The ultrasonic flaw detector UD4-T "Tomographic" is a technological know-how that continues a series of the widely used flaw detector-tomograph UD4T (UD4-C), including its conceptual and methodical solutions:
Automatic TCG (Time Corrected Gain)setting.
Probe certification (measurement of actual parameters of every applied probe).
Measurement of acoustic properties of testing object materials without any additional metrological equipment.
Visualization of the defect position within a metal layer or in a welded joint.
Direct measurement of equivalent defect square.
Estimation of the defect configuration and sizes.
The digital technologies used in the UD4-T "Tomographic" allow to implement a set of different purpose ultrasonic facilities in one device, which completely meet the user requirements. Separate application software is selected and activated via the user "menu" likewise Windows where every task is a self-contained ultrasonic device: Flaw Detector, Thickness Gauge, Tensometer, etc.
The flaw detector UD4-T "Tomographic" also provides the "multitask" mode when several UT applications can operate simultaneously (background): the user, operating the flaw detection can also operate the thickness gauging modes and vice versa.
The flaw detector UD4-T "Tomographic" is finely combined with different specialized NDT equipment; it has a wide set of accompanying accessories: distance sensor, acoustic scanner, optical system for binding of probe coordinates, as well as other means of coupling and visualization. One of the last development is the video scanner function intended to visualize the testing process in hard-to-reach places. Use of the video camera enables to display simultaneously the tested area and transducer signal on the device screen.
Flexible functionality, simple setting and operation convenience make UD4-T "Tomographic" to an irreplaceable tool for all types of non-destructive testing. It allows to give up the specialized flaw detectors, unify the device base, metrological provision and improve in general the testing accuracy and efficiency.
UD4-T "Tomographic" distinctive features
Wide frequency range with fine adjustment from 0,2 to 10MHz
Two independently controlled gates (A and B).
Automated or manual building of the TCG curve (till 256 points).
Two signal notation types: rectified and radio.
Building and processing the A, B and D (TOFD) scans.
Modes: "Waveform", "Freeze" and Ray path display.
Windows compatibility of application software.
Automated determination of ultrasonic vibrations velocity within different materials and prism delay. Database of ultrasonic vibrations propagation velocities.
Built-in tracking system of the acoustic contact for all applications.
Technological advantages of the modern, serviceable device
Expanded dynamic range up to 140dB enables to detect both small and large flaws without switching the sensitivity;
Programmable generator (synthesizer) allows to optimal selection of the monitoring pulse form for the probes, having different characteristics. It increases significantly the sensitivity and improves the flaw detectability;
Digital data processing allows to improve effectively the testing quality and accuracy:
Compensation of the reverberation and noise characteristic for detection of shallow subsurface flaws;
Fourier analysis of the received signal for visualization of the acoustic path parameters;
Digital filters, etc;
Specialized applications
UD4-T "Tomographic" provides support and implementation of branch testing procedures, which are included into the device composition as separate applications, working independently from each other:
Integrated macros language enables to develop and download new user application for automated testing of nonstandard and complex objects.
Bright color display, maximum information
Color TFT display with high contrast and resolution provides a sharp image under different illumination;
Full-screen scan mode allows to use the whole screen area for the better data visualization;
Convenient intuitive menu enables the user to set the device quickly and effectively carry out the testing procedure.
Interface capabilities
Built-in RS232 interface allows to perform quick transmission of the saved data into PC. The specialized "Operator's workbench" software represents the data in an easy readable form and generates testing reports;
Software and hardware support of the infrared port (IRDA) and Ethernet interface (TCP/IP) provides the interaction with the external peripheral and technological equipment;
Software update
The company policy gives an opportunity to update software as soon as a new version appears.
Technical characteristics
Operating frequency range
0,4 .. 10MHz
Measured depth range
0,5…5000mm (+0,1mm+L/1000mm) where L-occurrence depth
The digital technologies used in the UD4-T "Tomographic" allow to implement a set of different purpose ultrasonic facilities in one device, which completely meet the user requirements. Separate application software is selected and activated via the user "menu" likewise Windows where every task is a self-contained ultrasonic device: Flaw Detector, Thickness Gauge, Tensometer, etc.
