TDK’s new rugged and accurate industrial motion sensors provide fault tolerance and software synergy for high performance navigation applications

  • 10 year lifetime commitment
  • 6-axis industrial IMUs provide 1.9 degrees/hr gyroscope bias instability, fault tolerance and microsecond accurate timestamping features.
  • Ultra-low noise sensors provide accurate readings for high-end navigation systems
  • Hardware and software synergy enables industry-leading redundancy and early warning capabilities to prevent operational disruptions.
  • Factory calibration over the full operating temperature range for offset, sensitivity (scale factor), G-sensitivity and cross-axis sensitivity.

November 15, 2022

TDK Corporation (TSE:6762) expands the SmartIndustrial™ line of rugged and accurate motion sensors and announces the availability of InvenSense IIM-46234 and IIM-46230 new high-performance fault-tolerant inertial measurement units (IMU) aimed at navigation applications that require accurate, stable, and best-in-class in-class bias instability at an affordable price. IIM-46234 and IIM-46230 are modules containing multiple 6-axis sensors, each of which can measure three dimensions of linear acceleration and three dimensions of rotational speed. The calibration of these devices over the full temperature range (-40ºC to 85ºC) guarantees the best performance which is not typical for standard IMUs, which often show degrading performance as the temperature rises or falls. It also provides stable measurements at all temperatures to minimize position and angle errors for navigation applications. The modules also contain a microcontroller that provides multiple options for communication and sensor fusion.

Since these products provide accurate measurements even in harsh environments with high vibrations and large temperature fluctuations, this product family is well suited for a variety of navigation applications, including high performance real-time kinematic positioning (RTK) and GNSS/INS units, precision farming, construction equipment and industrial robots. An example application is an industrial autonomous vehicle or drone that requires best-in-class dead reckoning performance in the event of GPS signal loss.

“These types of high-end IMU modules were prohibitively expensive in the past. We now offer a solution that combines performance and affordability for customers developing navigation systems for drones, industrial autonomous vehicles and navigation systems,” said Camilo Delgado, Director of Product Marketing & Industrial Motion Sensor Business.

This new product family also integrates TDK’s unique SensorFT™ fault tolerance feature, which combines the multi-IMU hardware design with TDK’s proprietary fault detection and recovery software to provide built-in redundancy and early warning capabilities. A system containing IIM-4623X sensors can provide customers with advanced alerts, enabling preventive maintenance to avoid operational disruptions.

Products IIM-46234 and IIM-46230 are available from most global distribution partners. Product demonstrations are available at our main booth #B3.560 at Electronica in Munich, Germany.

For more information and assurances, go to or send inquiries to

Word list

    • AV: Autonomous Vehicles
    • IMU: unit of inertia measurement
    • GPS: Global Positioning System
    • GNSS: Global Navigation Satellite System

    Main applications

    • Construction equipment
    • Precision farming
    • Navigation
    • Platform stabilization
    • Robotics
    • Geo-referencing, maps and surveying

    Main features and benefits

    • Low bias instability and noise
    • Low offset and sensitivity variation over temperature
    • Factory calibration over temperature range for Bias, Sensitivity, Misalignment, G Sensitivity
    • Robustness to shock and vibration
    • Triaxial, delta angle and delta velocity output
    • TDK’s proprietary SensorFT feature that provides built-in redundancy and fault tolerance against individual sensor failures

    About TDK Corporation

    TDK Corporation is a global leader in electronic solutions for the smart society, based in Tokyo, Japan. Built on a foundation of mastery in materials science, TDK welcomes societal transformation by resolutely staying at the forefront of technological evolution and consciously “Attracting Tomorrow”. It was founded in 1935 to market ferrite, an important material in electronic and magnetic products. TDK’s extensive innovation-oriented portfolio includes passive components such as ceramic, aluminum electrolytic and film capacitors, as well as magnetic, high-frequency and piezo and security devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic and MEMS sensors. In addition, TDK supplies power supplies and energy devices, magnetic heads and more. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on demanding markets in the automotive industry, industrial and consumer electronics and information and communication technology. The company has a network of design, production and sales offices in Asia, Europe and the Americas. In fiscal year 2022, TDK posted total revenues of $15.6 billion and employed approximately 117,000 people worldwide.

    About InvenSense

    InvenSense, a TDK Group company, is a leading global provider of Sensing Solutions. InvenSense’s vision for Sensing Everything® addresses consumer electronics and industrial areas with integrated motion, sound, pressure and ultrasound solutions. InvenSense solutions combine micro-electrical mechanical systems (MEMS) sensors, such as accelerometers, gyroscopes, compasses, microphones, barometric pressure sensors, and ultrasonic time-of-flight sensors with proprietary algorithms and firmware that intelligently monitor the output of sensors, maximum performance and accuracy. InvenSense’s motion tracking, ultrasonic, audio, fingerprint, location platforms and services can be found in Mobile, Wearables, Smart Home, Industrial, Automotive, IoT, Robotics and many more types of products. InvenSense became part of the MEMS Sensors Business Group within the Sensor Systems Business Company of TDK Corporation in 2017. In April 2022, Chirp Microsystems formally merged with InvenSense. InvenSense is headquartered in San Jose, California and has offices around the world.

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