Shaft encoders for aerospace applications convert rotational mechanical motion into discrete electrical signals using optical (incremental and absolute disc-based), magnetic, or capacitive sensing principles, producing digital outputs compliant with ARINC and MIL-SPEC interfaces for use in flight control actuation feedback, landing gear position sensing, and engine accessory drive monitoring.
How many distinct aircraft programs each supplier in this area is linked to in our database — a proxy for how widely established a company is across the industry. Bars are relative to the top-ranked supplier.
Whether supply here is concentrated in a few big players or spread across many. Top-5 share is the portion of all program links held by the five largest suppliers. HHI (Herfindahl–Hirschman Index) runs 0–10,000: under ~1,500 is competitive, over ~2,500 is concentrated.
Where the listed suppliers in this area are based, by country of head office. Useful for sourcing, near-shoring and understanding regional strengths.