Rigol DS1000Z Series Dokumentacja Pobierz pdf (Strona 19)

Chapter 2 Command System RIGOL

DS1000Z Programming Guide 2-5

:ACQuire:MDEPth

Syntax :ACQuire:MDEPth <mdep>

:ACQuire:MDEPth?

Description Set or query the memory depth of the oscilloscope namely the number of waveform

points that can be stored in a single trigger sample. The default unit is pts (points).

Parameter

Name

Type

Range

Default

<mdep>

Discrete Refer to the Explanation

AUTO

Explanation  When a single channel is on: {AUTO|12000|120000|1200000|12000000|24000000}

When dual channels are on: {AUTO|6000|60000|600000|6000000|12000000}

When four channels are on: {AUTO|3000|30000|300000|3000000|6000000}

Wherein, 24000000, 12000000 and 6000000 are optional.

 The relationship among the memory depth, sample rate and waveform length is

satisfied with the following equation:

Memory Depth ＝ Sample Rate × Waveform Length

Wherein, the Memory Depth can be set using the

:ACQuire:MDEPth command and

the Waveform Length is the product of the horizontal timebase (set by

the

:TIMebase[:MAIN]:SCALe command) and the number of the horizontal scales

(12 for DS1000Z).

When AUTO is selected, the oscilloscope will select the memory depth automatically

according to the current sample rate.

Return

Format

The query returns the actual number of points (integer) or AUTO.

Example

:ACQuire:MDEPth 12000 /*Set the memory depth to 12000*/

:ACQuire:MDEPth? /*The query returns 12000*/

Command

:ACQuire:SRATe?

:TIMebase[:MAIN]:SCALe

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Rigol DS1000Z Series Dokumentacja Strona 19