Cygnus MINI ROV Underwater Mountable Ultrasonic Thickness Gauge by Cygnus

Cygnus MINI ROV Thickness Gauge
Underwater Mountable, Ultrasonic Multiple Echo

Applications

Designed to mount onto small inspection ROV's.
Metal thickness and corrosion checks on offshore structures, ships and wrecks.
Safety corrosion monitoring of pipelines and storage vessels.
Metal thickness / wear checks on jetties, dock gates, piers and pilings.
Ships classification surveys.
Maintenance and safety checks on bridges.

Advantages

Multiple echo, single crystal probes.
Coatings do not have to be removed - measures only the metal thickness.
Accepted by major classification societies.
No grinding - minimum surface prep.
Measures on rough corroded surfaces.
Speed, accuracy and reliability.
No false readings - repeatable results.
Easy to use - minimum operator training.
Greatly reduced inspection time and cost.
Measures on metals and some other materials.

Features

Pressure tested to 500 m (1,640 ft).
Optional dedicated probe holder to allow measurements on curved or flat surfaces.
Small, lightweight and easy to install.
Only one twisted pair is required to transfer the data to the surface.
Power supply taken locally from the ROV.
Probe does not need to touch the surface under test -- measurements can be taken through 5 mm of water.
Readings are not influenced by probe orientation.
Dedicated software for displaying the measured results, storing the measurements and setting the calibration of the gauge.

Cygnus Multiple Echo Technology

With multiple echo technology, readings are taken by measuring the time delay between any three consecutive backwall echoes. The time T1 (for coating thickness) is ignored. The times T2 and T3 are equal to the time that it takes for sound to travel through the metal. Only by looking at three echoes can the measurements be made for the metal thickness, where T2 = T3.

Specifications

Materials	Sound velocities between 1000 m/s and 9995 m/s.
Range	3 mm to 250 mm with 2.25 MHz probe. 2 mm to 150 mm with 3.5 MHz probe. 1 mm to 50 mm with 5 MHz probe.
Accuracy	± 0.1 mm or ± 0.05 mm
Resolution	0.1 mm or 0.05 mm
Probes	Remote single-crystal, soft-faced compression. 13 mm - 2.25 MHz, 3.5 MHz or 5 MHz 19 mm - 2.25 MHz
Power	7.5 - 30 Vdc @ 150 mA (max)
Size	160 x 62 mm
Weight in air	550 g
Operating Temp.	-10ºC to +50ºC
Communications	Standard RS-422
Warranty	3 years
Surface Requirement	PC or laptop with VGA screen and available COM port.