Netzer Precision supported a critical motion-control subsystem within a next-generation guided missile program developed by one of the world’s top-tier defense contractors. By delivering absolute rotary encoders engineered for extreme shock, vibration, and EMI-dense environments, Netzer ensured stable positioning performance from launch through mission execution. The result: precision that withstands the realities of modern defense systems.

The Challenge

Modern defense systems operate in environments that push sensing technology to its limits. Guidance and stabilization assemblies must maintain precise motion feedback while exposed to extreme launch shock, sustained vibration, and dense electromagnetic interference generated by radar and onboard electronics.

At the same time, components must operate across wide temperature ranges (from -40°C to +105°C, with storage up to +125°C) while fitting within tightly constrained mechanical assemblies. Within these conditions, even minor positional instability can degrade guidance accuracy and mission assurance. Once integrated, recalibration is not possible. The encoder must perform reliably throughout the system’s lifecycle.

Traditional optical encoders are fragile to vibration and contamination, while magnetic encoders are vulnerable to interference in EMI-heavy environments. The subsystem required a sensing solution capable of combining extreme robustness with sub-millidegree precision.

The Netzer Solution

Netzer delivered a harsh-environment encoder architecture based on its VL and DS technology platforms, specifically designed for mission-critical defense applications.
At the core of the solution is Netzer’s contactless capacitive sensing technology, which provides absolute rotary position feedback without mechanical wear. Unlike magnetic-based technologies, capacitive sensing is inherently immune to magnetic interference and maintains signal integrity in EMI-rich environments.
Integrated temperature-compensation capabilities ensure stable positional accuracy despite thermal expansion and contraction, as well as rapid environmental changes, enabling reliable operation from storage conditions through active deployment.

To support different subsystem architectures and environmental requirements, Netzer offers several encoder families commonly used in demanding defense applications:

Harsh Environment

Hollow Shaft | VLP

Extreme Temp +125°

Hollow Shaft | VLT

Encapsulated

Hollow Shaft | DS

Spindle

Shaft Encoder | DL

These encoders provide high-precision feedback in compact form factors, starting as small as 13 mm – enabling integration without compromising mechanical stability or performance.

The result was a production-ready encoder solution delivering reliable, high-precision position feedback under extreme operational conditions.

Key Performance Characteristics

Key Takeaway

Next-generation defense systems depend on sensing technologies that can maintain precision under extreme operational stress.
By combining contactless capacitive sensing, integrated temperature compensation, and harsh environment encoder architectures, Netzer delivered reliable absolute position feedback for a mission-critical guided missile subsystem.

Precision engineered to perform from launch through mission execution.