EVENT ACTIVITY TRIGGER
    61.
    发明申请

    公开(公告)号:US20200304110A1

    公开(公告)日:2020-09-24

    申请号:US16894778

    申请日:2020-06-06

    Abstract: Methods of triggering a test and measurement instrument having a plurality of inputs include the step of generating a trigger signal in response to every occurrence of any one of a plurality of specified trigger events. A first specified trigger event occurs in at least a first one of the inputs and a second specified trigger event occurs in at least a second one of the plurality of inputs. A specified trigger event may include at least one selected input from the plurality of inputs and a selected activity type. Some methods include configuring each of a plurality of event activity detectors to produce a pulse in a logic signal in response to every occurrence of one of the specified trigger events. The plurality of logic signals are combined in a logical OR circuit to generate the trigger signal. Trigger circuits configured according to these methods are also disclosed.

    Linear and non-linear calibration for time interleaved digital-to-analog converter

    公开(公告)号:US10735013B2

    公开(公告)日:2020-08-04

    申请号:US16526875

    申请日:2019-07-30

    Abstract: A time-interleaved digital-to-analog converter system, comprising a digital pre-distorter configured to receive an input digital signal and an error signal and output a distorted digital signal based on the input digital signal and the error signal; a time-interleaved digital-to-analog converter having a first sample rate, the time-interleaved digital-to-analog converter configured to convert the distorted digital signal to an analog signal; and a calibration system. The calibration system includes an analog-to-digital converter having a second sample rate equal to or lower than the first sample rate, the analog-to-digital converter configured to receive the analog signal and covert the analog signal to a down-sampled digital signal, a discrete-time linear model configured to receive the input digital signal and the error signal and output a model signal, and a combiner to subtract the down-sampled digital signal from the model signal to generate the error signal.

    Electronic rotary switch
    63.
    发明授权

    公开(公告)号:US10720295B2

    公开(公告)日:2020-07-21

    申请号:US16042146

    申请日:2018-07-23

    Abstract: An electronic switch includes a substrate and a rotator assembly. The rotator assembly is configured to prevent rotation between a first rotational configuration and a second rotational configuration in a first translational position of the rotator assembly, while the rotator assembly is configured to rotate between the first rotational configuration and the second rotational configuration in a second translational position of the rotator assembly. The second translational position of the rotator assembly is translationally offset from the first translational position of the rotator assembly. An electrical contact of the rotator assembly is configured to electrically connect an electronic input path of the substrate to an electronic output path of the substrate in the first rotational configuration and first translational position of the rotator assembly, but not to electrically connect the electronic input path to the electronic output path in the second rotational configuration of the rotator assembly or in the second translational position of the rotator assembly.

    Test and measurement instrument having advanced triggering capability

    公开(公告)号:US10094868B2

    公开(公告)日:2018-10-09

    申请号:US14553405

    申请日:2014-11-25

    Abstract: A test and measurement instrument, including an input configured to receive a signal-under-test, a user input configured to accept a first trigger event and a second trigger event from a user, a first trigger decoder configured to trigger on an occurrence of the first trigger event and generate a first trigger signal, a second trigger decoder configured to trigger on an occurrence of the second trigger event occurring after the first trigger event and generate a second trigger signal, and an acquisition system configured to acquire the signal-under-test in response to the first trigger signal and store the acquired signal-under-test based on whether the second trigger signal validates or invalidates the first trigger signal.

    TWO PORT VECTOR NETWORK ANALYZER USING DE-EMBED PROBES
    68.
    发明申请
    TWO PORT VECTOR NETWORK ANALYZER USING DE-EMBED PROBES 审中-公开
    使用DE-EMBED PROBES的两个端口矢量网络分析仪

    公开(公告)号:US20150084656A1

    公开(公告)日:2015-03-26

    申请号:US14267697

    申请日:2014-05-01

    CPC classification number: G01R31/31924 G01R27/28 G01R35/005

    Abstract: A test and measurement system including a device under test, two de-embed probes connected to the device under test, and a test and measurement instrument connected to the two de-embed probes. The test and measurement instrument includes a processor configured to determine the S-parameter set of the device under test based on measurements from the device under test taken by the two de-embed probes.

    Abstract translation: 包括被测器件的测试和测量系统,连接到被测器件的两个解嵌探测器以及连接到两个解嵌探测器的测试和测量仪器。 测试和测量仪器包括处理器,其被配置为基于由两个解嵌入探针所采取的被测器件的测量值确定被测器件的S参数组。

    CURRENT MONITOR COMBINING A SHUNT RESISTOR WITH A ROGOWSKI COIL

    公开(公告)号:US20240036079A1

    公开(公告)日:2024-02-01

    申请号:US18225034

    申请日:2023-07-21

    CPC classification number: G01R15/181 G01R19/0092 G01R15/146

    Abstract: A current measurement device includes a shunt having sense leads, the shunt configured to be located in a current path for a current to be measured, and a Rogowski coil at least partially wrapped around the shunt, the current measuring device configured to combine signals from the shunt and the Rogowski coil. A current measurement device includes a shunt having sense leads configured to be located in a current path for a current to be measured, a Rogowski coil in series with the sense leads and at least partially wrapped around the shunt, a compensating pole connected to the Rogowski coil, and an isolation barrier connected to the compensating pole.

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