Why is integrated DAQ important for eVTOL R&D and certification?
Integrated DAQ helps engineers acquire consistent, time-synchronized measurement data from mechanical, electrical, and acoustic test setups. This enables efficient analysis, reliable documentation, and data-driven decisions throughout the eVTOL development process, from early R&D to certification-oriented testing.
What makes eVTOL testing especially demanding?
eVTOL testing requires precise, synchronized, and reliable measurement data across multiple technical domains. Electric vertical take-off and landing aircraft combine high-speed rotating components, electric powertrains, complex structures, and demanding acoustic requirements. For R&D and certification, test engineers need integrated DAQ solutions that can capture and correlate data from different sources under realistic operating conditions.
How is eVTOL testing supported by imc Test & Measurement and GRAS Acoustics?
imc Test & Measurement and GRAS Acoustics, two brands of Axiometrix Solutions, provide integrated data acquisition solutions for eVTOL development and certification. Their combined expertise supports test applications including:
- Structural testing of airframes and components
- Powertrain and electrical system measurements
- High-speed rotor and rotating component testing
- Measurements in harsh and mobile test environments
- Synchronized acquisition of data from multiple sources
- Acoustic testing for noise characterization and noise certification
- Measurement data analysis with FAMOS +AI for complex data analysis

Synchronous and multi-channel data acquisition in eVTOL-Testing
Synchronized Measurements of GPS/DCF77/IRIG-B/NTP/PTP
Data acquisition in HV-environments up to 1500V.
Support of ARINC-429, Ethernet, and RS-232/422/485.
Supports simultaneous measurement of physical quantities such as voltage, current, vibration, acceleration, strain, temperature, noise, pressure, wind speed and more.
Integrates >1000 analog channels and multi-bus signals in one platform.


Data acquisition on high-speed rotating eVTOL-components
imc Telemetry DAQ Systems
The imc telemetry DAQ systems offer
Battery-powered or inductively charged, slip ring-free, BlueBeam parameter configuration.
Supports simultaneous measurement of strain, vibration (IEPE), temperature, and displacement (LVDT).
Eliminates the risk of slip ring wear and reduces setup time.
Distributed DAQ on eVTOLs in confined spaces and harsh environments
Rugged, durable, and compact distributed DAQ
imc MTP-NT ultra-compact DAQ module: 10 kg peak shock (11 ms); -40°C to +125°C; PCM digital signal transmission, daisy-chain serial distribution expansion.
imc CANSASfit- compact high-performance DAQ module: IP65, MIL-STD-810F.
imc ARGUSfit - Next-generation modular, compact, and flexible DAQ platform. Individually configurable, distributed data acquisition.
imc CRONOSflex- Distributed DAQ architecture, multi-bus availability: ARINC-429, Ethernet, and RS-232/422/485.


Noise Characteristics and Certification of eVTOLs
Acoustic measurement solutions from imc and GRAS
UTP Ultra-Thin Microphone: Captures blade boundary layer noise; Surface Mount, Thickness < 1 mm.
67AX Ground Array: noise mapping, noise evaluation of hover, flyover, and takeoff phases.
Evaluation of the correlation between acoustic events and flight parameters (such as RPM, pitch, vibration) accelerates noise reduction and design iterations.
