OPPA32 is particularly well suited for ultrasonic measurements as well as other kinds of measurements which need many channels. Together with the card OPCARD 2.0 or OPBOX 2.0 and ultrasonic probes it could be used as complete ultrasonic testing device. Each channel has separate pulser &
receiver. Specific equipment predisposes it to work in phased array mode.

The multiplexer together with OPCARD 2.0 - PCI-bus Ultrasonic Card
or OPBOX 2.0 - Ultrasonic testing box, becomes complete ultrasonic testing device. Multiplexer operates with 32 ultrasonic transducers, and thus has 32 independent transmitting and receiving channels. Each channel is equipped with individual delay lines, which can be programmed so that the pulse transmitter on the channel is being shifted in time relative to other channels.

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Features:

- 32 independent transmitting - receivingchannels;
All channels may be used at once for beam forming;
- USB or RS232 control interface
- BNC Trigger Input
- BNC Signal output
- 12V/2A power supply

Together with OPCARD 2.0 or OPBOX 2.0 and delivered Software Package:

- many phased array ways of measurement
- various image processing:
- conventional phased array processing,
- SAFT,
- CUDA.

Technical data:

Channels: 32
Internal Gain: 13dB
Pulse Voltage: off(0V) to 360V (positive pulse, short circuit step pulser)
Charging time: 3us
Bandwidth: 0.5 MHz - 20 MHz (- 3dB)
Fall Time: <=20 ns
Pulse Duration: Short circuit, bandwidth up to about 50MHz
Time shift channel-to-trigger range 0 - 3888.75 us with 0.25ns resolution

Some of profits resulting from the use of Phased Array technology

 

Principle of beam focusing by flat probe.
The delay value of each elements depends
on the aperture of the elements, type of wave, refracted angle, and focal depth.
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oppa2 Example of linear scan performed by focused beam. Scanning is made at a constant angle along the probe length by a group of active elements.
Principle of sectorial scan. This is the most often format for medical sonograms as well as for industrial images. The sound beam sweeps through a series of angles to generate a cross-sectional image. oppa3