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CNS-5000 INS

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The versatile, commercial* CNS-5000 combines two complementary technologies – KVH’s fiber optic gyro-based inertial measurement unit (IMU) with NovAtel’s OEMV® GPS precision receiver technology – within a single enclosure. The deep coupling of these technologies within the CNS-5000 optimizes the raw GPS and IMU data, delivering a superior position, velocity and attitude solution. Composed entirely of commercial components, the rugged CNS-5000 meets COTS requirements, minimizing the operational complexities for customers whose products cross international boundaries.

In commercial industries like seaport management, surveying, autonomous vehicles, precision agriculture, and guidance operations, it is crucial to know where staff, equipment, and supplies are located at all times and at a moment’s notice. Through its seamless integration of these two highly reliable navigation systems, the CNS-5000 provides the perfect solution to these needs in a groundbreaking low-cost, small form factor solution designed for 3-D positioning, velocity, and attitude measurement.

*The CNS-5000 is controlled by the Export Administration Act of 1979, as amended (Title 50, USC App 2401 et seq.) and its implementing regulations, the Export Administration Regulations, 15 CFR 730 et seq. Diversion contrary to U.S. law is prohibited.

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Brochures & Datasheets

Document	File Info
BROCHURE - Fiber Optic Gyro (FOG) Product Selector - U.S. format	4 MB / 4 pg
DATASHEET - CNS-5000 - U.S. format	389 KB / 2 pg

Additional Documents, Forms & Pricing

Case Studies	File Info

CASE STUDY - Churchill Navigation Relies on CNS-5000 for Airborne Mobile Mapping - U.S. version	365 KB / 2 pg
CASE STUDY - Frontline Robotics Turns to CNS-5000 to Keep Unmanned Security Vehicles on Track - U.S. Format	238 KB / 2 pg

FAQ

The CNS-5000 is well-suited for what sorts of applications?

The CNS-5000 is designed specifically for demanding commercial applications, such as dynamic surveying, precision agriculture, container terminal management, and autonomous vehicle navigation, where the ability to determine the precise position and orientation of a piece of equipment or a mobile platform is critical.

Are KVH FOGs sensitive to magnetic fields?

Strong magnetic fields have the ability to cause apparent drift in the gyro bias. This is due to the Faraday effect on the laser light in the sensing coil resulting in non-reciprocal light paths. While this effect can be observed in gyros designed for precision inertial navigation systems (drift rates of less than 1 degree per hour), and can be mitigated by the use of mu-metal shielding, there have been no reported problems with KVH FOGs. If your application results in mounting a FOG near a very strong magnetic field (>50 gauss), a practical test to determine sensitivity is suggested.

How does E-Core PM fiber compare to PM fiber created using stress-induced birefringence?

The geometrical birefringence created by the elliptical core is the key to the E-Core fiber's outstanding polarization-maintaining abilities. Because of its design, it is able to maintain its polarization and low-loss characteristics when exposed to physical stresses and temperature-induced changes far better than PM fiber created using stress-induced birefringence. It is the E-Core fiber's stability that makes it an excellent choice for pigtailing optical components.

What enables E-Core PM fiber to maintain the polarization of light so well?

KVH's E-Core fiber offers a number of advantages, including high polarization maintaining ability (greater than 40 dB-m) and low sensitivity to stress and temperature. These features make E-Core fiber ideal for fiber splicing and pigtailing to other optical components in applications where preserving the state of light polarization is critical to the operation of the device.

The geometrical birefringence created by the elliptical core is the key to the E-Core fiber's outstanding polarization-maintaining abilities. Because of its design, it is able to maintain its polarization and low-loss characteristics when exposed to physical stresses and temperature-induced changes far better than PM fiber created using stress-induced birefringence. It is the E-Core fiber's stability that makes it an excellent choice for pigtailing optical components.

The elliptically shaped core region within an E-Core fiber has a significantly higher index than the surrounding cladding, creating the geometrical birefringence necessary to maintain the polarization of the light within the fiber. The E-Core fibers are manufactured using high-grade silica materials and various high-purity dopants. A dual UV-cured acrylate coating is applied to standard fibers, thereby preventing moisture from penetrating the fiber, preserving its strength, and improving its handling characteristics.

DO KVH FOGs meet electromagnetic compatibility requirements?

All KVH FOG products meet the European Community Electromagnetic Compatibility Directive and are approved to display the CE mark. They have been tested for conformance to electromagnetic emissions and susceptibility requirements. The units also meet FCC Part 15.

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Highlights

Take a tour of the KVH Fiber Optic Gyros

Commercial Off the Shelf (COTS) product
Deeply coupled integration of GPS/IMU technology within a single enclosure
Dramatically faster GPS signal reacquisition while maintaining precise inertial navigation.
Patented Digital Signal Processing (DSP) FOGs for high reliability and stable performance
Full 100 Hz position, velocity and attitude sensing
Integrated L-Band tracking capability
RTK, DGPS, Omnistar, and SBAS positioning modes
Proven GPS tracking via NovAtel’s OEMV® GPS receiver
Wheel sensor input for ground applications

This product is covered by one or more patents.

Featured Highlights

Additional Options

Consider the KVH TG-6000 Tactical Grade Inertial Measurement Unit when you need a high-performance, 6 degree-of-freedom, fiber optic gyro-based motion sensing package ideally suited for motion control and GPS-integrated navigation applications.
For applications already equipped with GPS, but requiring a precise, single-enclosure inertial measurement system, check out KVH’s commercial CG-5100 IMU.

Exclusive Technology

DSP Technology
KVH's Digital Signal Processing (DSP) electronics improve fiber optic gyro performance in such critical areas as scale factor and bias versus temperature, scale factor linearity, turn-on to turn-on repeatability, and maximum input rate. The breakthrough DSP design is covered by multiple patents and overcomes the limitations of analog signal processing, virtually eliminating temperature-sensitive drift and rotation errors.*

* This product is covered by one or more patents, including U.S. Patent #6,429,939, "DSP Signal Processing for Open Loop Fiber Optic Sensors."

Manuals

Download the Technical Manual for more details about KVH's CNS-5000*

* To access these manuals, you will be required create an account and/or login to the KVH Customer Support portal.