BX120-3AA GAUGE High Precision Resistance Strain Gauge

BX120-3AA High Precision Resistance Strain Gauge is engineered for accurate stress and strain measurement in structural testing, industrial monitoring, and precision instrumentation. With its stable resistance element and consistent output, this strain gauge helps engineers capture reliable data in both research and practical field applications.

Key Features:

• High Sensitivity: Delivers accurate strain measurement with excellent gauge factor stability.
• Precision Resistance Element: Built with 120 Ω nominal resistance for consistent performance.
• Temperature Compensation: Designed to minimize drift under varying thermal conditions.
• Low Hysteresis: Ensures repeatable readings during cyclic loading.
• Reliable Bonding Surface: Backed with adhesive-ready base for secure installation.

Technical Specifications:

• Nominal Resistance: 120 Ω ±0.1%
• Gauge Factor: ~2.0 (typical)
• Resistance Tolerance: ±0.1% for precise calibration
• Operating Temperature Range: −20 °C to +80 °C
• Insulation Resistance: ≥5000 MΩ at 100 V DC
• Recommended Excitation Voltage: 2 V – 10 V DC

Mechanical Specifications:

• Substrate Material: Flexible carrier film for easy mounting
• Grid Material: Constantan foil for high stability and linearity
• Protective Coating: Light protective layer to shield from moisture and dust
• Lead Wire Tabs: Designed for secure soldering of measurement leads

Dimensions:

• Gauge Length: ~3 mm
• Gauge Width: ~2 mm
• Overall Backing Size: ~7 mm × 5 mm
• Thickness: Approx. 0.02 mm (excluding lead tabs)

Pinout and Wiring:

• Lead 1: Connects to Wheatstone bridge input
• Lead 2: Connects to bridge opposite arm
• Wiring Note: Use shielded low-resistance wires to reduce noise. Follow Wheatstone bridge configuration for accurate measurement.

Datasheet Reference:

• Refer to the manufacturer’s datasheet for calibration curves, installation recommendations, and environmental performance details.

Applications:

• Structural Load Testing: Measure strain on beams, bridges, and building frameworks.
• Industrial Equipment Monitoring: Track mechanical stress in rotating or moving machinery.
• Research and Development: Apply in laboratory setups for stress analysis and materials testing.
• Sensor Manufacturing: Integrate into load cells, torque sensors, and force transducers.

Equivalent Models:

• BX120-2AA: Similar strain gauge with shorter grid length
• YFLAB-120 Series: Equivalent constantan foil strain gauges for general use
• KFG-3-120-C1: Alternative from Kyowa with comparable performance

Package Includes:

• 1 x BX120-3AA High Precision Resistance Strain Gauge