Measuring systems
KRYON
Cryogenic level & mass measurement solutions
Purpose & use cases
FOGALE’s KRYON cryogenic sensing solutions are designed to provide accurate, stable, and drift-free measurements of liquid gases levels and mass, even under severe thermal and mechanical constraints.
Key objectives include:
- Track liquid level (detection and monitoring) and usable mass in cryogenic tanks
- Ensure safe filling, fuel usage monitoring, and energy control
- Avoid boil-off errors, dry runs, and overfills
- Enable calibration-free operation over long product lifespans
- Support embedded and mobile use with minimal weight and volume impact
Architecture & key components
Capacitive cryogenic probes
- Rigid or flexible sensing elements
- Self-guarded, leakage-free capacitance design
- Range: 200 mm to several meters
- Installed inside grounded tubes
- Typical weight: ~440 g for 1-meter probe
Electronics & signal conditioning
- Embedded or separate electronics for direct output
- Ultra-stable measurement across full thermal range (20K to 358K)
- No recalibration required
- ATEX-certified versions available
Cables & integration kits
- Low-noise cables up to 20 meters
- Customized interfaces for automotive, launcher, or ATEX tanks
- Vibration and EMI-resistant configuration
Proven applications
- Automotive LH₂ storage (OEM & consumer tanks)
- Aerospace launchers (LHe, LOx, LCH4 cryogenic stage tanks)
- Hydrogen-powered aircraft
- Ground test benches for cryogenic propulsion
- ATEX or high-pressure industrial hydrogen systems
Key Advantages
- No capacitance leakage in sensor, cable, or electronics
- Capacitance measured only in the active sensing zone
- Compatible with small or large cryogenic tanks
- Excellent mechanical tolerance to vibration and centering shifts
- Excellent stability, even in sloshing conditions
- Accuracy typically < ±0.5 % of tank height
- Designed for real-world lifetime stability (10+ years)
Services Available
- Probe length and geometry adaptation
- On-site or remote technical support