TMTeck Instruments Co., Ltd.

Of all the applications of industrial ultrasonic testing, flaw detection is the oldest and most commonly used technique. Generally, sound waves of high frequency are reflected from flaws and generate clear echo patterns. Portable flaw detector record and display these echo patterns. Ultrasonic testing is a safe testing method that is widely used in various service industries and production process, particularly in applications where welds and structural metals are used. Sound waves are mechanical vibrations that pass through a medium such as liquid, solid or gas. These waves pass through a medium at a particular velocity in an expected direction. When these waves bump into a boundary having a different medium, they are transmitted back. This is the principle behind ultrasonic flaw detection. Most Ultrasonic flaw detector use frequencies between 500 KHz and 10 MHz per second. At frequencies in the megahertz range, sound energy travels easily via most common materials and liquids