SPAN

OEM-IMU-EG320N

COMMERCIAL MEMS IMU

INTE

GRATES WITH SPAN TECHNOLOGY

DELIVER 3D POSITION, VELOCITY

AND ATTITUDE

ABOUT SPAN: TIGHTLY-COUPLED GNSS+INS TECHNOLOGY

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

two dierent but complementary technologies: Global Navigation Satellite System

(GNSS) positioning and Inertial Navigation Systems (INS). The absolute accuracy of

GNSS positioning and the stability of Inertial Measurement Unit (IMU) measurements

combine to provide an exceptional 3D navigation and attitude solution that is stable

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

LOW NOISE COMMERCIAL MEMS

The EG320N is a Micro Electromechanical System (MEMS) IMU from Epson. It

features low noise gyros and accelerometers in a small, lightweight enclosure. The

EG320N enables precision measurements for applications that require low cost, high

performance and rugged durability in a very small form factor. When integrated with

NovAtel’s SPAN technology, this IMU is ideal for size constrained applications that

require accurate 3D position, velocity and attitude (roll, pitch and azimuth) data.

REQUIRE HIGHER 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® Products

Group oers the highest level of accuracy.

Economical

Non-ITAR IMU

Ideal for size constrained

applications

Easy to integrate with OEM7

receivers

FEATURES

Low noise commercial grade gyros

and accelerometers

Small size and lightweight

125 Hz data rate

Direct SPI interface to OEM7

receivers

SPAN INS functionality

If you require more information about our

SPAN products, visit www.gnss.ca

BENEFITS

OEM-IMU-EG320N

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 Rates

IMU measurement 125 Hz

INS solution Up to 125 Hz

Time Accuracy

20 ns RMS

Max Velocity

515 m/s

IMU PERFORMANCE

Gyroscope Performance

Technology MEMS

Input rate (max) ±150 deg/sec

Bias repeatability 0.5 deg/sec

Bias instability 3.5 deg/hr

Angular random walk

0.1 d eg/√hr

Accelerometer Performance

Range ±5 g

Bias repeatability 15 mg

Bias instability 0.1 mg

Velocity random walk

0.05 m/s/√hr

PHYSICAL AND ELECTRICAL

Dimensions 24 × 24 × 10 mm

Weight 10 g

Power

Input voltage +3.3 VDC

Power consumption 0.1 W

Communication Interface

SPI

ENVIRONMENTAL

Temperature

Operating -40°C to +85°C

Storage -40°C to +85°C

Vibration (operating)

MIL-STD-810G,

7.7 g RMS, 20 - 2000 Hz

Shock (operating)

MIL-STD-810G, 40 g, 11ms

Shock (survival) 1000 g,

half sine, 0.5 ms

For the most recent details of

this product: www.gnss.ca

products/span-gnss-inertial-

systems/span-imus/span-

mems-imus/oem-imu-EG320/

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 1 Speciﬁcations subject to change

without notice.

NovAtel, SPAN and Inertial Explorer are registered

trademarks of NovAtel Inc.

NovAtel CORRECT is a trademark of NovAtel Inc.

D21490 April 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. Outage statistics were calculated by taking the RMS of the maximum errors

over a minimum of 30 complete GNSS outages. Each outage was followed by

120 seconds of full GNSS availability before the next outage was applied. High

accuracy GPS updates (ﬁxed ambiguities) were available immediately before

and aer each outage. The survey data used to generate these statistics is

ground vehicle data collected with frequent changes in azimuth (i.e., as normally

observed in ground vehicle environments).

9. 1 ppm should be added to all values to account for additional error due to baseline

length.

10. Post-processing results using Inertial Explorer soware.

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

RTK

0.02 0.03 0.020 0.015 0.020 0.020 0.090

SP 1.00 0.60 0.020 0.015 0.020 0.020 0.090

0.01 0.02 0.015 0.010 0.008 0.008 0.038

10 s

RTK

0.25 0.15 0.065 0.025 0.040 0.040 0.130

SP 1.25 0.70 0.065 0.025 0.040 0.040 0.130

0.01 0.02 0.015 0.010 0.008 0.008 0.038

PERFORMANCE DURING GNSS OUTAGES