SPAN

OEM-IMU-EG370N

COMMERCIAL, MEMS IMU WITH

HIGHER DATA RATE AND IMPROVED

ACCURACIES INTEGRATES WITH

SPAN TECHNOLOGY TO 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 System (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 EG370N is a Micro Electromechanical System (MEMS) IMU from Epson. It

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

EG370N enables high data rate, 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.

Low noise commercial grade gyros

and accelerometers

Small size and lightweight

INS data rates up to 200 Hz

Direct SPI interface to OEM7

receivers

SPAN INS functionality

Non-ITAR IMU

If you require more information about our

SPAN products, visit www.novatel.com/span

FEATURES

OEM-IMU-EG370N

SPAN SYSTEM PERFORMANCE

Horizontal Position Accuracy

(RMS)

Single point L1/L2 1.2 m

SBAS

60 cm

DGPS 40 cm

TerraStar-L

3, 4

40 cm

TerraStar-C PRO

3, 4

2.5 cm

RTK 1 cm + 1 ppm

Data Rates

IMU measurement 200 Hz

INS solution Up to 200 Hz

Time Accuracy

20 ns RMS

Max Velocity

515 m/s

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.

IMU PERFORMANCE

Gyroscope Performance

Technology MEMS

Input range ±450 deg/sec

Rate bias stability 0.8 deg/hr

Angular random walk

0.06 deg/√hr

Accelerometer Performance

Range ±10 g

Bias stability 0.01 mg

Velocity random walk

0.025 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

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 0.015 0.010 0.013 0.013 0.070

SP 1.00 0.60 0.015 0.010 0.013 0.013 0.070

0.01 0.02 0.010 0.010 0.005 0.005 0.011

10 s

RTK

0.15 0.10 0.040 0.020 0.022 0.022 0.085

SP 1.15 0.70 0.040 0.020 0.022 0.022 0.085

0.02 0.02 0.010 0.014 0.005 0.005 0. 011

60 s

RTK

5.00 1.00 0.220 0.035 0.035 0.035 0.120

SP 6.00 1.60 0.220 0.035 0.035 0.035 0.120

0.17 0.06 0.013 0.015 0.005 0.005 0.013

PERFORMANCE DURING GNSS OUTAGES

For the most recent details of

this product: www.novatel.com/

products/span-gnss-inertial-

systems/span-imus/span-

mems-imus/oem-imu-EG370/

novatel.com

sales@novatel.com

1-800-NOVATEL (U.S. and

Canada) or 403-295-4900

China 0086-21-68882300

Europe 44-1993-848-736

SE Asia and Australia

61-400-883-601

Version 0D Speciﬁcations subject to change

without notice.

NovAtel, NovAtel CORRECT, SPAN and

Inertial Explorer are registered trademarks of

NovAtel Inc.

D24940 September 2019

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.