Shear Type 45° Double Grid Strain Gauges for Torque Sensor

Shear Type 45° Double Grid Strain Gauges HA Series

Shear Type 45° Double Grid Strain Gauges HA Series are designed to measure shear strain resulting from torque or torsional loading. They can feature either one or two measuring grids attached to a single carrier. In a single-grid configuration, the strain gauge element is oriented at a 45° angle relative to the shaft axis. A two-grid shear strain gauge, also known as a V Rosette, has measuring elements set at 45° and 135°. These gauges are commonly used in applications such as engine shafts and drivetrains, where they can be used to calculate shaft power based on strain measurements.]

Model: HA series 
Carrier Material: Phenolic Aldehyde /Polyimide/Epoxy
Measuring Material: Foil(nickel copper alloy, Constantan or Karma)
Resistance: 350,650,1000 Ohm
Operational temperature －30～＋80℃, Temperature compensation range ＋10～＋80℃
Four (4) solder points, long terms stable.

With 4 tin points which facilitates the soldering of wires

Glueing surface: Steel or Alluminum. 

Applications:

Torsional Load Measurement / Torque sensing: Driveshafts, turbines, or rotating machinery.

Structural Health Monitoring: Bridges, beams, or joints under shear stress.

Aerospace/Automotive Testing: Wing spars, chassis components, or suspension systems.

Material Science: Studying shear properties in composites or alloys.

Example Use Case:

Monitoring shear stress in a helicopter rotor shaft:

• Install HA Series gauges at 45° on the shaft surface.
• Connect to a telemetry system via slip rings.
• Measure real-time torsional loads during operation to prevent fatigue failure.
• Optimized for shear/torsional strain measurement

Note: Other models and sizes are available according to customer request