发明涉及一种离线信号分析仪,其包括数字信号处理器(8),其被配置为对包括从传感器输入(1)导出的数据的信号执行数字处理。 传感器可以例如是安装到用于检测轴承振动的滚动元件轴承的加速度计。 根据本发明,分析器包括用于将从数字信号处理器(8)导出的模拟输出提供给诸如耳机(10)的模拟设备的数模转换器(11)。
    • 5. 发明授权
    • Intrinsically safe circuits
    • 本质安全电路
    • US6111738A
    • 2000-08-29
    • US83769
    • 1998-05-22
    • Gerard McGoogan
    • Gerard McGoogan
    • H02H9/00H02H3/20
    • H02H9/008
    • An intrinsically safe circuit for use in a hazardous environment includes a plurality of circuit sectors (1, 2) which are substantially isolated physically from one another by an electrical insulator, such as air, and are electrically connected, directly or indirectly, so as to define at lease one power transfer path (P1) between each circuit sector (1) and the other circuit sector (2) ; and power limiting means such as resistors (R1, R2) provided in each power transfer path between the connected circuit sectors for limiting the maximum power transfer value therebetween to a value less than a predetermined threshold value at which combustion in said hazardous environment is initiated. The circuit sectors (1, 2) having at least one power transfer path (P1) defined therebetween may have different sparking voltages, in which case voltage clamping means such as Zener diodes (Z1, Z2) is provided in each power transfer path between the two circuit sectors having different sparking voltages, for reducing the maximum voltage which may be applied by one of the two circuit sectors to the other.
    • 用于危险环境的本质安全电路包括多个电路部分(1,2),其通过诸如空气之类的电绝缘体彼此物理上彼此隔离,并且直接或间接地电连接,以便 在每个电路扇区(1)和另一个电路扇区(2)之间至少定义一个功率传输路径(P1); 以及功率限制装置,例如设置在连接的电路扇区之间的每个功率传输路径中的电阻器(R1,R2),用于将其间的最大功率传递值限制在小于开始所述危险环境中的燃烧的预定阈值的值。 具有在其间限定的至少一个功率传输路径(P1)的电路扇区(1,2)可具有不同的火花电压,在这种情况下,诸如齐纳二极管(Z1,Z2)之类的电压钳位装置设置在 具有不同的火花电压的两个电路扇区,用于将可由两个电路扇区之一施加的最大电压降低到另一个。