Systems, methods, and devices of the various embodiments provide for the minimization of the effects of intrinsic and extrinsic leakage electrical currents enabling true measurements of electric potentials and electric fields. In an embodiment, an ephemeral electric potential and electric field sensor system may have at least one electric field sensor and a rotator coupled to the electric field sensor and be configured to rotate the electric field sensor at a quasi-static frequency. In an embodiment, ephemeral electric potential and electric field measurements may be taken by rotating at least one electric field sensor at a quasi-static frequency, receiving electrical potential measurements from the electric field sensor when the electric field sensor is rotating at the quasi-static frequency, and generating and outputting images based at least in part on the received electrical potential measurements.

A measurement arrangement and method for providing at least one combined measurement dataset, said measurement arrangement comprising at least one measurement device configured to generate measurement data in a measurement session, and a mobile device configured to generate measurement session context data of said measurement session, said measurement device and said mobile device being connected via at least one wireless link for data transfer, wherein the measurement data generated by said measurement device and associated measurement session context data generated by said mobile device are linked to provide a combined measurement dataset.

Provided is a waveform processing assistance system for helping users determine the value of a parameter which is necessary in a waveform processing method for determining the rising and falling points of a peak and whose validity cannot be easily and intuitively determined The system includes: a waveform displayer for showing, on a display screen, a waveform including a peak; a marker displayer for showing, on the display screen, a marker which is capable of being moved by a user; and a slope information displayer for showing information related to the slope of the waveform at a point lying on the waveform and meeting the marker, or at a point which lies on the waveform, which meets the marker, and at which a predetermined operation has been performed by the user. Examples of the slope-related information include a numerical value of the slope, a tangent, and a grid.

An improved counter may implement dynamic frequency measurement while also remaining fully backwards compatible with traditional frequency measurement methods. The counter may operate according to low-frequency, large range, and/or high frequency modes of operation. It may be programmable with a divisor value associated with the large range operating mode, and a measurement time associated with the high frequency mode of operation. The divisor and measurement time settings may be enabled or disabled, and when either setting is disabled, the counter becomes backwards compatible with traditional frequency measurement methods. The counter may also be provided with inputs representative of the desired type of measurement and the minimum and maximum expected values for the signal to be measured. The counter may perform the frequency measurement according to any one or more of the operating modes, and return a measurement result obtained in the operating mode that completes the measurement first.

A measuring device comprises a first interface, which is adapted to receive a first measuring signal. The measuring device further comprises an acquisition memory, which is adapted to store at least one data segment of the first measuring signal. The measuring device further comprises an analyzer, which is connected to the acquisition memory, and is adapted to analyze the at least one data segment of the first measuring signal and generate a first analysis result therefrom. The measuring device further comprises a memory controller, which is adapted to either keep, in the acquisition memory, or discard, the at least one data segment based upon the first analysis result.

A method measures a characteristic of a SUT using a signal measurement device having multiple input channels. The method includes digitizing first and second copies of the SUT in first and second input channels to obtain first and second digitized waveforms; repeatedly determining measurement values of the SUT characteristic in the first and second digitized waveforms to obtain first and second measurement values, respectively, each second measurement value being paired with a first measurement value to obtain measurement value pairs; multiplying the first and second measurement values in each of the measurement value pairs to obtain measurement products; determining a mean-squared value (MSV) of the SUT characteristic measurement; and determining a square root of the MSV to obtain a root-mean-squared (RMS) value of the measured SUT characteristic, which substantially omits variations not in the SUT, which are introduced by only one of the first or second input channel.

Disclosed is a mechanism for reducing noise caused by an analog to digital conversion in a test and measurement system. An adaptive linear filter is generated based on a converted digital signal and measured signal noise. The adaptive linear filter includes a randomness suppression factor for alleviating statistical errors caused by a comparison of a signal circularity coefficient and a noise circularity coefficient in the adaptive linear filter. The adaptive linear filter is applied to the digital signal along with a stomp filter and a suppression clamp filter. The digital signal may be displayed in a complex frequency domain along with depictions of the adaptive linear filter frequency response and corresponding circularity coefficients. The display may be animated to allow a user to view the signal and/or filters in the frequency domain at different times.

A system and method are provided for graphically actuating a trigger in a test and measurement device. The method includes displaying a visual representation of signal properties for one or more time-varying signals. A graphical user input is received, in which a portion of the visual representation is designated. The method further includes configuring a trigger of the test and measurement device in response to the graphical user input, by setting a value for a trigger parameter of the trigger. The set value for the trigger parameters varies with and is dependent upon the particular portion of the visual representation that is designated by the graphical user input. The trigger is then employed in connection with subsequent monitoring of signals within the test and measurement device.

A electronic device that is operable to communicate with a spectrum analyzer. In one or more implementations, the electronic device includes a touch-sensitive display, the touch-sensitive display configured to receive one or more inputs, a memory operable to store one or more modules, and a processor communicatively coupled to the touch-sensitive display and to the memory. The processor is operable to execute the one or more modules to cause generation of a graphical representation of frequency-domain characteristics of an input signal at the touch-sensitive display. The processor is also operable to execute the one or more modules to dynamically adjust the graphical representation of the frequency-domain characteristics of the input signal at the touch-sensitive display in response to input received at the touch-sensitive display.

A method for accessing data acquired by a digital oscilloscope, consists of the following, steps: sampling signals based on a preset sampling frequency and converting into binary data by an ADC, continuously storing the data into a buffer based on preset rules: simultaneously, generating one trigger event based on preset timebase parameters and trigger conditions each time when acquired data meets the, trigger, conditions; reading a data segment from the buffer corresponding to the trigger event, and forming a waveform and then displaying. The procedure of storing, the acquired data into the buffer is independent of the procedure of generating the trigger event or reading the data segment or displaying the waveform. The implementation of the method and device for accessing data acquired by a digital oscilloscope as well as the digital oscilloscope brings the following advantages: seamless acquisition is achieved, the sampling rate is not restricted by timebase parameters, and the memory depth is not restricted by the waveform processing speed as traditional oscilloscope.