Ultrasonic Bolt Measurement Services & Systems

Accurate Bolt Tension Measurement Using Ultrasonic Technology

Ultrasonic bolt measurement is a precise, non-destructive method used to measure bolt tension and elongation in critical bolted joints. Unlike torque-based methods, ultrasonic testing measures the actual clamping force, ensuring safety, reliability, and compliance with industry standards.

Our ultrasonic bolt measurement solutions are ideal for industries where bolt preload accuracy is critical, including power generation, oil & gas, aerospace, nuclear, and construction.

How Ultrasonic Bolt Measurement Works

Ultrasonic bolt measurement uses high-frequency sound waves transmitted through the bolt:

• A transducer sends an ultrasonic pulse through the bolt length
• The pulse reflects from the bolt end
• The system measures the time-of-flight change
• Bolt elongation is calculated and converted into accurate tension values

This method eliminates errors caused by friction, lubrication, or surface conditions