SIRIUSi-XHS®
TECHNICAL REFERENCE MANUAL
3.1.1. Hybrid ADC technology
User can select for each channel two modes of operation:
a) High bandwidth mode: with 5 MHz bandwidth and 15 Ms/sec sampling rate, XHS can perfectly
acquire impulse, step and square signals without any ringing or overshoot. Such a mode is
perfect for transient recording and power analysis. Such acquisition mode is typically in SAR
ADCs.
b) Alias free mode: up to 1 Ms/sec data can be acquired with extremely high dynamic, similar to our
dual 24 bit SIRIUS dual-core. The data is totally alias-free, so all higher frequencies are fully
rejected. Such a mode is perfect for sound, vibration, and general data recording applications.
Such acquisition mode is typically in Sigma-Delta ADCs.
Usually, you would need two totally separate devices for the above-mentioned applications. But on
SIRIUS XHS you can select channel per channel, depending on the application, the appropriate mode of
ADC operation.
3.1.2. Perfect synchronization
If you mix channels from Sigma-Delta and
SAR devices (high bandwidth and alias-free),
then channels are delayed due to
SIgma-delta filtering group delay. But with
SIRIUS XHS, due to the nature of the chosen
filter, both modes are perfectly aligned and
synchronized.
As on any Dewesoft devices, data can be
synchronized to other data sources, such as
vehicle bus interface, GPS, IMU, video, and
others.
Devices can be synchronized between each
other using PTPv2 mechanism, IRIG or PPS
signal. This also provides absolute time
synchronization using in-house time servers
or GPS.
3.1.3. Open interface protocols
In today’s world of open toolchain and intercommunication, each device should be compliant with
standard protocols. All protocols can be used at the same time.
OPC UA: is the industry standard. Actually, it is more than a standard, it is a perfect framework where
the device can be described and set up in any system, including SCADA, MES, ERP, mobile devices and
others.
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