Strocera

Ring laser gyroscope cavity.

A gyro cavity block with CTE tuned to the operating temperature for navigation-grade dimensional stability.

STROCERA / / / Adaptive Glass-Ceramic / / / Inertial Navigation
[ 01 ]The challenge

A ring laser gyroscope's accuracy depends on the optical path length of its cavity staying constant; any expansion of the cavity block changes the path and biases the navigation solution. RLGs run at a defined operating temperature, but catalogue ultra-low-expansion glass-ceramics have their zero-crossing fixed at the material's design point, not the gyro's, leaving residual drift that limits navigation-grade performance, on long lead times.

Schematic, illustrativeAdaptive Glass-Ceramic
[ 02 ]The Strocera approach

Strocera supplies the cavity-block material with CTE tuned to near-zero at the gyro's actual operating temperature, delivered as a ready-to-fire powder blend so the block is formulated to the instrument rather than the instrument biased to a catalogue zero-point. You specify the operating temperature and stability budget; the mix is adjusted so dimensional drift stays inside the navigation-grade error budget. The dilatometry stack that certifies the powder documents the expansion curve for instrument error analysis, and in-house forming removes the finished-blank queue.

Full Adaptive Glass-Ceramic spec
[ 03 ]Specifications for this use case
Property
Value
Method
CTE
Tunable to near-zero at operating temp
Dilatometry
Operating temperature
Customer-defined (RLG)
Characterised range
100 to 800 °C
Push-rod dilatometry on sintered specimen
Form of supply
Dry, ready-to-fire powder blend
Composition
α-Al₂O₃ + boron-based additive
Batch formulation, gravimetric
[ 04 ]Validation status
Lab-validated

Near-zero CTE at operating point validated by dilatometry; instrument qualification per program.

[ 05 ]Customer profile

Inertial-navigation and RLG design teams needing a cavity block with CTE set to the gyro's operating temperature.

[ 06 ]Adjacent use cases

Engineers working on this often also evaluate:

Bring your specification for Ring laser gyroscope cavity.

Tell us the operating conditions. We'll formulate Adaptive Glass-Ceramic to your application, and ship a ready-to-fire powder blend, not a 12-18 month blank.