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Knight Optical offer a range of Stock Sapphire Windows, and custom for use within Airborne LiDAR Systems. These are systems used in surveying for topographical measurements. The data accumulated can be used to generate a Digital Terrain Model or a Digital Elevation Model which are 3D representations of terrain. Sapphire (Al2O3) is one of the hardest minerals and optical materials available for use in the range from UV up to 5µm. Making it ideal as a protective window for airborne systems which may be utilised in harsh environment or against birds! Sapphire is grown by various methods from seed samples. Sapphire can be polished to a high standard, but as it is the second hardest mineral on Earth it must be subject to high forces to polish. Therefore, windows made from Sapphire must have a thickness to diameter ratio of at least 10:1, that is, greater For more information read PDF….

Cygnus DIVE is a wristmountable underwater ultrasonic thickness meter that has been designed for the professional diver and can be worn on the forearm, providing an invaluable free hand whilst performing an in water survey (IWS). It has a large bright display for easy viewing from all angles, by the diver and his camera/surface crew, even in poor visibility. Cygnus DIVE also hosts an array of other key features, such as Ascan to help verify measurements; data logging that enables hasslefree reporting and analysis; MSI™ to verify stable measurements; and AutoLog for automatically logging measurements without having to press any buttons. The Cygnus DIVE uses the multipleecho technique (approved by Class Societies) for accurate, reliable thickness measurements through coatings up to 20mm thick. This unit also incorporates singleecho and echoecho modes used for extreme corrosion and pitting, making it one of the most versatile underwater thickness gauges on the market.

Designed for taking reliable thickness measurements in Zone 0 Explosive Atmospheres, the Cygnus 1 Ex is certified intrinsically safe to ATEX, IECEx, UKEX for Zone 0 and NRTL for Class 1, Division 1. The Cygnus 1 Ex boasts advanced data logging, manual measurement mode, features a large colour LCD display and offers 3 measuring modes for through-coat measurements and various materials - including heavily corroded metals.

DWL-8500XY is a 2-Axis ultra precision inclinometer with built-in Vibrometer, having resolution and accuracy of 1 arcsec. or 5µm/M and wide measuring range for precision leveling, plane angle measurements, surface 2D profiling & alignment tasks, and capable of real-time wireless Bluetooth/USB remote measuring & data logging. The accuracy performance is verified by accredited calibration & test bodies in Japan & Singapore National Metrology Center, under ILAC & A2LA certifications traceable to NIST, JIS & DIN.

DWL-2000XY, DWL-3000XY & DWL-3500XY are 2-Axis precision Digital Levels with high accuracy and wide measuring range of levelling, angle, alignment & vibration measurements, capable of real-time remote USB/wireless measurement & data logging. The accuracy performance is verified by accredited calibration & test bodies in USA, Japan & Germany traceable to NIST, JIS & DIN. These instruments are exceptionally engineered to greatly simplifying the task of precision engineering professionals & tradesmen in installation, setting up & maintenance of very high precision CNC machines, test instruments & alignment-sensitive equipment.