SIRIUS® XHS: High-performance universal and charge amplifiers with advanced variable triggering for counter inputs
August 26, 2026
The SIRIUS® XHS high-speed data acquisition platform now supports a broader range of analog, sensor, and digital measurements with three new additions:
SIRIUS® XHS-UNI,
SIRIUS® XHS-CHG, and
SIRIUS XHS® CNT with Variable Trigger.
SIRIUS® XHS-UNI adds universal signal conditioning for strain gauges, voltage, IEPE sensors, potentiometers, RTDs, resistance, and current.
SIRIUS XHS-CHG provides dedicated charge acquisition for piezoelectric sensors, including both high-bandwidth and DC charge measurements.
The new Variable Trigger option for SIRIUS® XHS counters enables adjustable trigger thresholds for tachometers, encoders, inductive sensors, and other digital signals with non-standard logic levels.
The XHS-UNI and XHS-CHG analog amplifiers provide sampling rates of up to 15 MS/s, 5 MHz bandwidth, fully isolated inputs, and Dewesoft HybridADC technology. HybridADC combines high-bandwidth transient acquisition with high-dynamic, alias-free acquisition within the same instrument.
Together, the new inputs extend SIRIUS® XHS from high-speed transient acquisition to universal sensor measurements, charge acquisition, combustion analysis, strain measurement, encoder and tachometer measurements, and hardware-based real-time triggering.
SIRIUS® XHS-UNI: universal high-speed DAQ amplifier
SIRIUS® XHS-UNI combines universal sensor connectivity with the high-speed acquisition capabilities of the SIRIUS® XHS platform. It supports sampling rates of up to 15 MS/s, 5 MHz bandwidth, and a slew rate greater than 100 V/µs, with full isolation on every analog input.
The amplifier supports a wide range of sensors and measurement types, including:
Full-, half-, and quarter-bridge strain gauges
Voltage measurements up to 100 V
IEPE sensors
Potentiometers
RTDs
Resistance
Current
Flexible voltage and current excitation allows sensors to be connected directly to the amplifier, while Class 1 and Class 2 TEDS support simplifies sensor identification and setup.
High-bandwidth and alias-free acquisition with HybridADC
SIRIUS® XHS-UNI uses Dewesoft HybridADC technology to support two acquisition modes within the same instrument: high-bandwidth acquisition for fast transients and high-dynamic, alias-free acquisition for precision measurements.
The combination of up to 15 MS/s sampling, 5 MHz bandwidth, and a slew rate above 100 V/µs enables the amplifier to capture rapidly changing signals while retaining the flexibility required for conventional sensor measurements.
This capability is relevant for jet engine and turbine testing, where high-bandwidth quarter-bridge strain measurements and constant-current push-pull technology are required. The high sampling rate, slew rate, IEPE support, and alias protection also support pyroshock measurements and high-speed transient recording.
For applications that combine analog and digital measurements, XHS-UNI can also be equipped with Supercounter inputs for event counting, waveform timing, encoders, tachometers, and gear tooth measurements.
The standard SIRIUSi-XHS-8xUNI configuration provides eight channels with female D-SUB9 connectors. Other connector configurations are available on request.
DISCOVER JET ENGINE TESTING
SIRIUS® XHS-CHG: high-speed and DC charge measurement
SIRIUS® XHS-CHG adds dedicated charge acquisition to the SIRIUS XHS platform for piezoelectric sensors used in dynamic, combustion, propulsion, road-load, and high-temperature measurements.
The amplifier supports sampling rates up to 15 MS/s and 5 MHz analog bandwidth, allowing it to acquire fast charge signals such as rapid pressure changes during combustion and propulsion testing.
Charge ranges from ±1,000 to ±500,000 pC provide coverage across different piezoelectric sensor sensitivities and measurement ranges. Configurable input coupling, from DC coupling to adjustable high-pass filtering, enables both dynamic and DC charge measurements.
Each input is fully isolated, supporting measurement setups with different ground potentials.
Charge, voltage, and IEPE measurements
SIRIUS® XHS-CHG is not limited to charge sensors. The same amplifier also supports voltage measurements from ±10 V down to ±0.1 V and IEPE sensors with adjustable excitation current.
This allows charge, voltage, and IEPE sensors to be combined within a measurement system without requiring a separate amplifier type for each signal.
Like XHS-UNI, XHS-CHG uses HybridADC technology to combine high-bandwidth transient acquisition with high-dynamic, alias-free recording.
These capabilities support applications including:
Combustion pressure measurement
Engine and propulsion testing
Rocket propulsion measurements
Road-load data acquisition
Dynamic measurements with piezoelectric sensors
Measurements in high-temperature environments where sensors with integrated electronics may not be suitable
DISCOVER COMBUSTION ANALYSIS
EXPLORE ROAD-LOAD DATA ACQUISITION
SIRIUS® XHS counters with variable trigger: adjustable trigger levels for digital inputs
Digital measurement signals do not always conform to standard TTL or CMOS logic levels. The Variable Trigger option for SIRIUS XHS Supercounters allows the trigger threshold to be adjusted according to the actual input signal.
The module combines eight Supercounters, 24 digital inputs, and eight digital outputs and supports:
Event counting
Waveform timing
Encoder measurements
Tachometer measurements
Gear tooth measurements
Eight digital inputs can also be configured with AC coupling.
Variable trigger from -2 V to +50 V
Instead of relying only on predefined digital logic levels, Variable Trigger allows engineers to set the trigger threshold from -2 V to +50 V with 12 mV resolution.
Preset configurations are available for TTL/CMOS and inductive signals, while a custom mode allows the trigger behavior to be configured for other sensors and signal levels.
This enables direct acquisition of tachometer signals and other digital signals with non-standard logic levels. In many measurement setups, the adjustable threshold can remove the need for separate external signal conditioning.
The counter inputs provide 15 MHz bandwidth and 32-bit counter resolution for timing and event measurements. Integrated 5 V and 12 V sensor supplies support direct connection of common counter and tachometer sensors.
Hardware-based trigger out with response below 1 µs
SIRIUS XHS counters also support hardware-based real-time Trigger Out. A measured event can generate a hardware output with a response time below 1 µs.
This enables measurement events to trigger time-critical external actions, including alarms, protection functions, and emergency shutdown systems.
EXPLORE SIRIUS XHS COUNTERS WITH VARIABLE TRIGGER OPTION
LEARN ABOUT DIGITAL ENCODER AND COUNTER MEASUREMENTS
More measurement types on the SIRIUS XHS platform
The addition of XHS-UNI, XHS-CHG, and Variable Trigger for SIRIUS® XHS counters expands the range of sensors and signals that can be acquired within the SIRIUS XHS platform.
The platform can now combine:
Strain and bridge measurements
Voltage and current
IEPE sensors
RTDs and resistance
Potentiometers
Charge and piezoelectric sensors
Encoders and tachometers
Event counting and waveform timing
Gear tooth measurements
Digital inputs with adjustable trigger thresholds
Hardware-based real-time trigger outputs
The XHS-UNI and XHS-CHG amplifiers combine up to 15 MS/s sampling, 5 MHz bandwidth, fully isolated analog inputs, and HybridADC acquisition. SIRIUS XHS counters extend the system with high-speed digital and timing measurements, including adjustable trigger thresholds and hardware-based Trigger Out.
This allows high-bandwidth transient signals, precision analog measurements, charge signals, and digital events to be acquired within the synchronized SIRIUS XHS DAQ platform.
High speed and high dynamic range in one DAQ platform
SIRIUS® XHS with HybridADC technology combines high-bandwidth transient recording with high-dynamic, alias-free acquisition in the same instrument, covering measurements from precision signals to fast transients.
Up to 15 MS/s. Up to 5 MHz bandwidth. Alias-free acquisition. Universal sensor connectivity. Advanced counters.
EXPLORE SIRIUS XHS
READ THE SIRIUS XHS MANUAL