DSP-3400 Fiber Optic Gyro

DSP-3100DSP-3400
Product Images: Previous ImageNext Image

Reliable Performance in a Shielded Package
KVH’s DSP-3400 fiber optic gyro (FOG) delivers reliability and robust performance in a durable shielded package. The DSP-3000 offers a digital RS-422 interface and 1000 Hz synchronous output in a precision gyroscope approximately the size of a deck of playing cards. The DSP-3400 FOG is ideal for defense and commercial applications requiring gyro data output to be transmitted over longer distances.

Superior Resistance to Shock and Vibration
When integrated as part of an inertial sensor system, the DSP-3400 helps make lower cost inertial measurement units (IMUs), integrated GNSS/INS and AHRS a reality. This compact, powerful gyro also boasts superior shock and vibration performance critical for the stabilization of weapon platforms of all types.


Contact a Sales Agent! Go
E-mail this page
Indicates a required field
  Yes
  No

Brochures & Datasheets

FAQ

A:

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.

A:
The DSP-3000 family is a commercial-grade gyro.  It was not designed specifically or adapted to military use. Further, no government funds were used in its development. Many of our designs are made robust with MIL STD specifications in mind but the DSP-3000 has not been tested or qualified to meet military standards.

The DSP-4000 is an example of a gyro with the same performance characteristics as the DSP-3000. In this case the gyro has been repackaged specifically for military end use and as such falls under Category XII (e) State Department Classification. It also has undergone military qualification testing.
A:
A rate gyro does not output accumulated angle. Instead, it outputs rate of change of angle. If the accumulated angle is desired, it would have to be integrated externally.
A:
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.
A:
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.
View All

Highlights

  • Commercial Off the Shelf (COTS) product
  • Single-axis FOG, modular design for 1-, 2-, or 3-axis configurations
  • 1° per hour performance
  • Available in three variants – DSP-3000, DSP-3100, and DSP-3400 – for outstanding versatility
  • Exceptional bias stability and scale factor linearity – minimal temperature and power-up errors
  • Excellent reliability: >55,000 hours MTBF, Ground Mobile
  • Robust for a wide variety of applications including platform stabilization, antenna/radar/optics stabilization, IMU, GPS/INS, and AHRS integration

This product is covered by one or more patents.



Featured Highlights

  • If you need a high-performance, dual-axis militarized fiber optic gyro for superior stabilization, consider the DSP-4000 FOG.
  • If you need a compact FOG with a choice of analog, digital, and RS-232 outputs, consider the commercial DSP-3000 FOG.


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."



[X] Close

Oops! You must be logged in to access this information.

Please log in or create an account to receive access to complete information about KVH’s award-winning products and services, including quick and easy downloads of KVH support documentation. It's free and easy and gives you access to the latest info on all of KVH's products.