Ultrasonic Bonding Strength Calibration via Tensile Reference

The patent creates a calibration curve through preliminary tensile testing of standard samples with known bonding strengths. This calibration data is stored and used for subsequent ultrasonic measurements, eliminating the need for repeated tensile tests on actual workpieces. The calibration curve establishes the relationship between ultrasonic signal characteristics and bonding strength, enabling accurate non-destructive measurement.

The patent replaces the mechanical tensile testing system with an ultrasonic non-destructive testing system. Instead of physically applying tensile force to measure bonding strength, the system uses ultrasonic waves to detect bonding quality. This substitution maintains measurement accuracy while dramatically improving convenience, as ultrasonic testing can be performed on installed components without disassembly or mechanical loading.

The calibration curve is created once through preliminary tensile testing of standard samples, and this calibration data is reused for multiple subsequent measurements. This eliminates the need to perform time-consuming tensile tests for each workpiece, significantly improving testing efficiency while maintaining accuracy through the established calibration relationship.

The ultrasonic testing system performs measurements rapidly without the setup, loading, and destruction required by tensile testing. Multiple measurements can be taken quickly on different workpieces or at different locations, dramatically increasing productivity while the calibration curve ensures measurement accuracy remains comparable to tensile testing.