INERTIQ

Quantum Inertial Sensing in Dynamic Environments Based on Optomechanical Resonators

In addition to satellite systems, inertial sensors that measure accelerations and rotational movements are used for navigation and positioning. If the Global Navigation Satellite System (GNSS) fails for a short or extended period, such sensors are indispensable. However, existing solutions face a trade-off: they are either particularly sensitive or compact and robust – achieving both at the same time is difficult.

The QVLS-iLabs project INERTIQ is developing a novel optomechanical acceleration sensor that combines high sensitivity with a compact design. The basis is the precise measurement of the displacement of a micro-integrated oscillator. This allows the bandwidth and dynamic range to be flexibly adapted to different applications.

The sensor concept is compatible with ultra-high vacuum and “quantum-ready” and can potentially be combined with atom-interferometric quantum sensors. In two demonstrators, the system is being tested both in the laboratory and under real-world conditions in a vehicle. INERTIQ thus makes an important contribution to robust, high-precision navigation solutions of the next generation.

Project Partner

LPKF Laser & Electronics SE

Geo++ GmbH

Physikalisch-Technische Bundesanstalt (PTB)

DLR Institut für Satellitengeodäsie und Inertialsensorik (DLR-SI)

Leibniz Universität Hannover,
Institut für Quantenoptik

Contact Person

Dr. Malte Schulz-Ruhtenberg
LPKF Laser & Electronics SE