Overview
The KVH 1725 IMU is a cutting edge inertial measurement unit by KVH Industries. It combines three DSP-1750 gyroscopes with three low-noise MEMS accelerometers to create a high-performance device that accurately measures velocity and orientation for a variety of navigational applications including: unmanned platforms, precision stabilization systems and high accuracy mobile mapping.
The KVH 1725 IMU is a game-changing 6-degrees-of-freedom (6-DOF) sensor that delivers the high performance and stability of KVH’s fiber optic gyros (FOGs) at MEMS prices. It joins KVH’s array of advanced inertial sensors designed to meet the demanding needs of a wide range of navigation and stabilization applications.
Like KVH’s highly successful 1750 IMU, the 1725 IMU leverages the technology of three DSP-1750 FOGs, the world’s smallest high-performance FOG, integrated with three low-noise MEMS accelerometers. This low-cost/high-performance IMU is ideal for manned and unmanned platforms, as well as navigation or stabilization systems where low cost, high performance and high bandwidth
are critical for success.
The 1725 IMU weighs less than 0.7 kg (under 1.45 lbs.) and is a compact package designed for easy integration in higher-level systems. The flexible interfaces and programmable message outputs, baud and data rates make the 1725 IMU highly versatile so as to address the needs of a broad range of demanding applications such as inertial navigation systems for unmanned platforms, precision stabilization systems for radar and optical systems, precision pointing and stabilization systems for antennas and weapons platforms, as well as high-accuracy mobile mapping systems.
The 1725 IMU is highly adaptable, featuring RS-422 asynchronous communication with user programmable data output rates from 1 to 1000 Hz. With its high bandwidth and low noise, the 1725 IMU can provide the data output required for challenging applications, and still help keep program costs low. KVH’s 1725 IMU makes the traditional tradeoff between performance and price obsolete. From unmanned aerial vehicles to radar stabilization, the 1725 IMU stands up to the test and can easily replace more expensive units with lower performance.
Features
- High bandwidth for demanding dynamic applications
- Low noise
- Superior shock and vibration performance
- 3 high-performance KVH FOGs provide superior, reliable performance
- 3 high-quality MEMS accelerometers
- High accuracy 6-degrees-of-freedom angular rate and acceleration data
- Versatile interfaces
- Compact size
Applications
- Unmanned commercial and defense platforms (ground/aerial/marine surface/submersible)
- Antenna and camera system stabilization
- EO/FLIR system stabilization
- GPS/GNSS-aiding inertial navigation
- Mobile mapping systems
- Motion sensing systems
- Targeting and pointing systems
- Navigation, guidance, and positioning
Technical Specifications
| Performance | |
| Input Rate (max): | ±490°/sec |
| Bias Instability (25°C): | ≤1°/hr, 1σ |
| Bias vs. Temp. (≤1°C/min): | ≤4°/hr, 1σ |
| Bias Offset (25°C): | ±5°/hr |
| Scale Factor Non-linearity (max rate, 25°C): | ≤200 ppm, 1σ |
| Scale Factor Non-linearity (≤1°C/min): | ≤300 ppm, 1σ |
| Angle Random Walk (25°C): | ≤0.017°/√hr (≤1°/hr/√Hz) |
| Bandwidth (-3 dB): | ≥440 Hz |
| Electrical/Mechanical | |
| Initialization Time (valid data): | ≤3 sec |
| Data Interface: | Asynchronous or Synchronous RS-422 |
| Baud Rate: | Selectable 9.6 Kbps to 921.6 Kbps |
| Data Rate: | User Selectable 1 to 1000 Hz |
| Dimensions (max): | 88.9 mm Dia x 73.7 mm H (3.5 in x 2.9 in) |
| Weight (max): | 0.7 kg (1.45 lbs) |
| Power Consumption: | 8 W (max), 5 W (typical) |
| Input Voltage: | +9 to +36 VDC |
| Environment | |
| Operating Temperature: | -40°C to +75°C (-40°F to +167°F) |
| Operating Shock Limit: | 9 g, 11 msec, sawtooth |
| Operating Vibration Limit: | 8 g rms, 20-2000 Hz random |
| Accelerometers | |
| Input Limit (max): | ±10 g |
| Bias Instability (constant temp): | <0.1 mg, 1σ |
| Scale Factor Temperature Sensitivity: | 100ppm/°C, 1σ |
| Velocity Random Walk (25°C): | ≤0.12 mg/√Hz (0.23 ft/sec/√hr) |
| Bandwidth (-3 dB): | ≥200 Hz |
Video
Ordering
The 1725 IMU from KVH Industries is available through Canal Geomatics. If you would like more information about this product, please do not hesitate to send us your inquiry by completing the Request Pricing form.
