High Frequency Reciprocating Rig (HFRR)

Displacement frequency can set and read through a PC with software. The specimen holder is mounted on a flexure which is stiff in the vertical (loading) direction, but offers limited resistance to horizontal force movement to the horizontal direction. The Electric Force Transducer converts mechanical quantities, such as force, directly to an electric charge and is proportional to the force acting on the quartz crystal in the sensor, which is specified in the PC. An accelerometer is mounted on the output shaft of an electro-dynamic shaker which measures the displacement accelerometer and utilizes the spring mass system for generating a force proportional to amplitude of the input accelerometer to the base of system.

 

Features

  • Conforms to ASTM D6079 and related specifications
  • Variable Frequency from 10 Hz to 200 Hz via software
  • Wear scar measurement through digital microscope and software
  • Real time data acquisition of frictional force, coefficient of friction and temperature
  • User friendly software for operating test rig with different operating sequences
  • Programmed test sequence for automated testing
  • PC-based digital and data acquisition
  • Fully computer controlled test sequence
  • Easy on-site calibration
  • Proven repeatability and reproducibility
  • Rigidly built dedicated table-top rig

 

Specifications

Conforms to the Specifications of:  ASTM D6079, D7688; ISO 12156; IP 450; EN 590; CEC F-06-A 

Contact Geometry: Ball on Plate (Point Contact)

Stroke: 20 microns to 2 mm

Frequency: 10 Hz to 200 Hz

Test Load: 1 N to 10 N through dead weights

Frictional Force: 0 to 10 N

Temperature Range: Ambient to 150 °C

Test Disc Size: 10 mm dia. x 3 mm thick

Test Ball Size: 6 mm diameter