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3DM-CV7-AHRS

The 3DM-CV7-AHRS Inertial Measurement Unit (IMU) and Attitude and Heading Reference System (AHRS) offers tactical grade performance in the smallest and lightest OEM package yet. Each sensor is individually calibrated for optimal performance over a wide range of operating conditions.

 

Our Auto-Adaptive Extended Kalman Filter has been designed from the ground up to deliver consistently reliable measurements in even the most challenging environments. Cutting-edge orientation algorithms, advanced internal time management, and a flexible event triggering system put the 3DM-CV7-AHRS in a league of its own when it comes to price and performance.

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3DM-CV7-AHRS

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Sensor

  • Tactical grade gyro (1.5°/hr bias instability)

  • Fully calibrated over entire temperature range

  • Roll/pitch static accuracy: 0.25°, dynamic accuracy: 0.5°

  • Integrated magnetometer for absolute heading tracking

Operation

  • Onboard Extended Kalman Filter for attitude estimation

  • User-selectable accelerometer and gyroscope range

  • 1 KHz output data rate for all channels

  • Factory supported ROS1 and ROS2 driver

  • PX4 Autopilot driver for drones, rovers, robots, and more

  • SensorConnect software for configuration, control, display, and logging

  • MSCL open source API for easy integration

Package

  • Anodized aluminum mounting base

  • Precision alignment features

  • Compact and low profile

    • 38mm x 24mm x 8.6mm

    • 8.3 grams

    • 18% thinner than the 3DM-CV5 series

    • 20% lighter than the 3DM-CV5 series

  • USB and UART (TTL) interface

  • Identical footprint to 3DM-CV5 series makes for easy upgrades

  • –40 to +85°C operating temperature range

3DM-CV7 Series Data Sheet Data Sheets English
Micro-D to RS232 Communication and Power Cable Accessory Guide English
6212-3010 DEVELOPMENT KIT, RS232, INERTIAL C-SERIES Accessory Guide English
6212-3009 DEVELOPMENT KIT, USB, INERTIAL C-SERIES Accessory Guide English
Craft Cable with Micro DB9 and Flying Leads Accessory Guide English
Micro D-to-USB Communication and Power Cable Accessory Guide English
C-Series Connectivity Board Interface Control Document Mounting Instructions English

Certificates and Approvals

3DM-CV7 Declaration of Conformity (EU) Declaration of Conformity English
3DM-CV7 Declaration of Conformity (UK) Declaration of Conformity English
MicroStrain REACH-SVHC Compliance Declaration Declaration of Conformity English
3DM-CV7-AHRS
Performance Grade Tactical Grade
Features Accelerometer, Gyroscope, Magnetometer
Random Walk Accel: 20 µg/√Hz, Gyro: 0.3 °/√hr
Bias Instability (Gyroscope) 1.5 °/hr
Bias Instability (Accelerometer) 18 μg
Hysteresis Accel bias: 0.6 mg, Accel gain: 125 PPM, Gyro bias: 0.04 °/s, Gyro gain: 1000 PPM
Communication Port Type Samtec FTSH series
Communication Interface TTL serial, USB
Update Rate IMU: 1000 Hz, EKF: 1000 Hz
Inputs/Outputs 4xGPIO
Weight 8.3 g
Weight 0.293 oz
Size 38 mm x 24 mm x 8.6 mm
Size 1.50 in x 0.94 in x 0.34 in
Power Consumption 0.23 W
Input Voltage 3.2 V to 5.2 V
Minimum Operating Temperature -40 °C
Maximum Operating Temperature 85 °C
Minimum Operating Temperature -40 °F
Maximum Operating Temperature 185 °F
MTBF 2002026 h
Sensing Range (Accelerometer) 4 g
Sensing Range (Gyroscope) 250 °/s
Sensing Range (Magnetometer) 8 Gauss
Sensing Range (Pressure) 1260 mbar
Accuracy Roll/Pitch (dynamic): 0.5 °, Roll/Pitch (static): 0.25 °, Heading (static): 0.5 °, Heading (dynamic): 2 °
Ingress Protection Rating Not Rated
Housing Material Aluminum
Software MSCL, ROS, SensorConnect
Mounting Style Embeddable, Screw Down, Precision Alignment
Mouser shop 130-3DM-CV7-AHRS

Everything you need to get started

Access your sensor's comprehensive online user manual. Find detailed setup instructions, calibration procedures, troubleshooting guides, and technical specifications all in one convenient location. 

Software

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InertialConnect Screenshot - GNSS Statuses

InertialConnect is the preferred software solution for MicroStrain inertial sensors. With InertialConnect, you can easily configure your sensors, adjust parameters, upgrade firmware, and deploy preconfigured parameter files. You can also verify sensor outputs with intuitive visualizations, including times eries data, position data, and statuses.

InertialConnect is compatible with both PC desktop and Linux operating systems, making it your go-to solution for precision and efficiency in inertial sensor management.

sensorconnect-without-tag

SensorConnect is the next generation in desktop sensing software.

From configuration of nodes and starting networks, to collecting and analyzing data in real-time, SensorConnect provides a modern, powerful experience with our Wireless, Inertial, and Displacement products.

Using our intelligent data collection and graphing algorithms, you are able to visualize massive amounts of data instantly, and then zoom in on points of interest just as fast.

Built in MathEngine functionality allows for both real-time and post-processed math, such as generating FFTs, averages, RMS, etc.

SensorCloud Laptop and Desktop

SensorCloud is a unique sensor data storage, visualization, and remote management platform that leverages powerful Cloud computing technologies to provide excellent data scalability, rapid visualization, and user programmable analysis.

MicroStrain sensors can instantly upload their data to SensorCloud via an ethernet-connected WSDA-2000. Once uploaded, your data is securely stored in the Cloud and can be accessed from anywhere, or downloaded for offline use.

Configurable alerts can be set to help notify you of real-time event in your data.

MathEngine allows you to perform analytics on your data, all in the Cloud. Pre-built functions are available for ease of use, while IPython Notebooks allow advanced users to write custom scripts to be run on their data once, or on a schedule.

mscl-logo

The MicroStrain Communication Library (MSCL) is our open-sourced API that simplifies writing code to interact with our sensors. MIP SDK is a lightweight C/C++ library for interacting with MicroStrain G and C-series products via baremetal and resource constrained microcontrollers.

Both APIs are readily available and fully-documented on GitHub, featuring valuable tools such as full documentation, example code, and a quick start guide.