GPS World

Tag: MEMS inertial sensor

  • Micro-Magic offers high-precision MEMS IMU module

    Micro-Magic offers high-precision MEMS IMU module

    Micro-Magic has released the U4930 series, a reliable and cost-effective six-axis MEMS inertial measurement module that can be widely used in navigation, control and measurement fields for vehicles, ships and drones.

    Typical applications include vehicle/ship attitude measurement, UAV attitude reference and trajectory control, mobile mapping, track inspection, underwater high-precision navigation, and Satcom-on-the-Move.

    The U4930 series integrates high-performance MEMS gyroscopes and MEMS accelerometers within an independent structure. The three-axis MEMS gyroscopes sense the angular motion of the carrier, and the three-axis MEMS accelerometers sense the linear acceleration of the carrier.

    The system internally performs compensation for zero bias, scale factor, non-orthogonal error, and acceleration-related terms across all temperature parameters, maintaining high measurement accuracy over a long period of time.

    The module supports custom communication protocols and provides synchronization for GPS/GNSS time data and pulse per second (PPS) signals.

    The U4930A series inertial measurement module can be configured with various hardware and software to meet user needs.

  • STMicroelectronics introduces automotive inertial module

    STMicroelectronics introduces automotive inertial module

     

    Credit: STMicroelectronics
    Credit: STMicroelectronics

    STMicroelectronics has released the ASM330LHB automotive-qualified MEMS inertial-sensing module, which provides accurate measurements for a wide variety of vehicle functions. With the dedicated software provided, ASM330LHB also addresses functional-safety applications up to ASIL B1.

    ASM330LHB contains a 3-axis digital accelerometer and 3-axis digital gyroscope that provide a six-channel synchronized output. The module’s high-accuracy inertial measurements are used to improve the precise positioning of a vehicle.

    The accelerometer and gyroscope maintain high stability over time and temperature and have very low noise for an overall bias instability of 3°/hour. Specified over the extended temperature range, -40°C to 105°C, the ASM330LHB has multiple operating modes that let designers optimize the data-update rate and power consumption.

    ASM330LHB can support advanced driver assistance systems or vehicle-to-everything communication, as well as help stabilize sensing systems such as radar, lidar and cameras, and assist semi-automated driving applications up to L2+. Additionally, ASM330LHB can be used to enable a variety of functionalities in the body of a vehicle.

    ASM330LHB was developed with the automotive functional-safety standard ISO 26262 — the ASIL B compatible software library has been certified independently by TÜV SÜD. By implementing dedicated safety mechanisms, including data integrity and accuracy, the library ensures compliance with ASIL B automotive systems.

    With the companion software engine, the ASM330LHB supports the growing adoption of automotive systems that require safety integrity up to level B. The combination of two ASM330LHB sensor modules for fail-safe redundancy delivers resilient contextual data for driver-assistance applications such as lane centering, emergency braking, cruise assistance and semi-automated driving.

    ASM330LHB is AEC-Q100 qualified and in production now in a 2.5 mm x 3.0 mm 14-lead VFLGA package.

  • Tactical-grade MEMS accelerometers launched for space

    Tactical-grade MEMS accelerometers launched for space

    Photo: Silicon Designs
    Photo: Silicon Designs

    New radiation-tested, tactical-grade MEMS inertial accelerometers designed for spacecraft electronics testing

    Silicon Designs Inc. has launched the Model 1527 series, a family of miniature, radiation-tested, tactical-grade micro-electromechanical (MEMS) inertial accelerometers.

    Offered in three full-scale acceleration ranges — ±10 g, ±25 g and ±50 g — the series is designed to support a variety of critical space electronics testing requirements, including those of spacecraft, satellites and CubeSats.

    In addition, their small bias and scale-factor temperature coefficients, excellent in-run bias stability, and zero cross-coupling make the Model 1527 series particularly well-suited for spacecraft electronics testing applications requiring low power consumption (+5 VDC, 6.5 mA), low noise, long-term measurement stability in –55° C to +125° C environments, and performance reliability under intermittent radiation exposures.

    Radiation test report data, as generated during internal qualification testing, is available on request.

    The rugged design of the Model 1527 series combines a tactical-grade MEMS inertial sense element with a custom integrated circuit, internal temperature sensor, onboard sense amplifier and ±4V differential analog output stage. The MEMS inertial sense element and internal components are housed within a lightweight, hermetically sealed, nitrogen-damped, miniature, RoHS compliant, J-lead LCC-20 surface mount ceramic package (U.S. Export Classification ECCN 7A994), weighing 0.68 grams.

    Its compact and lightweight footprint allows for ease of accelerometer installation within space-constrained environments, as well as minimization of mass loading effects. Each Model 1527 Series accelerometer is marked with a serial number for traceability on both top and bottom surfaces.

    All Silicon Designs’ Model 1527 Series tactical-grade MEMS inertial accelerometers are designed, manufactured, performance-verified and calibrated in-house at the company’s global corporate headquarters and R&D center outside of Seattle, Washington. Product performance documentation is supplied at the time of shipment, including residuals, thermal sensor model, acceleration model, bias, scale factor, linearity, operating current and frequency response data.