Use Cases
Motion measurement and feedback
for piezo-actuated systems
Summary
Piezoelectric actuators enable nanometric positioning in demanding applications, but require equally precise motion feedback. Fogale provides complete measurement chains for real-time position control and performance validation
The challenge
Piezoelectric actuators are widely used in advanced positioning systems across aerospace, optics, semiconductor, and precision manufacturing industries.
Accurate displacement measurement is critical to:
- Characterize actuator stroke, linearity, hysteresis, and repeatability
- Control the position of moving structures actuated by piezo devices
- Enable high-resolution closed-loop motion control
- Validate performance under vacuum, thermal or vibratory constraints
Application Examples
Ideal for advanced control, R&D, and performance testing of piezo-driven mechanisms.
- Closed-loop control of piezo actuators for positioning systems
- Validation of actuator stroke and behavior under load
- Measurement of sonotrode motion in ultrasonic applications
- Integration into active optical systems and adaptive structures
The solution
Fogale delivers non-contact, high-resolution capacitive measurement chains for precise displacement tracking.
Measurement Principle and Highlights
- Capacitive sensor technology with nanometric resolution
- Direct integration with actuator setup via dedicated fixtures
- Real-time analog signal output for feedback control
- Full system includes sensor, low-noise cable and conditioner
Key Advantages
Feature | Benefit |
|---|---|
Nanometric resolution | Enables ultra-fine motion control and analysis |
Full system delivery | Sensor + electronics + cables = ready-to-use solution |
Low thermal drift | Ensures measurement stability in lab and field |
Real-time output | Compatible with control loops and fast response systems |
Robust and compact | Easy to install in tight setups |
The results
By combining its sensor know-how with electronics expertise, Fogale enables OEMs, researchers and integrators to fully exploit the capabilities of piezoelectric actuators. Our measurement chains enhance accuracy, repeatability, and control reliability — unlocking performance at the nanoscale