Quantum Gyro
Precision sensing with compact, cost-effective NMR gyroscopes
Quantum Gyro leverages nuclear magnetic resonance (NMR) to sense rotation with exceptional precision. Our innovations make high-performance gyroscopes smaller, more energy-efficient, and accessible for cutting-edge applications.
How It Works
A nuclear magnetic resonance (NMR) gyroscope senses rotation as a shift in the Larmor frequency of nuclear magnetic moments as they precess about an applied field. Low-cost NMR gyroscopes can achieve bias drift below 0.01 deg/hr with a volume of 103 cm³.
Current Development
NMR Gyroscope Technology
An NMR gyroscope senses rotation as a shift in the Larmor frequency of nuclear magnetic moment as they precess about an applied field. A sensitive optically pumped magnetometer has been developed which can sense the weak magnetic fields associated with the nuclear moments and thus allow the detection and determination of the Larmor precession frequency.
Partner With Us
NMR Gyroscope Technology
An NMR gyroscope senses rotation as a shift in the Larmor frequency of nuclear magnetic moment as they precess about an applied field. A sensitive optically pumped magnetometer has been developed which can sense the weak magnetic fields associated with the nuclear moments and thus allow the detection and determination of the Larmor precession frequency.
Our Development Goal
In this proposal we will develop cost effective chip scale NMR gyroscope, with ARW of 0.005 deg∕√hr and scale factor stability of 6 ppm. Utilizing cubic vapor cell contains mainly He Xe and Rb as the buffer gas (The exact material compounds will be discovered later), we will measure the shifted Larmor frequency due to the rotation in the reference frame.
Performance
Angular Random Walk
0.005
deg/√hr
Stability
Scale Factor Stability
6
ppm
Innovation
Technology Type
Chip-Scale
Cost Effective Design
Our Innovation
We replace the conventional two-laser architecture with a single laser that is split spectrally using our in-house frequency-separation method to generate two probe components with orthogonal polarizations. This enables Faraday-rotation readout of the Larmor precession using one optical source, substantially reducing power consumption and overall instrument size.
Introducing trace H2 forms a thin RbH layer on the cell walls that acts as an effective anti-relaxation coating, suppressing spin-destructive wall collisions and thereby increasing the transverse coherence time T2.
We will fabricate custom atomic cells that integrate miniature magnetic coils and micro-heaters directly into (or onto) the cell structure. This co-integration shortens thermal and magnetic time constants, improves field/temperature uniformity, and simplifies packaging for compact, low-power operation.
