arrow_back_ios

Main Menu

See All Acoustic End-of-Line Test Systems See All DAQ and instruments See All Electroacoustics See All Software See All Transducers See All Vibration Testing Equipment See All Academy See All Resource Center See All Applications See All Industries See All Insights See All Services See All Support See All Our Business See All Our History See All Our Sustainability Commitment See All Global Presence
arrow_back_ios

Main Menu

See All Actuators See All Combustion Engines See All Durability See All eDrive See All Production Testing Sensors See All Transmission & Gearboxes See All Turbo Charger See All DAQ Systems See All High Precision and Calibration Systems See All Industrial electronics See All Power Analyser See All S&V Hand-held devices See All S&V Signal conditioner See All Test Solutions See All DAQ Software See All Drivers & API See All nCode - Durability and Fatigue Analysis See All ReliaSoft - Reliability Analysis and Management See All Test Data Management See All Utility See All Vibration Control See All Acoustic See All Current / voltage See All Displacement See All Load Cells See All Pressure See All Strain Gauges See All Torque See All Vibration See All LDS Shaker Systems See All Power Amplifiers See All Vibration Controllers See All Accessories for Vibration Testing Equipment See All Training Courses See All Whitepapers See All Acoustics See All Asset & Process Monitoring See All Custom Sensors See All Data Acquisition & Analysis See All Durability & Fatigue See All Electric Power Testing See All NVH See All Reliability See All Smart Sensors See All Vibration See All Weighing See All Automotive & Ground Transportation See All Calibration See All Installation, Maintenance & Repair See All Support Brüel & Kjær See All Release Notes See All Compliance See All Our People
arrow_back_ios

Main Menu

See All CANHEAD See All GenHS See All LAN-XI See All MGCplus See All Optical Interrogators See All QuantumX See All SomatXR See All Accessories See All Accessories See All BK Connect / Pulse See All API See All Microphone Sets See All Microphone Cartridges See All Acoustic Calibrators See All Special Microphones See All Microphone Pre-amplifiers See All Sound Sources See All Accessories for acoustic transducers See All Experimental testing See All Transducer Manufacturing (OEM) See All Accessories See All Non-rotating (calibration) See All Rotating See All CCLD (IEPE) accelerometers See All Charge Accelerometers See All Impulse hammers / impedance heads See All Cables See All Accessories See All Electroacoustics See All Noise Source Identification See All Environmental Noise See All Sound Power and Sound Pressure See All Noise Certification See All Industrial Process Control See All Structural Health Monitoring See All Electrical Devices Testing See All Electrical Systems Testing See All Grid Testing See All High-Voltage Testing See All Vibration Testing with Electrodynamic Shakers See All Structural Dynamics See All Machine Analysis and Diagnostics See All Calibration Services for Transducers See All Calibration Services for Handheld Instruments See All Calibration Services for Instruments & DAQ See All On-Site Calibration See All Resources See All Software License Management

What is a Foil Strain Gauge?

A foil strain gauge is a sensor for measuring relative changes in the length of a material (strain) due to applied forces. This deformation is registered as compression or tension and is greatly influenced by the elastic properties of the tested material. Positive strain refers to instances where mechanical components have elongated while negative strain describes materials that are compressed.

The Measuring Principles of Foil Strain Gauges

Foil strain gauges are used to determine the value and direction of strain. This is achieved by a measuring grid that is usually installed on a material surface to acquire applied strain as a factor of changes in electrical resistance against the foil strain gauge’s nominal resistance and its sensitivity factor. It registers compression as a decrease in electrical resistance and elongation as an increase. To calculate material stresses (Experimental stress analysis) the strain values are coupled with a material’s physical properties such as its Young’s modulus (Hooke’s law). Alternate applications for strain gauges are transducers such as load cells, force-, torque- and pressure transducers. There are thousands of distinct foil strain gauges available from HBM including linear, rosette, torsion/shear, full bridge, and chain formats.
  • Linear strain gauges are preferable for measuring strain across a single plane of direction
  • Rosette foil strain gauges feature dual measuring grids to offset strain measurements at a 90° angle to measure biaxial stress
  • Torsion/shear strain gauges feature uniquely arranged measuring grids for determining the shear stress of torsion bars
  • Double linear foil strain gauges feature parallel measuring grids for acquiring perpendicular stress in bending beams
  • Full bridge strain gauges feature 4 integrated measuring grids for robust strain measurements of shear stresses in tension and compression bars
  • Chain foil strain gauges are equipped with a number of smaller measuring grids to acquire shear force gradients across the measuring bridge 

Foil Strain Gauges from HBK

HBM is an expert in the manufacture and supply of leading measurement instrumentation for a broad range of applications. Our foil strain gauges are routinely used for Experimental Stress Analysis, durability testing, and transducer manufacturing, providing unrivalled accuracy in the field of strain analysis. If you would like any more information about our measurement components for stress analysis, please do not hesitate to contact us.

Support Content

No more result to load