SIRIUS XHS 
​​​​​​​High-Speed Data Acquisition System

Hybrid ADC Technology

The world is arguing. Which ADC converter is better. SAR ADC or Delta-sigma ADC? Well, now it doesn't matter anymore.  SIRIUS XHS introduces new ADC technology called Hybrid ADC. The technology allows the user to select three modes of operation for each analog input channel:

1. High bandwidth mode: 5 MHz bandwidth and 15 Ms/s sampling rate, SIRIUS 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 found in SAR ADCs.
2. High dynamic alias-free mode: up to 1 Ms/s data can be acquired up to 150 dB dynamic range. This alias-free filter with a bandwidth close to the Nyquist criteria is used for frequency domain analysis of the signal like sound and vibration. This behavior is similar to classical Sigma-Delta ADCs.
3. Ring-free filtering: for time-domain data analysis, with no overshoot on impulse signals, the ring-free filter is the best choice. We keep alias-free acquisition with an automatic setting of the cut-off frequency to 0.2 times of the sampling frequency.

By today's standard, you would need two totally separate DAQ devices for the mentioned measurements. The SIRIUS XHS DAQ system allows you to select the sampling rate independently per channel, ensuring that all measurements conform to the application. New amplifiers follow the capability of this new Hybrid ADC converter. All modes are available in one device, also in parallel acquiring two channels at different rates completely synchronous to each other.

Perfect Data Synchronization

If you combine channels from Sigma-Delta and SAR ADCs (high-bandwidth and alias-free), then channels are delayed due to the Sigma-delta filtering group delay. But with the SIRIUS XHS, both modes are​​​​​​​ perfectly aligned and synchronized, due to the nature and design of the chosen filter.

As with any other Dewesoft DAQ device​​​​​​​, data can be synchronized to other data sources such as vehicle bus interface (CAN, CAN FD, XCP, CCP, FlexRay), GPS & IMU devices, video, digital counters, and others.

Multiple SIRIUS XHS devices can be synchronized with each other using the PTPv2 synchronization method, IRIG, or PPS signal. This also provides absolute time synchronization using in-house time servers or GPS time. Each device can act as a clock master or slave, allowing standalone operation.

SIRIUS XHS is also backward compatible and it can be synchronized with any other Dewesoft DAQ devices like standard SIRIUS, KRYPTON, IOLITE, DEWE-43, ...

Open Data Interfaces and Standard Protocols

SIRIUS XHS has two ways of transmitting the data to the PC:

• Ethernet interface (GLAN) is intended for distributed data acquisition
• USB 3.0 (Type C connector) is intended for very high-speed transmission.

The system acquires data with a very low load on the CPU. This is made possible by using​​​​​​​ DMA transfer on the system level to reduce loads.

In today’s world of open toolchain and intercommunication, devices should be compliant with standard protocols. SIRIUS XHS can serve acquired data via these standard protocols, all in parallel.

• 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.
• XCP: Starting with version 1.4., XCP became a very powerful interface protocol in the automotive industry for data exchange. In the modern age of e-mobility, the required sampling rates are much higher than ever and 1 GBIT XCP interface allows data transfers with as high as 5 Ms/s.
• CAN and CAN FD: Vehicle bus systems can be read through the CAN FD interface while the measured data can be also transmitted through this “golden” standard protocol.

E-mobility Power Measurement Device With Integrated DC-CT Current Transducer

The SIRIUS XHS-PWR is a DAQ device designed for in-vehicle direct measurement of current, voltage, and power. It features an integrated patented DC-CT current transducer for very precise current measurements in the most demanding applications such as very high current peaks as well as leakage current measurement.

The current transducer uses special patented DC-CT technology based on the Platiše flux sensor. It represents the latest current sensing technology with ranges 100A, 500A, and 1000A, a wide 1 MHz bandwidth, and ultimate performance. Excellent linearity, precision, accuracy, immunity to external magnetic fields, low offsets, extremely low-temperature drift are achieved at low power operation.

The device can also directly measure the voltage up to 2000V peak (CAT II 1000V) with up to 5 MHz bandwidth.

The device is extremely compact and perfect for direct installation into a vehicle with the power lines leading through the device. It has an IP65 degree of environmental protection which allows the usage in harsh environments and during rough drives.

Learn more

• Integrated Power Measurement Solution With Patented High-Performance AC/DC Current Transducer
• New DC-CT current transducer technology explained

Expand and Distribute

SIRIUS XHS slices can be used as a stand-alone DAQ unit or stacked and daisy-chained together into a larger channel count system with simple click-mechanism.

For the distributed systems, you can easily distribute SIRIUS XHS devices via the GLAN interface where both data and perfect synchronization is available using a single RJ45 cable.

Not only that you can combine multiple SIRIUS XHS devices, you can also combine them with other Dewesoft DAQ systems like SIRIUS, KRYPTON, or IOLITE.

The configuration for working with multiple instruments is as easy as working with a single unit.