MK2E2

The MK2E2 is an 11-DoF IMU that pairs an optical gyroscope built on a photonic integrated circuit with MEMS accelerometers, magnetometers and inclinometers. 78 x 63 x 36 mm, 230 g, 2 W. RS-422 or CAN-FD at up to 500 Hz.

Choose it when GNSS drops out for minutes rather than seconds and heading error is what breaks the solution: heavy machinery and agriculture under canopy, tunnels and pits, marine, and UAVs operating where GNSS is contested. Angle random walk is 0.03 °/√hr against 0.06 on the MK2M2, and the optical axis has no moving mass to walk under vibration. On a 21 minute Montreal road test with GNSS position denied, the MK2E2 finished 5.7 m from truth.

Every unit is factory-calibrated for offset, scale factor and misalignment, plus magnetometer hard and soft iron. In the field you re-run gyro offset at startup and the magnetometer after each re-install.

Key features: Built for the field

Photonic core

The heading axis is built using light technology. No spinning mass and no moving parts, and random walk is 0.03 °/√hr. Insensitive to thermal gradients, EMI, and vibration or shock perturbation.

ITAR-free

Designed and built in Montreal, Canada. No ITAR content. Destination export screening still applies and we clear it before shipment.

Low SWaP

78 x 63 x 36 mm, 230 g, 2 W. RS-422 or CAN-FD at up to 500 Hz, so it drops into the same harness as the MK2M2.

Rugged & sealed

Tested to DO-160 style profiles at 2, 4 and 8 g vibration and 20 g and 40 g shock, Class A emissions, ESD at 4 kV touch and 8 kV air. Sealed to IP57, with IP67 in progress.

Specifications

Performance & Technical Overview

Gyroscopes
Optical Gyro Range (Z)± 250 °/s
Optical Gyro Bias Stability (Z)0.5 to < 1.0 °/hr
Optical Gyro ARW (Z)0.03 °/√hr
MEMS Gyro Range (X, Y, Z)±125 to ±4000 °/s
MEMS Gyro Bias Stability (X, Y, Z)0.5 to < 1.0 °/hr
MEMS Gyro ARW (X, Y, Z)0.06 °/√hr
Accelerometers
Accelerometer Range±2, ±4, ±8, ±16 g
Accelerometer Bias Stability< 15 µg
Accelerometer VRW0.008 m/s/√hr
Magnetometers
Magnetometer Range± 20 G
Inclinometers
Inclinometer Range±0.5, ±1, ±2, ±3 g
Communications
ProtocolRS-422 or CAN-FD
Output Data RateUp to 500 Hz

Electrical & Mechanical Overview

Electrical
Operating Voltage12 to 34 V
Power Consumption2 W
Mechanical
Operating Temperature-40 °C to +85 °C
RatingIP57 (IP67 in certification)
Dimensions (Body)78 x 63 x 36 mm
Dimensions (with Flanges)78 × 80 × 36 mm
Weight230 g

Certifications & Environmental Testing

Ingress Protection
RatingIP57 — IEC 60529:2019 (IP67 in process)
Electromagnetic Compatibility
EmissionsEN 55032 Class A · FCC Part 15 · ICES-003
ImmunityEN 55035 / CISPR 35
Vibration & Shock
VibrationSine sweep 20–2000 Hz up to 8 g peak, all three axes
ShockHalf-sine up to 40 g peak, 11 ms, all three axes