basic introduction to measurement with strain gauges
- Strain gauges are used extensively in sensor systems to detect forces, moments and deformations.
- The FL 100experimental unit provides a wide-ranging introduction to the fundamentals of measurement by strain gauges.
- Three test specimens for tension, bending and torsion are each fitted with four strain gauge measuring points.
- The strain gauges are wired in the full bridge.
- The specimens are loaded incrementally allowing for the strain reading to be sequentially monitored.
- The specimens can be inserted quickly and precisely into the frame.
- The strain gauge measuring range is protected by a Plexiglas cover, which also makes it clearly visible for inspection purposes.
- The measuring amplifier supplies the bridge supply voltage, and displays the load-dependent “bridge detuning” digitally in voltage values.
- The digital display also features a zero balancing function to allow for any preloading.
- The various elements of the experiment are clearly laid-out and housed securely in a storage system.
- Three additional tension bars are available as accessories, in brass (FL 100.01), copper (FL 100.02) and aluminium (FL 100.03), enabling the modulus of elasticity to be ascertained in experiments.
- experimental unit investigating the fundamentals of strain gauge measurement
- tension, bending and torsion tests each with strain gauge measuring points in full bridge circuit
- strain gauge application areas protected by Plexiglas cover
- steel test bodies
- measuring amplifier with 4-digit digital display
- frame to house the measuring objects
- determination of modulus of elasticity on various materials using measuring objects FL 100.01, FL 100.02, FL 100.03
- storage system to house the components
- Tension bar:
- measuring length: 50mm
- cross-section: 2x10mm2
- modulus of elasticity: 191000N/mm2
- Poisson’s ratio: 0,305
- Bending bar:
- length: 385mm
- cross-section: 5x20mm2
- modulus of elasticity: 210000N/mm2
- Torsion bar
- length: 500mm, Ø=10mm
- shear modulus: 80000N/mm2
- small: 10x 0,5N, 1x 1N (hanger)
- large: 1x 5N, 2x 10N, 1x 20N, 1x 5N (hanger)
- Strain gauge measuring point: full bridge, 350Ω
- measuring range: ±24mV
- resolution: 1µV
- zero balancing adjustment range: ±1mV
- supply voltage: 10VDC
- Frame opening W x H: 480x450mm
- 230V, 50Hz, 1 phase
- 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase
- UL/CSA optional
Dimensions & Weight:
- L x W x H: 560x410x610mm (frame)
- L x W x H: 600x400x320mm (storage system)
- Weight: approx. 20kg
- fundamentals of measuring with strain gauges
- strain gauge types and application techniques
- calculation of the mechanical deformations under tension, bending and torsion
- correlation between mechanical strain and electrical resistance in a strain gauge
- with FL 100.01, FL 100.02, FL 100.03: determination of the modulus of elasticity for various materials from the measuring data of a tensile test
Scope of Delivery:
- 1 frame
- 3 strain gauge test specimens
- 2 sets of weights
- 2 hexagon socket wrenches
- 1 measuring amplifier with strain gauge connecting cable
- 1 storage system with foam inlay
- 1 set of instructional material
- test bars for tension, bending and torsion with strain gauge measuring points as full bridge
- universal 1-channel measuring amplifier
– FL 100.01 Tension bar, brass
– FL 100.02 Tension bar, copper
– FL 100.03 Tension bar, aluminium
Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.