For example, :ACQuire:TYPE AVERages /*Set the acquisition method to average*/ :ACQuire:TYPE?/*The query returns AVERage*/ :ACQuire:SRATe? For example, :ACQuire:SRATe? /*The query returns 2,500,000 2.5M sampling rate*/ :CALibrate Command Subsystem : CALibrate: QUIT For example, :CALibrate:QUIT /*Exit self-calibration*/ CALibrate: STARt 18 / 136 sampled multiple times to reduce random noise on the input signal and improve vertical resolution. The number of averages can be set by the: ACQuire: AVERages command. The higher the number of averages, the lower the noise and the higher the vertical resolution, but the slower the response of the displayed waveform to waveform changes.
▷PEAK (Peak Detection): In this mode, the oscilloscope collects the maximum and minimum values of the sampling interval signal to obtain the signal envelope or narrow pulses that may be lost. Using this mode can avoid aliasing of the signal, but the display noise is relatively large. ▷HRESolution (high resolution): This mode uses an oversampling technique to average the neighboring points of the sampled waveform to reduce random noise on the input signal and produce a smoother waveform on the screen. It is usually used when the sampling rate of the digitizer is higher than the storage rate of the acquisition memory. Return format The query returns NORM, AVERage, PEAK, or HRESolution.
Command format :ACQuire:SRATe? Function description Query the current sampling rate. The default unit is Sa/s. Parameter The sampling rate refers to the frequency at which the oscilloscope samples the signal, that is, the number of waveform points sampled per second. The relationship between the sampling rate, memory depth, and waveform length satisfies the following formula: Memory depth = sample rate × waveform length Return format The query returns the sample rate as a real number. Command format :CALibrate:QUIT Function description Abandon the self-calibration operation at any time.
Command format :CALibrate:STARt Function description The oscilloscope starts performing a self-calibration operation. Description ▷ Self-calibration operation can quickly make the oscilloscope reach the best working condition to obtain the most accurate measurement value.