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>>Vertical Reference Unit with Fiber Optic Gyros, MEMS Accelerometers and integrated Strapdown Processor Model: iVRU-FC-FF

>>MODEL: iVRU-FC-FF

With iVRU-FC-C167 a vertical reference unit is provided for applications which require high accuracy and simple using.
iVRU-FC is a triaxial system with three orthogonal mounted rugged fiber optic gyroscopes, three ultra ruggedised MEMS accelerometers and an integrated powerful micro-processor with 16 bit sensor data digitalisation to provide digital data transmission (CAN, RS232) and extended internal error modelling. As an option also analog output data can be provided. As a further option an internal GPS / magnetometer can be provided as well as a speed sensor interface to achieve higher performance also in difficult environment. Interfaces for platform stabilisation are available on request. Qualification according to MIL-STD-810F and MILSTD- 461E possible on request (iVRU-FC-M).

Three rate gyros and three accels
< 0.003 deg/s bias stability
Hhigh shock resistance due toFOG / MEMS technology
CAN / RS232 / HDLC interfaces
Sync Input / Output available
Navigation and Guidance

Specifications

Gyro Performance

Accel Performance

Sensor Range:

±200 °/s¹

±2 / 10 / 30 g

Bias

< 0.003 °/s (const. temp., short time stability)

< 0.5 / 1 / 5 mg

< 0.01 °/s (OTR, long-term bias, 1 sigma)

< 2.5 / 10 / 30 mg (typ. 0.1% of range)

Resolution:

< 0.001 °/s

< 0.1 mg

Linearity / Scale error:

< 0.2 % / < 0.2 %

< 0.3 % / < 0.3 %

Noise (0-200 Hz):

< 0.1 °/ h (6 °/h/ Hz)

< 15 / 50 / 250 μg/ Hz

Bandwidth:

0 - 200 Hz (option: 300 Hz)

0 - 200 Hz (option: 600 Hz)

g-sensitivity:

none

Attitude / rel. Heading Range:	±180 ° Roll, ±90 ° Pitch, ±180 ° relative Heading
Attitude Accuracy:	< 0.3 / 1.0 / 2.5 ° roll/pitch in static or linear unaccelerated motion (unaided mode) or with velocity aiding (e.g. GPS / odometer option)
Attitude short time stability:	< 0.1 ° (roll, pitch, assumes proper velocity aiding)
Track / Heading Accuracy:	depends on aiding options (if any: GPS and/or 3D magnetometer -> 0.2 - 3 °)
Position / Velocity:	depends on GPS: < 20 m (S/A off), < 0.5 m/s [if GPS available]
Attitude / Heading Resolution:	< 0.01 °
Analog Interface (option):	0 - 5 V (compensated output)
Output:	wx, wy, wz , ax, ay, az (rate and acceleration) Roll, Pitch, delta_Yaw (attitude, rel. heading; option: magnetometer aiding)
Digital resolution:	> 18 bit (internal oversampling > 10 kHz for high resolution applications)
Digital Interface (options):	CAN (up to 1 MBit/s; remote and continuous); Sync-Trigger-Input/Output; RS232 (up to 115,200 Bd); RS422, HDLC
Output Data Rate, Connector:	up to 200 Hz via CAN (400 Hz as an option); MIL-C-38999 III
Temperature:	-40°C - +71°C operating, -56°C - +85°C storage (case temperature)
Power, Start-up-Time, Warm-up:	10 - 34 V DC; approx. 8 W ; < 1 sec ; approx. 3 - 30 sec
Size:	approx. 152.4 x 127 x 130 mm
Weight, Protection:	approx. 1950 grams / IP68
Shock, Vibration:	60 g / 11 ms; 10...2000 Hz / 6 g random (other on request)
Notes: 1. other on request (up to 300 °/s as standard, even > 1000 °/s and high-g-shock possible as special design)