VN-100 Surface Mount IMU/AHRS

The VN-100 SMD is a miniature, high-performance Inertial Measurement Unit (IMU) and Attitude Heading Reference System (AHRS). Incorporating the latest MEMS sensor technology, the VN-100 combines 3-axis accelerometers, 3-axis gyros, 3-axis magnetometers, a barometric pressure sensor and a 32-bit processor. Along with providing calibrated sensor measurements, the VN-100 also computes and outputs a real-time 3D orientation solution that is continuous over the complete 360 degrees of motion.

VectorNav Technologies

Dallas, US

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Description

OVERVIEW

Introduced in 2009, the VN-100 was the first Attitude and Heading Reference System (AHRS) on the market to offer calibrated, high-performance, industrial-grade MEMS sensors and quality sensor fusion algorithms in a single surface mount package. At the size of a postage stamp, the VN-100 SMD (surface mount device) is designed to be directly embedded into [your] electronics assembly.

To facilitate development and testing, the VN-100 is available in a Rugged “plug and play” version of the VN-100 SMD. Enclosed in a clamshell precision anodized aluminium enclosure, the VN-100 Rugged offers additional protection of the internal inertial sensors and electronics.

SENSOR SUMMARY

Continuous attitude solution over the complete 360° range of operation
VectorNav Processing Engine (VPE) 2.0 for disturbance rejection, adaptive filtering, dynamic filter tuning
Inputs for external magnetometers or velocity measurements (Airspeed, GPS)
Hard/Soft Iron Compensation
On-board World Magnetic and Gravity Reference Models
Solid-State MEMS inertial sensors
Available with standard (@ 25°C) or full temperature compensation (-40°C to 85 °C)
All sensors are individually calibrated for bias, scale factor, misalignment, and temperature over the full operating range (-40°C to 85 °C)
Up to 1 kHz IMU Data
400 Hz attitude data - Yaw/Pitch/Roll
Coning and sculling integrals (ΔV’s, Δθ’s)
Data output format: ASCII (VectorNav), Binary (VectorNav)
VectorNav Control Center freely available for easy setup, configuration and logging
ITAR-Free

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Specifications

Environment: Min. operating temperature [C]

-40

Max. operating temperature [C]

85

Splashproof casting

N

Water resistant casting

N

Power Supply: Min. Voltage (DC)

3.2

Max. Voltage (DC)

5.5

Power consumption [W]

0.185

Accelerometers: Num. of Accelerometers

3

Range [max g]

16

Resolution [mg]

0.5

In-Run Bias Stability [mg]

0.04

Bandwidth [ Hz ]

260

Non-linearity [ % ]

0.5

Noise

0.14 mg/√Hz

Operational: Max. rotation speed [deg/s]

2000

Other interfaces and additional information

Serial TTL, SPI

Output data formats

Euler Angles, Quaternion, Accel, Gyro, Magnetometer, Heading, Pitch, Roll

Output frequency [ Hz ]

1000

Interface types

Interfaces

Pressure sensor: Pressure sensor

Y

Gyroscopes: Num. of Gyroscopes

3

Range [± ° / sec]

2000

In-Run Bias Stability [ °/ hr]

10

Bandwidth [ Hz ]

256

Non-linearity [ % ]

0.1

Noise

0.0035 °/s/√Hz

Alignment Error [ ± ° ]

0.05

General: Year of initial development

2009

System components

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

Height [mm]

3

Width [mm]

22

Length [mm]

24

Weight [gr]

3.5

Magnetometers: Num. of Magnetometers

3

Range [ ± Gauss ]

2.5

Bandwidth [ Hz ]

200

Non-linearity [ max % ]

0.1

Noise

140 µGauss/√Hz

Additional specifications: Distinguishable features

SWaP-C optimized, surface mount design, calibrated over temperature, inputs for external magnetometers or velocity measurements, onboard gyro drift compensation

Application

Autopilots, Mapping, Antenna Pointing, Heavy Machinery Monitoring, Robotics