Oscilloscope Basic Usage Tutorial - Color Temperature Display and Freeze Display

Color temperature display

As we all know, in the normal display mode of the oscilloscope, the grayscale size is used to indicate the probability of the waveform occurring.

The greater the probability of a waveform appearing, the brighter the color of the waveform.

The smaller the probability of a waveform occurring, the darker the color of the waveform.

In order to more clearly understand the probability of the waveform occurring, use the color temperature display function.

To put it simply, the warmth or coldness of the waveform color temperature is used to reflect the probability of the waveform appearing.

Waveforms that occur less frequently are displayed in cool colors, and waveforms that occur more frequently are displayed in warm colors.

The persist button on the oscilloscope can switch between infinite persistence mode and color temperature display mode.

In the color temperature display mode, the waveform color is brighter, the contrast is better, and it is easier to observe the waveform trajectory.

Freeze Display

The freeze display function is turned on in the display menu.

For ease of understanding, we assume that the oscilloscope can collect 10,000 frames of waveform data within the total capture time of each screen.

When the user turns on the freeze display mode, once the stop key is pressed, the latest 10,000 frames of waveform data collected will be displayed on the screen, which can help observe the waveform details contained in these 10,000 frames of data.

These 10,000 frames of waveform data only apply to the moment of stop.

At this time, if we perform other operations, the waveform displayed on the screen will immediately change from displaying all 10,000 frames of waveform to displaying only the waveform data of the 10,000th frame.

When the freeze mode is not turned on, the oscilloscope uses real-time sampling. When the stop key is pressed, the waveform of the latest frame will be displayed on the screen, accurately reconstructing the waveform and measuring the signal accurately.