Overview
Precise Photonic FOG-based Non-ITAR IMU Provides the Performance Needed for Demanding Environments and Applications
The new TAC-450-360 IMU is the one of premier inertial measurement units offered by EMCORE. Designed to deliver the highest level of performance in EMCORE’s TAC450 IMU product line, the non-ITAR TAC-450-360 IMU includes EMCORE’s exclusive photonic integrated chip (PIC) technology. PIC technology provides more efficient fiber optic gyros (FOGs) over traditional open-loop FOG technology by replacing previously high-touch optical components with a single precision-manufactured silicon chip. The TAC-450-360 IMU is fully configurable by the end-user and is available with a wide range of high-performance MEMS inertial-grade accelerometers.
The high-end inertial-grade accelerometers in the TAC-450-360 reduce lateral drift in dead reckoning applications and improve the stability of orientation and attitude measurements in applications requiring challenging stabilization and precision pointing needs. The TAC-450-360 IMU with 30g accelerometers is ideal for highly dynamic applications or in high acceleration, vibration, or shock applications.
The TAC-450-360 IMU leverages EMCORE’s tactical-grade photonic FOG technology to offer excellent shock and vibration tolerance over competing technologies. These tactical-grade FOGs are integrated with three low noise, high-performance inertial-grade MEMS accelerometers, and a three-axis magnetometer for automatic gyro bias compensation even in environments with strong local magnetic fields. The premium performance TAC-450-360 IMU is designed for systems and applications where low Angle Random Walk (ARW), bias instability, high scale factor accuracy, very high bandwidth, and low latency are critical parameters for success.
PIC Technology for Excellent Performance
EMCORE’s exclusive PIC technology uses an integrated planar optic chip, resulting in a sensor that delivers robust performance and survivability in demanding environments. With three integrated tactical-grade photonic FOGs at its core, the TAC-450-360 IMU
provides the critical precision navigational support that autonomous navigation and other applications demand.
Improved SWaP for Ease of Integration
The high-performance EMCORE TAC-450-360 offers great SWaP in a sturdy, compact package. Designed for drop-in replacement for many available IMUs, the TAC-450-360 IMU’s programmable message outputs simplify the integration of the TAC-450 system. This inertial sensor offers ease of integration for designers of higher-level inertial navigation, guidance, and stabilization systems by providing user-selectable features, including an adjustable baud rate to adjust communication latency to receive accurate, timely data.
Ideal applications for the TAC-450-360 IMU include challenging environments such as autonomous ground vehicles, unmanned aircraft, autonomous material movers, autonomous robots, pipeline inspection guides, mobile mapping systems, and stabilization systems for LiDAR and radar and high-speed gimbals.
Features
- Non-ITAR and compliant with EU import regulations
- Exclusive EMCORE PIC technology
- Available with 10g, 16g, 30g and 100g inertial MEMS accelerometers
- Three tactical-grade photonic gyros
- High scale factor accuracy
- Increased efficiency with modern processing electronics
- Backward compatible with existing EMCORE IMUs/FOG equipment
- Extremely high bandwidth (≥1000 Hz)
- User-programmable update rates from 1 to 5000 Hz
- User-configurable baud rate from 9.6 Kbps to 4.1 Mbps
- Three-axes magnetometer for magnetic field compensation of gyro bias
Applications
- Extremely demanding autonomous platforms
- Pipeline inspection maintenance
- Drilling and mining
- High-speed gimbal stabilization
- Stabilization systems for LiDAR, EO/FLIR
- GNSS-aiding inertial navigation
- Manned and unmanned platform stabilization and navigation
- Augmented reality and mobile mapping
- Guidance and control
- Precision pointing and positioning
Technical Specifications
| Performance Specifications – Gyros | |
| Input Rate: | ±490°/sec (max) |
| Bias Instability (25°C): | ≤0.05°/hr, 1σ (typical) ≤0.1°/hr, 1σ (max) |
| Scale Factor Non-linearity (full rate, 25°C): | ≤50 ppm, 1σ (typical) |
| Angle Random Walk (ARW) (25°C): | ≤0.012°/√hr (≤0.7°/hr/√Hz) |
| Performance Specifications – Accelerometers | |
| Input Range (max): | ±10g (10g), ±16g (16g), ±30g (30g), ±100g (100g) |
| Bias Instability (25°C): | 15 μg, 1σ (10g); 24 μg, 1σ (16g); 45 μg, 1σ (30g), 150 μg, 1σ (100g) |
| Velocity Random Walk (25°C): | 34 μg/√Hz (10g), 54 μg/√Hz (16g), 102 μg/√Hz (30g), 340 μg/√Hz (100g) |
| Bandwidth (-3 dB): | ≥200 Hz |
| Performance Specifications – Magnetometers | |
| Input Range (max): | ±10 Gauss |
| Bias: | <0.2 Gauss |
| Bias Noise (rms): | <2 mGauss |
| Environment | |
| Operating Temperature: | -40°C to +75°C (-40°F to +167°F) |
| Operating Shock (11 ms, sawtooth): | 9g (10g), 15g (16g), 28g (30g), 28g (100g) |
| Operating Vibration (20-2000 Hz, random): | 8g rms (10g), 10g rms (16g), 12g rms (30g), 12g rms (100g) |
| Electrical/Mechanical | |
| Data Interface: | RS-422 Full Differential, Asynchronous or Synchronous |
| Dimensions: | 88.9 mm Dia x 63.5 mm H (3.5 in x 2.5 in) |
| Weight: | 0.59 kg (1.3 lbs.) |
| Power Consumption: | 5 W (typical), 8 W (max) |
Ordering
The TAC-450-360 photonic IMU from EMCORE is available through Canal Geomatics. If you would like to learn more about it, please use the Request Pricing form to get in touch with us.
