300°C OFDR Micro All-Metal Strain Sensor - Small Diameter Strain Gauge - Structural Health Monitoring Sensor - Picture parameters - Manufacturer brand price - DCYS - ofscn.org

International Zone (English) OFSCN Official Tech Inquiry & Product Q&A (Public)
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Iven | www.ofscn.org Last Updated: 15 February 2026

Alias： Micro Strain Sensor, OFDR Optimized Fiber Sensor, 0.6mm SST Strain Probe, Small Diameter Strain Gauge, HD-FOS (High-Definition Fiber Optic Sensing), High-Modulus Strain Transfer, Pre-terminated Strain Unit, Metal-clad Fiber Probe, Structural Health Monitoring (SHM) Sensor, Embedded Fiber Sensor, Harsh Environment Strain Sensing, 300°C Polyimide Coated Strain Fiber.

This is a companion discussion topic for the original entry at https://www.ofscn.org/dofs/300-c-ofdr-strain-sensor.html
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The OFSCN® 300°C OFDR Micro All-Metal Strain Sensor is a specialized high-definition fiber optic sensing (HD-FOS) tool designed specifically for distributed strain and stress measurement in harsh environments.

Technical Principles and Advantages

Unlike traditional sensors, this micro-strain sensor utilizes OFDR (Optical Frequency Domain Reflectometry) technology to achieve millimeter-level spatial resolution. Its core technical features include:

  1. High-Temperature Material Construction: It uses a single-layer seamless elastic alloy tube for encapsulation. The internal fiber is a 300°C Polyimide Coated Single-Mode Fiber, ensuring the sensor can operate stably from -60°C up to +300°C.
  2. Excellent Strain Transfer: The all-metal seamless tube design eliminates the “creep” effect common in polymer-based or glued sensors, allowing for high-modulus strain transfer from the structure to the fiber core.
  3. Micro Dimensions: With an outer diameter of only 0.6mm, it can be easily embedded into composite materials or welded onto metal surfaces without significantly affecting the structural integrity of the target object.

Product Visuals

OFSCN-OFDR-Strain-09-03
OFSCN-OFDR-Strain-09-03360×360 47.2 KB

OFSCN-OFDR-Strain-09-01
OFSCN-OFDR-Strain-09-01360×360 39 KB

OFSCN-300-fiber
OFSCN-300-fiber768×144 35.2 KB

Application Scenarios

This sensor is ideal for Structural Health Monitoring (SHM) in aerospace, automotive testing, and industrial piping where high temperatures and space constraints prevent the use of bulky traditional strain gauges.

For detailed technical specifications, you may visit the official product page:
OFSCN® 300°C OFDR Micro All-Metal Strain Sensor