Biological signal emulator

EEG, EMG, ECG

This emulator is a physiological signal generator designed to faithfully and controllably reproduce EEG, EMG, and ECG signals.

This system was designed to validate measurement devices. It is capable of generating electrical signals whose characteristics are identical to those acquired from a patient. Easy to implement, it allows validation of acquisition chains, filtering functions, and amplification stages of the reading device under perfectly reproducible conditions.

The use of synthetic signals makes it possible to avoid the constraints associated with acquisition from human subjects while ensuring full control of the simulated physiological parameters.

The device offers high generation accuracy, excellent stability, and low noise levels, ensuring reliable measurements throughout the entire instrumentation chain. Its modular and scalable architecture facilitates adaptation to your system, whether in terms of the number of ECG, EEG, or EMG signals, or even hybrid devices.

We also offer the study and design of custom solutions to adapt the system to specific needs in terms of signals, performance, interfaces, and integration.

Main features

Physiological signal generation

It is possible to generate up to 32 synchronous EEG channels, each covering the full frequency band, including Alpha, Beta, Delta, Theta, and Gamma bands.

It also supports the generation of EMG signals up to 500 Hz, faithfully reproducing muscular activity.

Finally, it can generate high-fidelity ECG signals with accurate reconstruction of P, QRS, and T waves, enabling measurements on all leads: unipolar, bipolar, and precordial.

Configuration and control

The user can select deterministic signals with adjustable parameters such as amplitude and frequency, and add various offsets, noise, or artifacts.

Alternatively, real physiological signals can be loaded and played back from recognized databases or from your own recorded acquisitions.

Interfaces and connectivity

The emulator features fixed and selectable interface impedances.

These are similar to those measured on patients, such as the impedance of a skin patch electrode.

Only a simple USB connection and a computer are required for operation.

An intuitive human–machine interface is provided with the system.

Application areas

Industry and medical devices

The system is used as a test bench for verifying the performance of biomedical equipment and validating hardware and software acquisition chains.

It facilitates the testing, qualification, and development phases of medical devices and embedded systems.

Biomedical research

The emulator is a reference tool for validating signal processing algorithms, testing acquisition chains, and developing brain–computer interface (BCI) systems.

It enables the reproduction of controlled and reproducible conditions suitable for scientific evaluation and prototyping.

Maintenance and calibration

The emulator enables periodic testing and calibration of biomedical acquisition systems.

It contributes to verifying proper equipment operation, ensuring quality assurance, and maintaining the metrological performance of installations.

Education and practical training

The device is intended for the simulation of physiological signals in university laboratories and training centers.

It enables practical training in biomedical instrumentation, learning biosignal conditioning and acquisition, and educational demonstrations without the constraints of using human subjects.

Customization and specific developments

We offer a tailored study and development service to meet specific requirements in physiological signal generation.

Solutions can include a customized number of channels, specific signal types, adapted frequency and amplitude ranges, as well as dedicated hardware interfaces and streamlined integration.

Each project undergoes a technical analysis to deliver a reliable solution that meets your constraints and complies with your requirements.