Digital storage oscilloscopes have advantages over traditional analog oscilloscopes
Modern digital storage oscilloscopes first sample analog signals at high speed to obtain corresponding digital data and store them. Use digital signal processing technology to perform relevant processing and calculations on the sampled digital signals to obtain various required signal parameters (including some electrical parameters of components that may need to be tested with a multimeter). The signal waveform is drawn based on the obtained signal parameters, and real-time and transient analysis of the measured signal can be performed to facilitate users to understand the signal quality and diagnose faults quickly and accurately.
When the measurement starts, the operator can select the measurement type (waveform measurement, component measurement), measurement parameters (frequency/period, effective value, resistor resistance, diode on-off, etc.) and measurement range (optional automatic setting) through the Chinese interface. The range is automatically set by the instrument); the microprocessor automatically interprets the measurement settings to the sampling circuit and starts data collection; after the collection is completed, the microprocessor processes the sampling data according to the measurement settings, extracts the required measurement parameters, and The result is sent to the display component. If necessary, the user can choose the automatic test mode: after analyzing the data obtained from the first sampling, the microprocessor will adjust, modify the measurement settings and resample according to the specific situation. After several such "sampling-analysis-adjustment-resampling" cycles, the oscilloscope can complete the touch-and-measure function without the need to manually change the range, making it easy to operate by hand.
Obviously, digital storage oscilloscopes have many outstanding advantages compared with traditional analog oscilloscopes:
·The test conditions can be automatically determined and adjusted according to the characteristics of the signal being tested, truly realizing automatic, hands-free testing.
·It can easily achieve real-time capture of high-speed and transient signals.
·It has obvious advantages in waveform storage and calculation.
