BX350-3AA High Precision Resistance Strain Gauge Sensor

The BX350-3AA High Precision Resistance Strain Gauge Sensor uses a polyimide film base that bonds to test surfaces using cyanoacrylate or epoxy strain gauge adhesive. Polyimide handles temperature cycling better than paper-backed gauges and maintains dimensional stability during cure, which preserves the alignment of the foil grid to the stress direction after bonding. The strain limit of 0.02 means the gauge operates accurately up to 2% strain before the foil reaches its measurement limit — beyond this, the foil may yield permanently and the gauge gives unreliable readings. This range covers most elastic deformation in steel, aluminium, and composite structural members under working loads.

A strain gauge works by changing its electrical resistance when it physically stretches or compresses with the surface it is bonded to. The foil grid inside the Strain Gauge Sensor is made from a resistive alloy — when the surface bends or elongates under load, the foil grid deforms by the same amount, changing its resistance proportionally. That resistance change is tiny — a gauge factor of approximately 2.0 means a 1% strain produces roughly a 2% resistance change, so the output signal requires a precision differential amplifier like the HX711 or INA125 to convert it into a readable voltage.

The bx350 strain gauge sensor arduino connect the gauge in a wheatstone bridge configuration with a precision amplifier module to read millivolt-level bridge output signals. The high precision strain gauge sensor suits custom load cell fabrication, beam bending experiments, and structural health monitoring. this strain sensor working on strain measurement and mechanical testing.

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Features:

• Gauge factor 2.0 produces measurable resistance change under applied surface strain
• Polyimide PI film base withstands temperature cycling during bonding and measurement
• Strain limit 0.02 covers elastic deformation range of steel and aluminium structures
• Wheatstone bridge format works with HX711 and INA125 precision amplifier circuits
• Foil grid construction detects uniaxial strain along the gauge orientation direction

Technical Specification:

Applications:

• Strain Gauge Sensor fabricates custom load cell beams for precision scale
• BX350-3AA strain gauge sensor measures bending strain in cantilever beam structural experiments
• High precision strain gauge sensor monitors fatigue crack propagation in metal
• Strain gauge sensor arduino circuit measures torque on rotating shaft by surface strain
• BX350 strain gauge datasheet bridge circuit measures compressive strain in concrete column monitoring

Package Include:

• 1 x BX350-3AA High Precision Resistance Strain Gauge Sensor