USB-UT350(T) with USB2.0 Interface


Compatible with laptop and desktop computers

Low cost UT instrument

No external power supply required

Standalone (computer-free) mode

Internal speaker

On-board DSP chip for real-time data processing

All-In-One Design: Pulser/Receiver and A/D converter

On-board encoder counters featuring optional position based data acquisition

40 MBPS high speed data transfer to computer RAM

Distance amplitude correction (DAC)

Up to 50MSPS high-speed A/D conversions

Pulser switch-off during data acquisition for low noise operation

Wide-range dynamic gain

Included UT oscilloscope software for Windows 2000/XP, Win7 and Win10

Windows 2000/XP software development kits for C/C++, Visual BASIC, and LabVIEW


The USB-UT350 ultrasonic inspection device is a combination pulser/receiver and high-speed analog to digital converter for computer USB port. The device generates an electrical pulse which is transmitted to an ultrasonic transducer. The transducer converts the electrical excitation pulse to an ultrasonic pulse which then propagates into the test material or couplant. The transducer also receives the echoes that are reflected back from the interface and converts the ultrasonic pulse back into an electrical signal which is then processed by the on-board receiver and analog to digital converter. This process is entirely adjustable by the end user—configurable properties include: pulse voltage, pulse width, pulse/echo or through transmission mode, receiver gain, rectification, sampling rate, trigger source—internal or external, trigger delay, and gate settings. Oscilloscope software for Windows is included.

One of the unique features of the USB-UT350 is the on-board DSP from Texas Instruments. It is capable of processing data at high speeds for real time peak detection, data compression, spray marker control, as well as factory process control and feedback. Another benefit of the DSP is that the device can also run in standalone operation mode as a remote pulser/receiver and data processing system. When used in standalone operation mode the device does not need to be connected to a computer. The device will remember the stored configuration and operate independently, powered either by an AC adapter or optional battery pack. It is capable of providing feedback through the internal speaker and digital I/O pins to indicate flaws or measurements outside of the specified thickness range.

The optional software development kits enable the user to build their own automated ultrasonic testing system or custom testing machine using industry standard development environments. Possible uses of the USB-UT350 include temperature measurement, flow metering, and medical applications.

The USB-UT350 is designed to meet the majority of ultrasonic requirements while providing a low cost solution. Currently this device features the lowest price for UT inspection devices on the market. The USB-UT350 can be used as a smart flaw detector and thickness gauge with various software running at real-time. Custom software is available for specific applications upon request. Complete C-scan image and TOFD systems based on this low cost device are also available. These systems can be used with laptop computers and provide the user with battery operated portable inspection solutions.


Pulse Voltage        -40V to -300V peak to peak, 256 steps

Pulse Frequency   20 kHz to 12.5 MHz for tone burst pulser

Pulse Width           50 ns to 320 ns in 20 ns for square pulser

Damping                500Ω

Internal Trigger     1 Hz to 1000 Hz in 1 Hz increment

Receiver Gain        0 dB to 80 dB in 0.1dB increments.

Filter                       0.6 MHz to 18MHz fixed

Waveform              Full rectify, + half rectify, - half rectify, or RF

Sampling Rate      50MHz, 25MHz, 12.5MHz, 6.25MHz

Resolution             8 bits (0 to 255)

Waveform Length  1 to 8190

Trigger Source      +external, -external, internal or software

Transducer Range  1 to 10 MHz

Transducer Mode  Single or dual via external switch

USB Connection   USB 2.0 compatible

Connectors 2        BNC connectors: Pulse Out, and Receive In

Post Trigger delay  0 to 16,370 samples in 1 sample step

Dimensions           4-channel: 4.2"x6.1"x1.55” (107mmX155mmX40mm)

                                8-channel: 8.4"x6"x1.75” (213mmX153mmX44mm)

                                16-channel: 8.4"x6"x3.5” (213mmX153mmX88mm)

Power Supply        External power supply: +9V / 1A, or from USB connector

Weight                    1 to 4 pounds

Add-on Options   Distance amplitude correction (DAC)

                                Up to 2 encoder counters

                                16-bit I/O, TRIG IN, sync out, and encoder connector

                                2, 4, 8, 16, and 32 channels

                                Tone burst pulsers

                                EXT TRIG and SYNC OUT BNC connectors

                               100 MSPS equivalent time sampling

                               32K sample memory and waveform length

                               LEMO 00 connector option for TX and RX

                               8 hour 12V battery pack in water tight box

                               Analog signal output 1V peak-peak of RF signal into 50 ohms load with a BNC connector

                               Customize high pass filter

                               Battery monitoring option

                               Flaw detector software

                               Thickness gauge software

                               Windows software development kits for LabVIEW, MS C/C++ and Visual BASIC

Part Numbers:
USB-UT350M16T     16-channel ultrasonic tone burst pulser/receiverwith 50MHz A/D converter   Download PDF data sheet
USB-UT350M8T        8-channel ultrasonic tone burst pulser/receiver with 50MHz A/D converter
USB-UT350M16        16-channel ultrasonic pulser/receiver with 50MHz A/D converter
USB-UT350M8           8-channel ultrasonic pulser/receiver with 50MHz A/D converter
USB-UT350M4           4 channel ultrasonic pulser/receiver with 50MHz A/D converter
USB-UT350M2           2 channel ultrasonic pulser/receiver with 50MHz A/D converter
USB-UT350T               Single channel tone burst pulser/receiver with 50MHz A/D converter          Download PDF data sheet
USB-UT350                 Single channel ultrasonic pulser/receiver with 50MHz A/D converter           Download PDF data sheet
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