SPAN

IMU-µIMU-IC

HIGH PERFORMING MEMS IMU

COMBINES WITH NOVATEL’S GNSS

TECHNOLOGY TO PROVIDE 3D POSITION,

VELOCITY AND ATTITUDE SOLUTION

SPAN: WORLD-LEADING GNSS+INS TECHNOLOGY

Synchronous Position, Attitude and Navigation (SPAN) technology brings together two

dierent but complementary technologies: Global Navigation Satellite Systems (GNSS)

positioning and inertial navigation. The absolute accuracy of GNSS positioning and the

stability of Inertial Measurement Unit (IMU) gyro and accelerometer measurements

are tightly coupled to provide an exceptional 3D navigation solution that is stable and

continuously available, even through periods when satellite signals are blocked.

OVERVIEW

The µIMU features Northrop Grumman Litef GmbH’s proven inertial measurement

technology oering exceptional performance when paired with a NovAtel SPAN

enabled receiver. The µIMU interfaces with NovAtel’s OEM6 and OEM7 receivers

through a highly reliable IMU interface. IMU measurements are used by the SPAN

receiver to compute a blended GNSS+INS position, velocity and attitude solution at up

to 200 Hz. Small size, low weight and power consumption makes the µIMU ideal for

heading reference, ﬂight control and stabilization applications.

The IMU-µIMU is available as a complete assembly in an environmentally sealed

enclosure. The µIMU is also available as a stand alone OEM product that can be easily

paired with a SPAN enabled GNSS receiver.

IMPROVE SPAN ACCURACY

Take advantage of NovAtel CORRECT™ to receive your choice of accuracy and

performance, from decimetre to RTK-level positioning. For more demanding

applications, Inertial Explorer® post-processing soware from our Waypoint® Product

Group can be used to post-process SPAN IMU-µIMU data to oer the highest level of

accuracy with the system.

Fully commercial MEMS IMU

Continuous, stable positioning

Easy integration with NovAtel’s

OEM6 and OEM7 series GNSS+INS

receivers

Ideal for aerial and hydrographic

survey as well as industrial

applications

FEATURES

MEMS gyros and MEMS

accelerometers

200 Hz data rate

10-34 VDC power input

SPAN GNSS+INS functionality

If you require more information about our

SPAN products, visit www.gnss.ca

BENEFITS

SPAN SYSTEM PERFORMANCE

Horizontal Position Accuracy

(RMS)

Single point L1/L2 1.2 m

NovAtel CORRECT

» SBAS

60 cm

» DGPS 40 cm

» PPP

3, 4

TerraStar-L 40 cm

TerraStar-C 4 cm

» RTK 1 cm +1 ppm

Data Rate

IMU measurements 200 Hz

INS position 200 Hz

INS velocity 200 Hz

INS attitude 200 Hz

Time Accuracy

20 ns RMS

Max Velocity

515 m/s

IMU PERFORMANCE

Gyroscope Performance

Input range ±499 deg/sec

Bias stability

≤

6 deg/hr

Scale factor error ≤1400 ppm

Angular random walk

≤0.3 deg/√hr

Accelerometer Performance

Range

±15 g

Bias repeatability ≤3 mg

Scale factor error ≤1500 ppm

Velocity random walk

≤0.25 mg/√Hz

PHYSICAL AND ELECTRICAL

Dimensions

130 x 130 x 115 mm

Weight 2.57 kg

Power

Power consumption

11 W (typical)

Input voltage +10 to +34 V

Connectors

Power SAL M12, 5 pin, male

Data SAL M12, 4 pin, female

Wheel sensor

SAL M12, 8 pin, male

ENVIRONMENTAL

Temperature

Operating -40°C to +55°C

Storage -40°C to +80°C

Humidity

MIL-STD-810G(Ch1),

Method 507.6

Random Vibe

MIL-STD-810G(CH1),

Method 514.7 (2.0g)

Environment

MIL-STD-810G(Ch1),

Method 512.6

(IEC 60529 IP67)

INCLUDED ACCESSORIES

• Power cable

• Communication cable

• Wheel sensor cable

OPTIONAL ACCESSORIES

• Mounting plate

• Inertial Explorer post-

processing soware

For the most recent details of

this product:

www.gnss.ca

span-gnss-inertial-systems/

span-imus/micro-imu

gnss.ca

sales@gnss.ca

1-855-OEM-GNSS (U.S. and

Canada) or 778-430-5999

China 0086-21-68882300

Europe 1-855-636-4677

SE Asia and Australia

1-855-636-46771

Version 2 Speciﬁcations subject to change

without notice.

NovAtel, SPAN, Inertial Explorer and Waypoint are

registered trademarks of NovAtel Inc.

NovAtel CORRECT is a trademark of NovAtel Inc.

D21489 March 2017

Printed in Canada.

Statements related to the export of products are

based solely on NovAtel’s experience in Canada,

are not binding in any way and exportability

may be dierent with respect to the export

regulations in eect in another country. The

responsibility for re-export of product from a

Customer’s facility is solely the responsibility of

the Customer.

1. Typical values. Performance speciﬁcations subject to GPS system

characteristics, US DOD operational degradation, ionospheric and tropospheric

conditions, satellite geometry, baseline length, multipath eects and the

presence of intentional or unintentional interference sources.

2. GPS-only.

3. Requires subscription to TerraStar data service. Subscriptions available from

NovAtel.

4. TerraStar service available depends on the SPAN receiver used. See the receiver

product sheet for details.

5. Time accuracy does not include biases due to RF or antenna delay.

6. Export licensing restricts operation to a maximum of 515 metres/second.

7. Supplied by IMU manufacturer.

8. GNSS receiver sustains tracking up to 4 g.

9. Steady state and outage performance remains the same for the -L model.

10. 1 ppm should be added to all values to account for additional error due to baseline

length.

11. Post-processing results using Inertial Explorer soware.

IMU-µIMU-IC

Outage

Duration

Positioning

Mode

POSITION ACCURACY

(M) RMS

VELOCITY ACCURACY

(M/S) RMS

ATTITUDE ACCURACY

(DEGREES) RMS

Horizontal Vertical Horizontal Vertical Roll Pitch Heading

0 s

SP 1.00 0.60 0.015 0.010 0.010 0.010 0.030

RTK

0.02 0.03 0.015 0.010 0.010 0.010 0.030

0.01 0.02 0.010 0.010 0.005 0.005 0.009

10 s

SP 1.10 0.68 0.030 0.013 0.017 0.017 0.038

RTK

0.16 0.10 0.030 0.013 0.017 0.017 0.038

0.01 0.02 0.020 0.010 0.005 0.005 0.009

60 s

SP 4.25 1.25 0.150 0.020 0.025 0.025 0.050

RTK

3.55 0.75 0.150 0.020 0.025 0.025 0.050

0.15 0.05 0.02 0.01 0.006 0.006 0.010

PERFORMANCE DURING GNSS OUTAGES

1,9