Compact, industrial phased array UT & TFM system

Emerald is a compact, phased array ultrasonic system that offers extreme performance. It is designed to handle the most challenging inspection conditions found in oil & gas, power generation, in-service railway, manufacturing, heavy industry, and aerospace.


Unleash the power of Phased Array

Designed with industry leading phased array ultrasound testing (PAUT), total focusing method (TFM) imaging capabilities and time-of-flight-diffraction (TOFD), Emerald delivers fast performance and intelligent results. Featuring exceptional signal quality, it can achieve high amplification without signal distortion.

With real-time multi-TFM processing onboard and offline, combined with full matrix capture (FMC) and plane wave imaging (PWI) data acquisition features, the Emerald phased array system can produce faster and more detailed inspection results than ever before.

Intelligent features

  • Full matrix capture (FMC) up to 128 elements
  • Real-time high-speed multi-TFM onboard processing
  • 64 channel code compliant PAUT
  • Parallel firing and processing PA channels
  • Time-of-flight-diffraction
  • Multi-channel raw FMC encoded data saving
  • High dynamic analog signal amplification range

Experience the Emerald difference for an inspection advantage

Multiple firing modes for more detail: FMC or PWI can be used to acquire data.

Onboard real-time, multi-TFM processing for faster results: With an onboard processing capability of up to 1M+ points per TFM frame and up to eight simultaneous TFM reconstructions, Emerald offers the most versatile and powerful TFM imaging capability in its class. Onboard processing delivers faster and more efficient TFM reconstructions. Save data on an external device for later offline reconstruction.

Multi-channel raw FMC encoded data saving: Data recording up to 128-element apertures and two 64 element DMA (dual matrix array) probes.

Advanced focusing techniques: Sectorial total focusing (STF) combines the advantages of the industry accepted sectorial view presentation with the focusing capabilities of TFM. Live FMC or PWI data is reconstructed generating sectorial sweep with all angles focused in each point along the sound path. The summed A-scan signals are available for each angle, similar to PAUT.

Superior signal quality: With double stage analog amplification circuits and 16-bit resolution digitizing, Emerald can deliver high amplification without signal distortion.

Fast, industrial-grade data throughput: Emerald uses a high-speed five Gigabit per second ethernet link for data transfer with cables up to 100 meters (300 feet) long.

Compact, rugged & scalable: With an IP65 designed enclosure, Emerald can work in almost any industrial environment without external protection. Multiple instruments connected in parallel to the same UltraVision session offer almost limitless capability for complex inspection configurations.

Bipolar pulsers: Penetrate through thick components; bipolar pulsers can deliver up to 40% more acoustic energy for the same gain settings.

Two dedicated UT channels: Up to eight additional conventional channels or four TOFD pairs with the probe splitter module.

Want to see Emerald in action? Book a demo!

Zetec Emerald Industrial PAUT instrument

Driven by industrially proven UltraVision software

UltraVision is a complete PAUT and FMC/TFM inspection package that manages the entire inspection process including probe design (acoustic beam simulation), inspection technique development and validation, high-speed data acquisition, advanced data analysis and comprehensive reporting.

When working with FMC and PWI data, UltraVision offers the most complete set of reconstruction algorithms. Emerald enables access to an UltraVision advanced license when connected to a computer with UltraVision.

Integration and scalability made simpler

With high inspection data throughput and simplified integration, Emerald is built for the most challenging industrial applications.

Emerald’s I/O management is designed to simplify its integration in multi-instrument configurations. Encoder and critical I/O signals can be daisy chained between the instruments to simplify cabling requirements (no need for encoder splitters). Each Emerald unit can support up to three encoders, 12 inputs and nine outputs signals.

While each instrument can fire two parallel apertures up to 32 elements on any number of PAUT probes, one UltraVision session can connect multiple Emerald units simultaneously making Emerald and UltraVision the perfect solution package for complex, multi-probe high speed inspection requirements.

Zetec Emerald Industrial PAUT instrument
Zetec Emerald Industrial PAUT instrument

Probe splitter accessory for added flexibility

With a dedicated probe splitter module, Emerald can connect two 64-element probes simultaneously. The probe splitter module also gives access to eight additional conventional UT channels. It is available with IPEX and ZPAC connectors.

With high inspection data throughput, intelligent features and simplified integration, the Emerald phased array system can unleash inspection performance like never experienced before.

Other best-in-class remote data acquisition instruments

Our product portfolio includes several other high-performance ultrasonic systems:

QuartZ is ideal for inspecting tubes, pipes, plates or forgings, composite materials as well as train wheels, rails, and axles. When combined with UltraVision software’s legendary power and software development kit (SDK) flexibility, QuartZ is the perfect choice for creating custom inspection solutions.

Portable and rugged, ZIRCON offers a 32/128PR phased array configuration and two conventional UT channels for pulse-echo, pitch-catch, or Time-of-Flight-Diffraction (TOFD) inspections in a rock-solid fan-free casing.

DYNARAY is optimal for inspections requiring 2D matrix arrays probes, long sound paths, low-frequency probes, and complex geometries. A range of configurations are available to meet your specific needs, from 64/64 up 256/256. DYNARAY instruments can drive a wide range of probe frequencies, from 0.5 MHz up to 20MHz with a pulser voltage up to 200 Volts.

Zetec Quartz Industrial PAUT instrument



Dimensions (W × H × D)

294 × 162 × 373 mm (11.5 × 6.4 × 14.7 in)

Air Intake



100 to 240 VAC


50 or 60 Hz

Instrument Calibration

Compliant with ISO 18563-1 / ISO 22232-1


IP rating

Designed for IP65

Operating Temperature Range

-10C to 45C (14F to 113F)

Storage Temperature Range

-40C to 70C (-40F to 158F)


Channel configuration

64/128 PR

Maximum applied voltage (50 Ω load)

PA: 150Vpp (Bipolar) / 75V (Unipolar) UT: 200V

Maximum PRF

≤ 30 kHz

Max focal laws




A-Scan/Peak/Conditional data recording

Acquisition triggered on

Free running, encoder position, external signal

Digitizing range


Max data file size

Limited by hard drive


Maximum number of reconstruction channels


Firing modes

FMC, PWI, Sparse

TFM frame size (on board)

1M points

TFM frame size (off line)


Simultaneous FMC channels


Maximum simultaneous TFM frames (on board)

2 (up to 1M points per frame) 8 (up to 256k points per frame)


PA connector

1x IPEX type (2x IPEX or 2x ZPAC with splitter module)

UT connectors

4 x LEMO  00 (8 additional LEMO 00 with splitter module)

Data connectivity

Ethernet 5 GBit/second

Encoder interfaces

3 quadrature-type

I/O capability

12 inputs, 9 outputs

Automated probe detection

Yes (with Eddyfi Technologies' probe ID chip)

Automated scanner detection

Yes (with Eddyfi Technologies' probe ID chip)

I/O and encoder daisy chaining for multi-instrument configurations



Up to 124 dB (0.1 dB step), 76 dB Analog / 48 dB Digital

Input impedance

50 Ω

Bandwidth (-3 dB)

PA: 0.5 to 18 MHz, UT: 0.5 to 22.5 MHz

Data compression

1, 2, 4, 8, 16

Amplitude resolution

14-bit elementary A-Scan, 16-bit PA

Max number of samples


Max A-scan range

65k samples

Measurement gates

6 + 1 synchronization gate (peak, crossing, auto-crossing, homing)

Parallel PA channels processing

Up to 2 channels




Analog / Digital (FIR)

Digitizing frequency

100 MHz

TCG dynamic range

40 dB