Strain Sensors
Direct Write strain gages enable structural state sensing of components operating at high temperatures, and in abrasive, corrosive, and other harsh environments. Gage properties have been optimized for static and dynamic applications as well as integration with conventional conditioners and DAQ systems.
Direct Write strain gages are analogous to conventional resistive gages, albeit fabricated directly and conformally onto surfaces for integrated health monitoring. No adhesives or polymer films are required, enabling deployment in high temperature harsh environments. Gages can also be embedded within composite laminates, thus providing robust structural state sensing and integrated component diagnostics. Sensor alloys and patterns are selected to meet application requirements.
Key Features
- Long term survivability in high temperature, corrosive environments
- Harsh environment lead-wire routing and interconnects
- Reliable component strain measurement at temperatures up to 1000⁰F
- Integrated temperature sensing for monitoring environmental fluctuations
- Compatibility with conventional conditioners and infrastructures
- Rosette patterns available for multiaxial strain measurement
| Applications | Markets |
|---|---|
|
|
| Direct Write Strain Gage Products | |||
|---|---|---|---|
| Dynamic | Static |  |
|
| Size (mm2) | 50 | ||
| Resistance (Ω) | 50-1000 | ||
| Alloy | 2806-2 | 2816-2 | |
| Gage Factor | 1.4 | 1.0 | |
| Drift* (µε) | 1200 | < 250 | |
| Thermal output (µε/°C) | 760 | 120 | |
*indicated strain error after 5000 cycles at ±1000µε.