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The trigger is made in case all the signals being passed to the logic inputs of the logical function chosen cause the change of this function state for “true” or “false” when the clock input state is changed or stable (level timing).
LRF is one of auto measurement types of a digital oscilloscope in the time domain (“Delay” menu item) which is used for the measurement of the time delay between the first rising edge of channel 1 and the last falling edge of channel 2.
LRR is one of auto measurement types of a digital oscilloscope in the time domain (“Delay” menu item) which is used for the measurement of the time delay between the first rising edge of channel 1 and the last rising edge of channel 2.
Mathematical functions in digital oscilloscopes is a capability to perform mathematical operations between channels and to see the final oscillogram displayed.
A type of automatic measurements. The arithmetic mean measurement of the entire waveform. Level corresponding the half of difference between the main upper and lower levels.
MegaZoom III is the third generation of the fast deep memory architecture in Agilent digital oscilloscopes which appeared in 1996. It combines fast deep memory with high speed of information capture and a high resolution display that allows detecting rare hidden signal aperiodicities.
One of the main functions of an oscilloscope is acquisition of the analog signal; that signal is then passed on to an analog to digital converter where the signal is digitized. Once it is digitized, that information has to be stored in memory, processed and plotted / displayed.
The registration (data acquisition) is made regardless of the fulfillment of the triggering terms, the data registration is typically reset after the data acquisition.
The registration (data acquisition) begins after the appearance of the specified trigger term. The registration restarts after data acquisition.
The registration (data acquisition) begins after the appearance of the specified trigger term. The registration doesn’t restart after data acquisition.
All modern digital oscilloscopes regardless of the manufacturer have a significant noise level. The amplitude of the noise displayed on the screen of a digital oscilloscope (itself or the noise of the signal under measurement) depends on many factors including the sampling rate, signal brightness, persistence (inertia of the screen refreshing) and on the oscilloscope bandwidth as well.
Ordinary trigger mode is a mode when a signal record happens only after the trigger event detection. Prior to the data recording the oscilloscope stays in the trigger event waiting mode.
Oscillogram (curve) is a visual signal representation on a scope display.
The Oscilloscope is a type of electronic test instrument that allows observation of analog signals usually as a two-dimensional graph - the dependence of voltage (Y-axis, vertical) on time (X-axis, horizontal).
Shoot measurement after voltage change on the rising edge RovShoot and falling edge FOVShoot.
The trigger is made if during the specified period there has been no cross of the input signal with the specified voltage level in the specified direction. Pause report starts when the input signal crosses the specified voltage level in the specified direction.
Peak Detect is one of the acquisition modes in digital oscilloscope. Peak Detect mode captures the maximum and minimum signal values for each sample. It finds the highest and the lowest record points over many acquisitions.
The difference between the maximum and minimum values on the area.
The amount one waveform leads or lags another in time. Expressed in degrees, where 360 degrees comprise one waveform cycle. For spectral analysis of oscilloscope signals there is algorithm of Fast Fourier Transform (FFT) widely used. This fast and powerful tool gives opportunities to investigate the signal spectrum but unfortunately it also has its own disadvantages.
A certain part of the waveform record which contains the readings registered after the trigger (postrecord).
Means the shoot measurement untill the voltage change on the rising edge RPREShoot and falling edge FPREShoot.
A certain part of the waveform record which contains the readings registered before the trigger (prerecord).
Probe is a matching unit used for oscilloscope inputs connection to the electric circuit points under test. Inaccuracy of signal data measurement, the correctness of the displayed waveform under survey depend on probes.
It is the time from the pulse beginning (the signal transmission over the median level on the rising edge) to its end (the signal transmission over the median level on the falling edge).
Pulse Width trigger occurs according to the width of pulse. In other words this trigger mode is used to catch the pulses of the specified width.
Real-time sampling is the only way to capture fast, single-shot, transient signals with a digital oscilloscope. Real-time sampling is ideal for signals whose frequency range is less than half the oscilloscope’s maximum sample rate.
Record length matches the memory space subject to the signal registration in a digital oscilloscope.
Ratio of the pulse length to its period.
The time period for which the pulse level changes starting from the low reference value (usually 10%) up to the top reference value (usually 90%). 
A type of automatic measurements. Means the ratio of U shoot at the top in percent to amplitude (A) on the rising edge.
A type of automatic measurements. Means the ratio of U shoot at the bottom in percent to amplitude (A) on the rising edge.
Runt trigger is pulse amplitude triggering which crosses the first threshold level but doesn’t cross the second threshold level before the recross of the first one. Positive and negative pulse triggering is possible.
The sampling rate, sample rate, or sampling frequency defines the number of samples per unit of time (usually seconds) taken from a continuous signal to make a discrete signal.
Sampling time is a time period between the adjacent samples in the time scale. In analog-digital converters which work in real time sampling interval is the sampling rate inverse value. In analog-digital converters which work in the equivalent time the time period between the adjacent samples is determined by the equivalent time, not the real one.
Setup time is minimal time for the data set and stability before the appearance of the clock pulse rising edge.
Signal attenuation is the degree of signal amplitude contraction after passing through an attenuator device (probe or attenuator). Signal attenuation is determined by the input signal to output signal ratio. For example, 10X probe attenuates (reduce) the input signal voltage by 10.
Root of the root mean square deviation from the average value on all periods obtained on the specified area.
It is a rise time trigger, fall time trigger or both. Input signal trigger, the signal goes between two thresholds for the time which is more or less then the specified value; within or beyond the specified time interval.
Trigger is a synchronization event which sets zero reference time value in the signal registration in digital oscilloscopes.
Trigger coupling can be chosen depending on the signal type used for oscilloscope synchronization. There are several coupling types acceptable.
Trigger delay is a specified time interval after the trigger moment when the trigger system doesn’t take any other trigger signals. Trigger delay provides the stability of the signal image.
Trigger level is threshold voltage value the exceeding of which leads to a registration trigger signal forming in digital oscilloscopes.
The trigger mode determines the starting of recording (data collection) order in oscilloscope. Articles 51 - 100 of 118 First | Prev. | 1 2 3 | Next | Last |
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