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OscilloscopesSearch by section D.E.V.I.C.E. services
A type of automatic measurements. Measures the first cycle waveform. Positive Duty Cycle is the ratio between positive pulse width (t) and period (T). 
A type of automatic measurements. +Wid measures the time between the first rising edge and the next falling edge at 50% level of the waveform. 
A type of automatic measurements. Measures the first cycle waveform. Negative Duty Cycle is the ratio between negative pulse width and period. 
A type of automatic measurements. -Wid measures the time between the first falling edge and the next rising edge at 50% level of the waveform. Afterglow is a gradual decrease in the brightness of oscillogram points on a scope display. Depending on the mode used brightness can stay steady or reduce with a specified speed.
When you change horizontal sweep on a digital oscilloscope you can see the waveform changing of the same signal on different horizontal sweeps. It’s important to take into consideration the fact that you work with a digital oscilloscope and it digitizes a signal with different sampling rate depending on the horizontal sweep chosen, and afterwards it connects the digitized points with a smooth line (interpolates them), restores the real signal waveform.
Two-channeled alternative triggering for simultaneous observation of two nonsynchronized signals.
The difference between maximum and minimum signal values.
One of the auto measurement types in digital oscilloscopes, relating to a derivative measurement type of amplitude and time, is the definition of an area under the waveform curve.
Automatic measurement is a function in modern digital oscilloscopes which allows measuring different types of values automatically: in amplitude and time domains.
AutoSet is an oscilloscope function which allows getting a steady signal image of a convenient size automatically.
Average is one of the acquisition modes in digital oscilloscope. The averaged waveform is a running average over a specified number of N acquisitions.
Oscilloscope bandwidth is a frequency range where oscilloscope signal attenuation doesn’t exceed – 3 dB relative to reference frequency signal.
Bandwidth limit is an oscilloscope mode when its upper frequency of the bandwidth intentionally reduces to the frequency which is several times lower.
Signal amplitude and time interval measurement parameters
A type of automatic measurements. The duration of a burst measured over the entire waveform. Channel is a separate input used for the signal record with a device.
Crest-factor (form factor) is signal amplitude to its rms value ratio. Crest-factor is an important indicator when analyzing the supply voltage quality.
A type of automatic measurements. The true Root Mean Square voltage over the first cycle in the waveform.
“Cursor measurements” is the mode in which an oscilloscope determines the cursors positions on Y- or X-axes and calculates the difference between these cursors positions.
Pair markers used for measurement by two data points (in an oscilloscope or logic analyzer). Vertical cursors are two movable vertical lines used for the measurement of temporary oscillogram parameters (e.g. signal T period). Horizontal cursors are two horizontal movable lines used to measure the signal level parameters.
One of the auto measurement types in digital oscilloscopes, relating to a derivative measurement type of amplitude and time, is the definition of an area under one (e.g. the first one) waveform cycle.
Delay A→B means time delay measurement between the edges of two signals. Meanwhile the edges should be both falling or rising.
Delay A→B¯ means time delay measurement between the edges of two signals. The first edge should be rising and the second one – falling or vice versa.
Edge triggering is performed when the signal level of synchronization source passes through the specified voltage level in the prescribed direction.
An edge trigger occurs when the input signal crosses the specified voltage level in the chosen direction. Depending on the functionality of oscilloscope capabilities the trigger can occur on rising, falling or rising & falling edge.
Effective number of bits is the feature which reflects the signal quality (or its quality reduction) of analog-digital system in some frequency range. ENOB is defined by IEEE1057 specifications. Besides that IEEE1057 specifications describe the ENOB measurement methods. ENOB is generally acknowledged quality index of ADC, Oscilloscopes and some other discretization systems.
ETS allows a digital oscilloscope to capture high–frequency signals with a much higher effective sampling rate.
External synchronization signal is a synchronizing pulse which is external relatively to the measuring device (oscilloscope, generator, logic analyzer etc.) and it usually synchronizes with the system under test.
An eye diagram is created when many short segments of a waveform are superimposed such that the nominal edge locations and voltage levels are aligned.
The time period for which the pulse level changes starting from the top reference value (usually 90 %) down to the low reference value (usually 10%) 
FFF is one of the auto measurement types of a digital oscilloscope located in the time domain (“Delay” menu item), which is used for the measurement of the time delay between the first falling edge of channel 1 and the first falling edge of channel 2.
FFR - is one of the auto measurement types of a digital oscilloscope located in the time domain (“Delay” menu item) which is used for the measurement of the time delay between the first falling edge of channel 1 and the first rising edge of channel 2.
Fast Fourier transform (FFT) is a digital oscilloscope mathematical function which converts a time-domain signal into its frequency components mathematically namely performing signal spectral analysis.
A type of automatic measurements. The measurement of U (shoot) at the bottom on the falling edge.
A type of automatic measurements. The measurement of U shoot at the top on the falling edge.
FRF - is one of the auto measurement types of a digital oscilloscope located 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 first falling edge of channel 2.
FRR - is one of the auto measurement types of a digital oscilloscope located 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 first rising edge of channel 2.
Glitch is a pulse noise of different origin.
A special case of pulse width trigger is glitch trigger. In general glitch is a short pulse disturbance of uncontrolled parameters. Glitch synchronization is pulse trigger of the width which is less than the sampling period.
Hold time is minimal time for the data set and stability after the appearance of the clock pulse.
Horizontal delay is the time period between trigger moment and registration in digital oscilloscopes.
Interpolation in digital storage oscilloscopes is continuous signal reconstruction on a limited reports number (samples).
LFF 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 falling edge of channel 1 and the last falling edge of channel 2.
LFR 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 falling edge of channel 1 and the last rising edge of channel 2.
Also known as Lissajous figure or Bowditch curve. It is the graph of a system of parametric equations which describe complex harmonic motion.
The trigger is made when a signal passed to the logic inputs causes the change of the specified function state for “true” or “false”.
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