JBW-H series instrumented impact tester is adopts advanced foreign technology and cooperate with China National Engineering & Physical research institute to developed a new products. Instrumented impact tester is measuring the impact value, collect and analysis the impact process data, figure energy curve, then supply details data for engineers to study and analysis material character. Through the force sensor (range 0-40KN) and the intelligent data acquisition system, the force-time curve of the impact process can be collected in real time.

The impact testing machine commonly referred to is the Charpy notch impact testing machine, which operates on the principle of the pendulum impact testing machine, with its counterpart being the drop weight impact testing machine. As electronic technology has advanced and materials science has progressed, the testing requirements for various new materials have become increasingly stringent, leading to the emergence of oscillographic impact testing machines, also known as instrumental impact testing machines, which essentially reflect the dynamic tearing process of materials. The oscillographic impact testing machine system is the world's most precise dynamic load measurement system. By using strain gauges, the instrumental impact hammer measures the force applied during the impact process, offering multiple advantages, the most important of which is determining force and energy. For the pendulum impact testing machine, energy is determined through a photoelectric encoder and independently using the oscillographic impact hammer. In addition to measuring energy, other data can also be obtained (i.e., data beyond absorbed energy), such as characteristic load, deflection, and energy.

This impact tester is mainly consist of automatically high and low temperature device (optional), auto-feeding system, and impact tester load frame, can be used test, analysis the accuracy material anti-impact performance. Tester is controlled by computer, rising pendulum, hang pendulum, impact, stop all controlled by PC.

What's the difference between general impact test and instrumented impact test? 

Traditional Charpy impact tests only measure the energy required for the specimen to rupture, but they do not provide a failure mechanism or cause the finished product to fail. Instrumented impact tests provide curves generated by high-speed stress-strain data, through which they can distinguish between toughness and brittle failure, as well as the energy that causes cracks and the energy transferred, and can also give many graphs expressing the subtle differences in the toughness of the specimen. Nowadays, more and more products involve reliability testing, which promotes the development of impact testing in the direction of instrumented impact. 

According to standards: 

ISO 14556:2000 "Steel-Charpy V-notch pendulum impact test-Instrumented test method"; GB/T19748-2005 "Instrumental Test Method for Impact Test of Charpy V-Notch Pendulum for Steel"; 

GB/T3808-2002 "Inspection of Pendulum Impact Tester"; 

GB/T229-2007 "Impact Test Method for Metal Charpy Notch"; 

GB/T18658 "Standard Specimen of Charpy V-Notch for Pendulum Impact Tester"; 

ASTM E23

ASTM E23 “Standard Test Methods for Notched Bar Impact Testing of Metallic Materials”

ISO 14556 “Steel -- Charpy V-notch pendulum impact test -- Instrumented test method”
GB/T19748 etc.,