NF WAVE FACTORY WF1967, Инструкция по эксплуатации

Страница: 194 / 330

7.1 Basics
WF1967/WF1968 7-2
7.1 Basics
There are the following two types of methods to create arbitrary waveforms:
• Enter waveform data from the panel.
• Use the accompanying arbitrary waveform editing software to create arbitrary waveforms on a
personal computer.
This section describes the method to create arbitrary waveforms using operations on the panel of the
main unit.
Before doing it, you must understand some of arbitrary waveforms of this product.

Two types of data formats
There are the following two types of data formats for the arbitrary waveform data of this product:
• Array format
The data sequence corresponding to the address of a waveform memory.
This is the data format for using a waveform acquired with an oscilloscope as an arbitrary
waveform.
Waveforms imported by the digital oscilloscope can be transferred to this product using the
accompanying arbitrary waveform editing software.
Array format data cannot be created or edited on the panel. Also cannot be copied to edit memory.
Waveform length of the array format is 4Ki- to 1Mi words (2
n
, n = 12 to 20).
• Control point format
A waveform is created by interpolating between the specified control points (control points) with a
straight line.
Data value for each memory address cannot be specified directly.
A relatively simple arbitrary waveform can be created or edited manually on the panel.
The number of control points in the control point format can be 2 to 10,000 points.
For a waveform to be created, its time axis direction is fixed to 0 to 1 per cycle and the amplitude
direction is fixed to ±1 (equivalent to ±FS of waveform memory).

Save location of arbitrary waveforms
There are the three following save locations for arbitrary waveform data. Each memory is shared by
two channels in the WF1968.
• Internal storage memory
Non-volatile memory to save arbitrary waveforms.
The non-volatile memory can save up to 128 arbitrary waveforms for a total of 4Mi words (8Mi
bytes).
It can save arbitrary waveform data in any of array and control point formats.
For the memory capacity required for saving,
☞ P.
7-13
• Edit memory
Volatile memory to create an arbitrary waveform in the control point format. You can change the
number of control points between 2 and 10,000 points.
When you create/edit an arbitrary waveform on the panel, you operate data on this edit memory.
Only one waveform can be treated on the edit memory.
It is not possible to copy an array format of waveform in the edit memory.
• External USB flash memory
Allows you to copy data between the internal storage memory or edit memory reciprocally.
Arbitrary waveforms stored here cannot be directly output or directly edited. In order to edit or
output, please copy once the edit memory or internal memory.

Selection of arbitrary waveforms to be output
If you set an arbitrary waveform as an output waveform in the Oscillator setting screen, you can select
from internal memory or the edit memory.
The selected waveform is written to the output waveform memory with a maximum 1Mi word length.
If you select an output waveform on the edit memory, a waveform you are creating/editing appears as
it is in the output.