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SMART-6000 Composite Material Detecting System

Composite material and the adhesive-bounded structure have the advantages of light weight, high strength, easy to process molding, good elasticity, temperature resistance, corrosion resisting, etc It is widely used in aerospace, automotive, chemical and other manufacturing Ultrasonic testing, acoustical impedance detecting, acoustical fixed distance transmitting receiving detecting are the common NDT methods used for composite materials and bonded structure There are many types of defects in composite materials and bonded structure, so it’s hard to detect all defects with only one testing method SMART-6000 is an integrated composite materials detecting system with detecting methods of ultrasonic, acoustical impedance, acoustical fixed distance transmitting receiving This instrument is designed with A B C scan, swept frequency, RF, impulse and MIA modes

Main Feature
Technical Parameter
Application

Ultrasonic mode

Ultrasonic testing is widely used in the detection of internal defects of metal, nonmetal, composite materials. For thick composite materials, such as multi-layer metal bonded composite plate, ultrasonic Pulse Echo (non-contacting and contacting) or Through Transmission method is commonly used to detect poor bonding, debonding, holes, etc. inside the material.

Sound sweep frequency mode

20KHz~80KHz electronic sweep is used to excite the transmit transducer of acoustical fixed distance transmitting/receiving probe in sound sweep frequency mode. Different frequencies will work on the workpiece being inspected in many times. And the signals acquired will be linked in two-dimensional coordinate mode according to the order and finally form the sweep frequency image.

RF(Radio frequency) mode

RF mode uses cw steady-state incentives to measure the change of amplitude and phase, this can be used to detect debonding.

Impulse mode

Impulse mode uses short-pulse to excite the transmit transducer. Select the best frequency to make the workpiece generate the biggest bending vibration. When the probe is passed over the poor bonding part, the signal amplitude will be bigger than that on the good bond part.

Acoustical impedance detecting

Acoustical impedance detecting (also known as mechanical impedance analysis - MIA) is a method to change the mechanical impedance reflecting the material vibration performance into load impedance of energy transducer. Since there’s a certain relation between the mechanical impedance and the material structure, by measuring the performance of the energy transducer we can estimate the variation of the material mechanical impedance, and achieve the detection purpose. A drive element generates audible sound waves, sound waves are transmitted to the structural parts through a special probe and stimulate the vibration of the structural parts. A receive element detects the effect of composite material bond variations on probe loading. Acoustical impedance method is typically used to detect the quality of bonding in Honeycomb sandwich plate. Acoustical impedance method does not require for couplant.

SMART-6000 Composite materials comprehensive detecting instrument can be widely used in the in-service non-destructive testing of composite materials and bonded structure in aerospace, auto and chemical manufacturing fields.

In the modern aviation manufacturing field, composite materials have gradually replaced the conventional metallic materials and become a major materials in aircraft manufacturing. For example, the composite materials used for Boeing 787 aircraft of Boeing company has reached 50%. With the wide application of composite materials in aircraft manufacturing, non-destructive testing of composite materials has gradually become more and more important.