Residual Stress

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 American Stress Technologies' variety of Barkhausen Noise Testing Instruments are:

bullet  Rollscan 200: Analog, fixed Frequency instrument for Barkhausen Noise Analysis Measurements.
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 Rollscan 300: Digital signal processing (DSP), Multiple Frequency instrument for Barkhausen Noise Analysis Measurements. 

bullet  µScan 600 Digital signal processing (DSP) based, Multiple Frequency instrument for Barkhausen Noise Analysis Measurements.
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 What is Barkhausen Noise?

Barkhausen Noise system for grinding burn and heat treat defect detection

  Barkhausen systems are designed for the control of surface quality and testing of near surface defects involving changes in stress and microstructure. Grinding burns and various heat treat defects created during induction hardening and carburizing processes are rapidly and reliably found by the Barkhausen system. Detecting grinding burns through plating is also possible with the Barkhausen system.

The Rollscan 200 was introduced in 1987 to measure for grinding burns and heat treat defects.

The Rollscan 300 was introduced in 2005 to measure for grinding burns and heat treat defects.

The µScan 600 was introduced in 2005 for advanced research work in Barkhausen noise

 

 

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