Use Cases
Cryogenic liquid level monitoring
in mobile LH2 tanks
Summary
When Every Drop Counts, Precision is Key
In liquid hydrogen (LH₂) transport and storage, continuous and accurate mass and level measurement is essential for safety, efficiency, and operational reliability. Harsh cryogenic conditions demand solutions that deliver high performance without compromise.
Reliable, High-Accuracy Cryogenic Liquid Measurement with FOGALE KRYON.
The challenge
Monitoring LH₂ in mobile and stationary applications presents major challenges:
- Extreme Cryogenic Conditions – Accurate measurement despite temperatures down to 20K (-253°C)
- Long-Term Stability and Reliability – Systems must perform consistently over years without recalibration.
- Mechanical Stresses and Vibrations – Measurement systems must resist transport-induced shocks and alignment shifts.
- Accuracy Requirements – Mass and level measurement errors must stay below ±1%, even in harsh, real-world conditions.
- Inaccurate LH₂ level monitoring leads to operational risks, inefficient fueling, and safety hazards.
APPLICATIONS IN HYDROGEN MOBILITY AND STORAGE
- Automotive Applications – For mobile vehicle (hydrogen storage monitoring).
- Aerospace Tanks – Adaptation for larger tanks with high accuracy level and mass measurements.
The solution
For over 25 years, FOGALE has been a pioneer in cryogenic capacitive sensing for liquid hydrogen applications, delivering robust solutions to automotive, aerospace, and energy sectors.
System Features:
- Flexible Capacitive Electrodes – Adaptable design tolerates mechanical vibrations and misalignments without loss of accuracy.
- Miniature Embedded Electronics – Stable, no recalibration required over the sensor’s 10-year lifespan.
- Exclusive Focus on Measurement Zone – No capacitance leakage in cables, connectors, or electronics, ensuring precise readings.
- High Accuracy Under Real Conditions – Maintains < ±1% error even under full thermal and pressure variations.
TECHNICAL EXAMPLES
| Tank Size | Measured Range/Accuracy | Comments |
|---|---|---|
| Small Tanks (~65 liters) | 280 mm < ±1% | Embedded probe with flexible electrodes |
| Large Tanks (~100 liters +) | 1 meter < ±1% | Extended flexible probe; robust against vibrations |
Both cases achieve < ±1% total measurement error over full environmental conditions (-40°C to +85°C).
The results
FOGALE KRYON capacitive LH₂ measurement solutions set the standard for safe, reliable, and precise cryogenic mass and level monitoring. Proven across automotive and industrial projects, these systems deliver confidence for the future of hydrogen mobility and energy.