IMEMS Technology Aurora

$ 0,00

Aurora IMU provides accurate heave motion, velocity, acceleration and angular orientation.
Aurora is built to perform under the most demanding conditions. It combines temperature compensated accelerometers, gyroscopes and magnetometers.
Aurora is a new generation in the Motion Sensors Industry, which combines FPGA & DSP Processor, an advanced distributed parallel calculation algorithm delivers the maximum performance of the unit.
Aurora IMU is available in both OEM and enclosed packages.

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Description

The developed IMU System is a new generation of a motion sensor that combines temperature
compensated, accelerometer, gyroscopes, and magnetometers. It provides accurate heave
motion, velocity, acceleration, and angular rotation.
A traditional adaptive heave model estimates one dominant frequency, thus for a complicated
motion (that combines multiple frequencies) the performance of the period estimation degrades
and the calculation error increase.
To overcome this limitation, the SME offers an enhanced dynamic adaptive filter, in this model
The heave parameter is automatically tuned to better adapt to the change in the motion frequency.

This IMU has these specific tasks:

• Measure Euler angles. roll, pitch, yaw, which is three angles that describe the orientation of a
rigid body in the space with respect to a fixed coordinate system;
• Linear velocities and the linear accelerations;
• Heave motion for marine applications.
Accurate heave measurements are extremely important in the application of marine field to
actively compensate for the wave motion of a ship.
Active heave compensation (AHC) systems require an accurate estimate of the vertical vessel
motion in order to decouple the offshore crane’s lift operation from the motion of the vessel.
In this device, the heave motion is estimated based on measurements from the accelerometers
using an adaptive heave filter. The custom Field Programmable Gate Array (FPGA) guarantees
high accuracy and no latency heave estimation.

Advantages and Innovations
The device offers low cost, high accuracy IMU solutions, achieved by the FPGA & DSP (Digital
Signal Processor) integration in the electronic design.
FPGA offers a whole new level of real-time performance and filtering excellence. The platform is
taking advantage of real hardware circuitry, allowing extremely low latency measurements and
estimation.
With focusing on data processing and noise filtering and not extremely high-cost gyroscopes
and accelerometers the device has achieved high performance at low cost and small size.
An advanced distributed parallel calculation algorithm delivers the maximum performance of the
unit.

Additional information

Year of last update

2019

Max. rotation speed [deg/s]

50

Brand

IMEMS Technology

In-Run Bias Stability [mg]

1

Resolution [mg]

1

Range [max g]

2

Num. of Accelerometers

3

Alignment Error [ ± ° ]

1

Non-linearity [ % ]

5

Bandwidth [ Hz ]

100

In-Run Bias Stability [ °/ hr]

2

Range [± ° / sec]

45

Num. of Gyroscopes

3

Pitch and Roll dynamic accuracy [ ° ]

1

Heading dynamic accuracy [ ° ]

1

Start up time [s]

15

Output frequency [ Hz ]

500

Year of initial development

2017

Max. Voltage (DC)

36

System components

Accelerometer(s), Gyroscope(s), Magnetometer(s)

Height [mm]

65

Width [mm]

75

Length [mm]

75

Weight [gr]

500

Min. Voltage (DC)

7

Power consumption [W]

7

Output data formats

ASCII, BINARY

Non-operating shock tolerance [g]

100

Operating shock tolerance [g]

50

Min. operating temperature [C]

-25

Max. operating temperature [C]

70

Water resistance [m]

10

Other interfaces and additional information

ETHERNET

Addres

IMEMS Technology

Via Vallebernardo 25

04025 Lenola

Italy