2.3 Digitizer firmware (DGT option)
18
U5303A User's Manual
The
multi-record acquisition mode
enables successive events, occurring within a very short time,
to be captured and stored without loss. A very fast trigger rearm time is a crucial feature for multi-
record acquisitions. Thanks to fast trigger rearm, the U5303A achieves very low “dead time” between
the records of a multi-record acquisition. The “dead time” is the period after the end of an event when
the card cannot accept a new trigger event. The re-arm time is provided in the U5303A's U5303A
Program examples for Single record or multi-records acquisitions are available:
For IVI-C
C
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:\Program Files\IVI Foundation\IVI\Drivers\AqMD3\Examples\IVI-C
For IVI.NET
C:\Program Files\IVI Foundation\IVI\Drivers\AqMD3\Examples\IVI.NET
Acquisition memory
Data from the ADC is stored in on-board acquisition memory. The amount of memory in use for
acquisition can be programmed and is selectable from 1 point to the full amount of acquisition memory
available.
Model
Memory option
ordered
Acquisition memory
Max samples/channel
U5303A
-M02
256 MB
64 MS/ch
-M10
1 GB
256 MS/ch
-M40
4 GB
1 GS/ch
Table 2.2
- Maximum number of samples which can be recorded per channel, depending on ordered memory
option.
For technical reasons, a certain acquisition memory overhead is required for each waveform, reducing
the available memory by a small amount.
The effective maximum memory available for acquisition depends on several parameters, such as
the acquisition mode (single / multi-record / streaming), sampling rate, record size, number of
records, trigger delay, etc.... This maximum is determined by the driver for each specific
configuration. The
AQMD3_ATTR_MAX_SAMPLES_PER_CHANNEL
attribute in IVI-C or
IAqMD3Acquisition.MaxSamplesPerChannel
property in IVI.NET can be used to retrieve
the maximum number of samples per channel that can be acquired for a specific configuration.
When using the Soft Front Panel, the
Max Samples
per channel parameter is given on the
Acquisition panel
.
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Or the alternative drive letter where the Acqiris MD3 Software has been installed on your machine.