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公开(公告)号：US06985819B2
公开(公告)日：2006-01-10
申请号：US10022571
申请日：2001-12-20
IPC分类号： G01R23/16
CPC分类号： G01R15/125
摘要： A digital multimeter adapter for a portable electronic device includes a hardware interface connector and a computer program memory. The memory stores computer program instructions that direct the electronic device to collect data representative of a signal from an external source, analyzing the data to identify a characteristic such as voltage, current, or resistance, and displaying the data in digital format. The user may select one or more of the scales of the display. The adapter also may include a model value database, a collected value database, an application-specific database, and/or a language database.
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公开(公告)号：US06969983B2
公开(公告)日：2005-11-29
申请号：US10022573
申请日：2001-12-20
CPC分类号： G01R13/345 , G01R15/125
摘要： An oscilloscope adapter for a portable electronic device includes a hardware interface connector and a computer program memory. The memory stores computer program instructions that direct the electronic device to collect data representative of a signal from an external source and display the data as a waveform comprising individual data values as a function of time. The user may select one or more of the scales of the graph. The adapter also may include one or more of a model waveform database, a collected waveform database, an application-specific database, and a language database.
摘要翻译： 用于便携式电子设备的示波器适配器包括硬件接口连接器和计算机程序存储器。 存储器存储指示电子设备收集表示来自外部源的信号的数据的计算机程序指令，并且将数据显示为包括作为时间的函数的各个数据值的波形。 用户可以选择图的一个或多个刻度。 适配器还可以包括一个或多个模型波形数据库，收集的波形数据库，特定于应用程序的数据库和语言数据库。
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3.发明授权公开(公告)号：US06917875B2
公开(公告)日：2005-07-12
申请号：US10606892
申请日：2003-06-27
摘要： A signal processing apparatus for detecting and displaying the properties of diesel fuel powered compression-ignition engines senses strain pulses in the fuel injection rail structure to perform a variety of testing functions. Among other capabilities, the apparatus permits the user to establish stroboscope timing, to measure engine RPM, to view the relationship between crankshaft position and injection time, and to examine the time-dependent properties of strain pulses on individual fuel injectors in order to evaluate the condition of the diesel engine.
摘要翻译： 用于检测和显示柴油燃料动力的压燃式发动机的特性的信号处理装置感测燃料喷射轨道结构中的应变脉冲，以执行各种测试功能。 除了其他功能之外，该装置允许用户建立频闪仪定时，以测量发动机RPM，以查看曲轴位置和喷射时间之间的关系，并且检查各个燃料喷射器上的应变脉冲的时间依赖性质，以评估 柴油机的状况。
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公开(公告)号：US06617857B1
公开(公告)日：2003-09-09
申请号：US09895831
申请日：2001-06-29
IPC分类号： F02P1700
摘要： An engine analyzer senses and displays secondary ignition signals from a DIS engine using a two sets of test leads. The engine analyzer receives the secondary signals from both sets of leads and produces positive and negative peak values for each set of leads during each cylinder firing. Based upon the positive and negative peak values for both sets of leads, during each of the cylinder firings, the engine analyzer selects which lead set and which polarity will be used to supply the secondary voltage signal for each cylinder to be digitized and displayed.
摘要翻译： 发动机分析仪使用两组测试导线从DIS发动机感测并显示二次点火信号。 发动机分析仪从两组引线接收二次信号，并在每个气缸点火期间为每组引线产生正和负峰值。 基于两组引线的正峰值和负峰值，在每个气缸点火期间，发动机分析仪选择哪个导线组和哪个极性将用于为要被数字化和显示的每个气缸提供次级电压信号。
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