T235 Short Gauge Strain Sensor


The T235 is a Single-Mode (SM) Fiber Bragg Grating (FBG) based Short-Gauge (10cm) Strain Sensor for surface mounting or for embedding into concrete and other materials.

Packaged to eliminate influences from the ambient environment. The short-gauge length defined by the sensor’s anchoring brackets yields immunity to local defects or inhomogeneities of the tested specimen. Excellent wavelength to strain and temperature linearity. Calibration service available upon request. The accuracy and precision specifications take into account any hysteresis, non-linearities, and the repeatability of the sensor. The T235 sensor handling and installation is fast, easy and intuitive. Immune to lightning and electromagnetic interference (EMI).

T235 series Short-Gauge Strain Sensors are fabricated using licensed and proprietary state-of-the-art laser manufacturing technologies and product designs. The sensor packaging described herein represents the most popular configuration and can be customized.

Key Features:

Strain and temperature linearity. T235 design uses one precision made FBG written into the fibers’ core for producing a transducer configuration of high linearity, resolution, accuracy, and precision. SLSR & BW options. If needed, temperature compensation is available using a separate, in-line T8XX series temperature sensor.

Pre-Strain level is adjustable during installation. Field pre-strainable to the application requirements during installation.

Ready to be daisy chained. Well suited for projects that include the need to monitor strain at one or many locations. Provided as single connectorized sensors or in ready to install arrays of various lengths and with a flexible number of sensors. When provided as arrays, the interconnections between adjacent T235s and other sensors can be via rugged waterproof connectors (T960) or by rugged waterproof splices (T970).

Multiple anchor designs for installation options. The T235 can be embedded or surface mounted using welding, mounting screws, or by chemical (glue) bonding. Custom mounting brackets can be designed upon request. Installation procedure provided.

Low cost and field proven. For demanding projects that require both low cost per sensing point and stable operation for long-term. Extensively used in field applications since 2010.


Technica undertakes a rigorous development process before products release. The company is also firmly committed to continuous improvements after release to insure performance to the highest standards, hence, specifications are subject to update without notice.

Technica Optical Components / 3657 Peachtree Rd, Suite 10A, Atlanta, 30319, USA, info@technicasa.com, www.technicasa.com

Manufactured and sold by Technica under International Licenses from Raytheon Technologies and Sylex Corporation

For more about our T235 Technology License please visit: https://www.sylex.sk