Isonic 2005 Ultrasonic Flaw Detector

A-Scan-based inspection using conventional pulse echo, back echo attenuation, and through transmission techniques
Straight Line Scanning and Recording:
- Thickness Profile B-Scan imaging and recording is performed through continuous capturing of wall thickness readings along the probe trace
- B-Scan cross-sectional imaging and recording of defects for longitudinal and shear wave inspection is performed through continuous measuring of echo amplitudes and reflectors coordinates along the probe trace
- CB-Scan horizontal plane-view imaging and recording of defects for shear, surface, and guided wave inspection is performed through continuous measuring of echo amplitudes and reflectors coordinates along the probe trace
- TOFD Inspection – RF B-Scan and D-Scan Imaging
Straight Line Scanning and Recording may use:
- Time-based mode (built-in real time clock)
- True-to-location mode (built-in incremental encoder interface)

For all types of Straight Line Scanning records, the A-Scans are captured for each probe position along probe trace and may be played back and evaluated off-line at postprocessing stage. This unique feature makes it possible off-line defect characterization through echo-dynamic pattern analysis

Thickness Profile B-Scan Data recorded during Straight Line Scanning is presented in the format compatible with various Risk Based Inspection and Maintenance procedures

ISONIC 2005 has practically unlimited capacity for storing of:

Single A-Scans accompanied with corresponding instrument settings
Ultrasonic signal spectrum graphs (FFT) accompanied with corresponding RF A-Scans and instrument settings
Various A-Scans sequence records along with corresponding Thickness Profiles, B-Scans, CB-Scans or TOFD Maps depending on mode of operation selected; each record is accompanied with corresponding instrument settings

ISONIC 2005 complies with requirements of National and International Codes:

Pulse Type:	Positive Spike Pulse / Positive Square Wave Pulse
Initial Transition:	≤5 ns (10-90%)
Pulse Amplitude:	Spike pulse - smoothly tunable (18 levels) 50V … 400 V into 50 Ω at 4 levels of excitation energy Square wave pulse - smoothly tunable (18 levels) 50V … 400 V into 50 Ω
Pulse Duration:	Spike pulse - 10…70 ns for 50 Ω load depending on Energy and Damping setup Square wave pulse - 65…600 ns controllable in 5 ns step with driving of both leading edge and trailing edge of the pulse
Energy (Spike Pulse):	4 discrete energy values / 40 μJ (min) to 250 μJ (max) – at 400V amplitude
Modes:	Single / Dual
Damping:	17 discrete resistances values / 25Ω min to 1000 Ω max
Internal Matching Coil – Probe Impedance Matching:	16 discrete inductivity values / 2 μH min to 78 μH max
PRF:	0 – optionally; 15...5000 Hz controllable in 1 Hz resolution
Optional Sync Output / Input:	Max +5V, τ ≤ 5 ns, t ≥100 ns, Load Impedance ≥50 Ω
Gain:	0...120 dB controllable in 0.5 dB resolution
Advanced Low Noise Design:	93 μV peak to peak input referred to 80 dB gain / 35 MHz bandwidth
Frequency Band:	0.35...35 MHz Wide Band / 34 Sub Bands
Ultrasound Velocity:	300...20000 m/s (11.81…787.4 "/ms) controllable in 1 m/s (0.1 "/ms) resolution
Range:	0.5...3000 μs - controllable in 0.01 μs resolution
Display Delay:	0...3200 μs - controllable in 0.01 μs resolution
Probe Angle:	0…90° controllable in 1° resolution
Probe Delay:	0 to 70 μs controllable in 0.01μs resolution - expandable
Display Modes	RF, Rectified (Full Wave / Negative or Positive Half Wave), Signal's Spectrum (FFT)
Reject:	0...99 % of screen height controllable in 1% resolution
DAC / TCG:	Theoretical – through keying in dB/mm (dB/") factor Experimental – through sequential recording echo amplitudes from variously located equal reflectors 46 dB Dynamic Range, Slope ≤ 20 dB/μs, Capacity ≤40 points Available for Rectified and RF Display
DGS:	Standard Library for 18 probes / unlimitedly expandable
Gates:	2 Independent Gates / unlimitedly expandable
Gate Start and Width:	Controllable over whole variety of A-Scan Display Delay and A-Scan Range settings in 0.1 mm /// 0.001" resolution
Gate Threshold:	5…95 % of A-Scan height controllable in 1 % resolution
Measuring Functions – Digital Display Readout:	27 automatic functions / expandable; Dual Ultrasound Velocity Measurement Mode for Multi-Layer Structures; Curved Surface / Thickness / Skip correction for angle beam probes; Ultrasound velocity and Probe Delay Auto-Calibration for all types of probes
Freeze (A-Scans and Spectrum Graphs)	Freeze All Freeze Peak All signal and spectrum evaluation functions, managing gates and Gain settings are allowed for frozen signals
Encoder Interface:	Built-in interface for incremental mechanical encoder
Imaging Modes:	Thickness Profile B-Scan, Cross-sectional B-Scan, Plane View CB-Scan, TOFD
Encoding:	Time-based or True-to-location (incremental encoder)
Length of one record:	50…20000 mm (2"…800"), automatic scrolling
Method of Record:	Complete raw data recording
Region of Interest:	Controllable over entire Display Delay, Probe Delay, Range, US Velocity and other appropriate instrument settings
Off-Line Image Analysis:	Recovery and play back of A-Scan captured during scanning Echo-dynamic pattern analysis · Defects sizing and outlining Statistical analysis of Thickness / Amplitude data Converting Record into ASCII/MS Excel^® /MS WordÒ formats
Data Reporting:	Direct printout of Calibration Dumps, A-Scans, Spectrum Graphs, thickness profile B-Scans, cross-sectional B-Scans, plane view CB-Scans, TOFD maps
Data Storage Capacity:	At least 100000 sets including calibration dumps accompanied with A-Scans and/or Spectrum Graphs; At least 10000 sets including calibration dumps accompanied with thickness profile B-Scans or cross-sectional B-Scans or plane view CB-Scans or TOFD maps
On-Board Computer	AMD LX 800 - 500MHz
RAM:	512 Megabytes
Flash Memory - Quasi HDD	4 Gigabytes
Outputs:	LAN, USB X 2, PS 2, SVGA
Screen:	6.5" High Color Resolution (32 bit) SVGA 640×480 pixels 133×98 mm (5.24" ×3.86") Sun-readable LCD; Maximal A-Scan Size (working area) – 130×92 mm (5.12" × 3.62")
Controls:	Front Panel Sealed Keyboard, Front Panel Sealed Mouse, Touch Screen
Compatibility with the external devices:	PS 2 Keyboard and Mouse, USB Keyboard and Mouse, USB Flash Memory card, Printer through USB or LAN, PC through USB or LAN, SVGA External Monitor
Operating System:	Windows™ XP Embedded
Power:	Mains - 100…240 VAC, 40…70 Hz, auto-switch; Battery 12V 8AH up to 6 hours continuous operation
Housing:	IP 53 rugged aluminum case with carrying handle
Dimensions:	265×156×101 mm (10.43"×6.14"×3.98") - without battery 265×156×139 mm (10.43"×6.14"×5.47") - with battery
Weight:	2.650 kg (5.83 lbs) - without battery 3.580 kg (7.88 lbs) - with battery

Isonic 2005 instruments are now in use for sub-sea inspection.

To perform sub-sea ultrasonic inspection instrument is placed into underwater ROV (Remotely Operated Vehicle) equipped with terminals for connection of probes, scanners and encoders. Earlier they were old fashioned PC aided instruments inside ROV in use, whicjh were controlled by an operator from the surface boat using RS232 mouse adn keyboard. Operators observed relatively low quality analogue image of the instrument screen , transmitted from video camera additionally installed inside ROV to AV monitor on the surface. Beside low-resolution analogue screen image such old fashioned configurations suffered from inability of having digital data on the surface in real time.

Thanks to Windows XP running in our Isonic 2005 instrument todays embodiment is much more advanced: Isonic 2005 instrument is placed inside ROV; it's probe and encoder connectors are cabled to the appropriate terminals while LAN communicateswith operators laptop on the surface boat. The Operatorobserves the same image as on the instrument screen and fully controls the instrument from his laptop keyboard and mouse enjoying the ability of real time transmission of all digital data from sub- sea inspection.