IRON AND STEEL INSTITUTE

Laboratory Name

RESIDUAL STRESS MEASUREMENT LABORATORY

Equipment Name

Vishay System 7000

Equipment Technical Specifications

1.System can receive strain gage measurement data at least 8 channels.
2.Electronically selectable bridge completion resistors allow the user to choose between 120 and 350-ohm strain gages through software selection.
3. Quarter, half or full bridge configurations can be used on each channel
4. Data acquisition rate per channel is at least 10 ks / s

Specialist

Tech. Tarık KARACA

tarikkaraca@karabuk.edu.tr

TECHNICAL INFORMATION

Residual Stress Measurement Techniques

Destructive Methods 
Drilling Method 
Layer Removal Method 
Cutting Method *
Non-Destructive Methods 
X-ray Diffraction Method 
Neutron Diffraction Method 
Ultrasonic Method 
Magnetic Methods

Vishay System 7000 has high sensitivity and low noise signal conditioning. The system is reliable and can complete selected bridge for 120, 350 and 1000 ohm strain gage electronically. Also it is capable of high speed Ethernet connection. In  Residual Stresses Measurement  Laboratory,  The following services are offered.

1) Actual and reliable strain distributions 
2) According to the measured strain  data,  Calculation of residual stresses 
3) According to EN 13674-1 standard,  Measurement of residual stress in rails

* This method is being used in the Institute