amc VIBRO AV ACQUISITION 4001 Руководство пользователя - Страница 10

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Attention

Inputs should be activated in sequence – activating some of them while omitting the others, e.g.

activating inputs 0 and 3 and leaving inputs 1 and 2 inactive, may cause data loss.

This area contains Hardware and Measurement buttons.

The Measurement button is more important for

configuration of the module. Its window, shown in the

adjacent figure, allows changing the sampling frequency.

The Analog Input tab presents the current sampling

frequency and the size of data buffer. To change these

settings, select USB-1608FS, DeviceX – Input HW in the

Attention

The sampling frequency for individual channel cannot exceed the value of 100 kHz, while the sum

of sampling frequencies for all active channels is maximum 400 kHz. An attempt to set too high

sampling frequency results in error message and a proposal to set the highest possible frequency.

Clicking the Hardware button opens a window of the AVA module hardware settings.

The only relevant tab here is Analog Input. After clicking the following tabs will be displayed: Settings

and Trigger.

In the Settings tab, in the Acquisition mode field it is possible to select one of the following options: N

samples or Continuous. By selecting N samples, the user may enter in the Sample count filed the number

Timebase field and then click

the Modify button. This will open the window shown in the figure. In this

window, in the Scan rate field it is possible enter required sampling

frequency, select the proper unit, and in the Block size field it is possible

to select proper size of data buffer.