Accelerometer

This week we're talking about 2.5D and 3D IC design, the robotaxi market, a rush of accelerometers, and sampling broadband satcom signals for navigation purposes...

Bosch has included ±28g accelerometers in its latest 3D inertial measurement unit, aimed at sports wearables. Called BHI385, it also includes a 32bit processor running embedded AI software “creating a complete programmable system”, claimed the company. It “accurately captures dynamic movements such as smashes, swings, and jumps [enabling] motion analysis for high-impact events across sports, fitness and gaming”. Features include ...

Murata has introduced an industrial-grade 3-axis accelerometer for structural health monitoring, machine control and construction. Includes temperature and drift over lifetime. Excluding mechanical shocks The company claims an offset error over life and temperature of ±4mg for x and y axes, and ±6mg for z, for the unit, dubbed SCA3400-D01. (‘g’ in this article is gravity rather than grams). Offset ...

There's a new Arduino board in town - the Nano 33 BLE Rev2, a new iteration of Arduino's popular board that features built-in magnetometer and inertial measurements, and Bluetooth LE.

Dmitry Vasilenko, of Arrow Electronics, provides some design hints to accelerate the mechanical model of an accelerometer. Micro-mechanical systems (MEMS) have become common. They are used for acceleration measurement in a multitude of designs, from in-vehicle systems to fitness trackers. Figure 1 shows the operation principle of an accelerometer. The basis of such a sensor is a movable proof mass ...

To help give robots a sense of touch, Bota Systems has created a six-axis sensor that can measure forces and torques on end-effectors. MiniOne Pro EtherCAT measures x, y and z force up to 50N with 35mN (21mN for z) noise-free resolution at 100Hz, and torque up to 1Nm with 0.4mNm (0.3mNm for z) resolution. To this, and internal inertial ...

STMicroelectronics has introduced automotive-qualified MEMS six-axis inertial-sensing module. ASM330LHB, as it will be known, contains a 3-axis accelerometer and 3-axis gyroscope, and is AEC-Q100 qualified. Used in pairs for fail-safe redundancy, with dedicated companion software, it can be used in functional-safety applications up to ASIL B. “Developed in accordance with the automotive functional-safety standard ISO 26262, the software library has ...

Bosch Sensortec announced four sensors all on the same day at CES in Las Vegas. BMP585 (right) is a toughened liquid-resistant barometer for altitude tracking in wearables. With a liquid-proof gel cover, it can be exposed to salt water and chlorinated swimming pool water – as well as dust, for example as part of a vacuum cleaner. “It includes all the ...

IAM-20685 is the smallest ASIL-B-compliant monolithic 6-axis MEMS inertial measurement unit in production, according to TDK, and it was developed in compliance with ISO 26262 for automated vehicle parking, for example. It “enables parking-assistance systems to determine the vehicle’s motion and vision systems to enable stabilisation techniques and improve image quality, and for positioning systems to enhance absolute position accuracy,” ...

Bosch is trying to push accelerometers and gyroscopes into lower-cost applications with an IMU (inertial measurement unit) called BMI323, which includes pre-developed function algorithms. “For example, BMI323 already includes Bosch Sensortec’s plug-and-play step counter software, so customers don’t need to spend time developing their own algorithms”, according to the company. “Other features include motion detection that can turn sub-systems on ...