DSP-3100 Fiber Optic Gyro

DSP-3100DSP-3100
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High Speed Digital Interface
The DSP-3100 fiber optic gyroscope (FOG) offers defense and commercial engineers a high speed digital RS-422 interface with 1000 Hz asynchronous output. This robust and versatile gyro also features an industry-standard Samtec 26-pin connector. Its small package makes it ideal for integration into systems requirement a compact precision gyro at an affordable price with no sacrifice of performance, reliability or durability.

Versatile Performer
The DSP-3100 gyro is designed for such varied applications as weapon platform stabilization, precision pointing, antenna, optical and high-speed gimbal stabilization and integration into higher level sensors and systems including inertial navigation systems (INS), inertial measurement units (IMU) and Attitude, Heading and Referencing systems (AHRS).


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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.
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Highlights

 
  • Commercial Off the Shelf (COTS) product
  • Single-axis FOG, modular design for 1-, 2-, or 3-axis configurations
  • 1° per hour performance
  • Powerful high-speed RS-422 interface with 1000 Hz asynchronous output 
  • Industry-standard 26-pin connector
  • 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 commercial FOG with a choice of analog, digital, and RS-232 outputs, consider the DSP-3000 FOG.
  • If you require a true RS-422 interface and a 1000 Hz synchronous output in a durable, shielded package, take a look at the commercial DSP-3400 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."



Watch the Video

DSP 3100: Choosing the Right FOG to Meet Your Needs



Manuals

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