Weartech-Sensors Archives - Page 10 of 16 - SmartCitiesElectronics.com

Force rebalance MEMS accelerometer reduces weight in navigation systems

Fri, Oct 15, 2021

Designed for challenging environments, the Tronics AXO315 force-rebalance digital MEMS accelerometer withstands severe temperature and vibration conditions experience in industrial, land, rail, navy, oil and gas and construction applications, says TDK.

The one-axis, closed looped digital MEMS sensor has a ±14g range. The in-plane linear accelerometer achieves a one-year composite repeatability of 1mg, and a 600ppm composite scale factor repeatability over temperatures ranging from -55 to +105 degrees C and under 4g vibrations.

In addition to vibration rejection, it exhibits superior Allan variance characteristics, says TDK, with a basis instability of 4.0 microg, a velocity random walk of 0.006m per second per sq root h and a very low noise of 15 microg/ sq root Hz, for high resolution and low error.

Its performance is equivalent to the incumbent analogue quartz accelerometers and mechanical inclinometers, but at a fraction of their size, weight, and price, says TDK, resulting in a reduction in size, weight and cost of materials in servo inclinometers and dynamic inclinometers in industrial motion control units, as well as inertial measurement units (IMUs) and inertial navigation systems (INS) for GNSS-aided positioning, navigation of manned and unmanned ground vehicles and trains.

The AXO315 features a force-rebalance architecture, a 24-bit digital SPI in an SMD package. It is also claimed to outperform all commercially available MEMS sensors components and offers easier integration compared to analogue sensors.

It is supplied in lightweight 1.4g hermetic SMD J-lead ceramic package (12 x 12 x 5.0mm), enabling low-cost assembly and reliability on PCB, even in fast-changing temperature conditions.

The sensor can be evaluated with an Arduino-based evaluation kit that is specifically designed to provide developers with improved testing functionalities such as output reading and recording, recalibration and digital self-tests.

Both sensor and evaluation kit are available from Digi-Key, Mouser and Farnell and its affiliates Newark and Element 14.

https://www.tronics.tdk.com

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TDK offers miniaturised, highly sensitive MEMS pressure sensor element

Fri, Oct 08, 2021

Designed to measure a range of 0 to 100 mbar, TDK Corporation’s C35 type pressure sensor element combines high sensitivity with low dimensions of 2.05 x 2.05 x 1.2 mm, enabling compact pressure sensor designs.

The pressure sensor element with ordering code B58601E35 works according to the piezoresistive principle via a Wheatstone bridge and is certified for an operating voltage of up to 10 V.

Offering a high sensitivity of 110 mV/V/bar, C35 is suitable for applications with high demands of sensitivity, accuracy and long-term stability of 0.1% FSON.

Furthermore, C35 is designed for a wide temperature range from -40 degrees C to +150 degrees C and is suitable for pressure measurements of non-aggressive gases and liquids. The main uses are in applications that require high reliability and extremely precise pressure measurement, such as medical engineering and the industrial and automotive sectors.

TDK Corporation is a leader in electronic solutions for the smart society based in Tokyo, Japan. It was established in 1935 to market ferrite, a key material in electronic and magnetic products.

The company’s portfolio features passive components such as ceramic, aluminum electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The range of products also includes sensors and sensor systems such as temperature and pressure, magnetic and MEMS sensors.

In addition, TDK provides power supplies and energy devices and magnetic heads. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda.

TDK focuses on demanding markets in automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America.

In fiscal 2021, TDK posted total sales of $13.3 billion and employed about 129,000 people worldwide.

For more information go to

https://www.tdk-electronics.tdk.com/en/pressure_sensor_elements

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Smallest Arduino Pro board brings sensing to the edge

Mon, Sep 27, 2021

Claimed to be the smallest Arduino board to date, Nicla Sense ME has been created by Arduino Pro and Bosch Sensortec. It makes sensing and intelligence at the edge accessible to all, says Bosch Sensortec.

The Sense ME is the first product in the Nicla family. It combines low-power sensor nodes with the ability to handle AI and machine learning (ML) on the edge. Dimensions are just 22.86 x 22.86mm.

The Nicla Sense ME has a nine degrees of freedom (DoF) smart motion sensor and a 4DoF environmental sensor with AI capabilities. It uses Bosch Sensortec’s BHI260AP artificial intelligence (AI) sensor system with integrated motion sensor, BMM150 magnetometer, BMP390 pressure sensor, and the BME688 four-in-one gas sensor with AI and integrated high linearity and high accuracy pressure, humidity and temperature sensors.

The board can sense and process different types of data on the edge and reduces latency and power consumption for more privacy without minimal bandwidth, says Bosch. Arduino Pro’s Adriano Chinello describes it as “a tiny board with a really great mix of sensors combined with high computational power, opening up a whole new range of applications leveraging on sensor fusion. Smart building automation, mobile and wearable devices, industrial and professional equipment are key targets”.

Power-saving operation and clear programming structure make the small board suitable for research projects, rapid prototyping and development. It is included in the starter kit provided to all teams participating in the Bosch Sensortec’s 2021 IoT Innovation Challenge, an online competition for students.

“Bosch Sensortec’s self-learning AI smart motion sensor, the environmental sensor with AI capabilities and all the other sensors allow a broad range of applications to address the different segments of the IoT market. This way developing intelligent, low-power and scalable edge sensing applications is easier than ever before” says Dr. Stefan Finkbeiner, CEO of Bosch Sensortec.

The Nicla Sense ME can be powered by a battery and used as a complete standalone board, or attached to an Arduino board to expand its capabilities. It is equipped with Arduino’s fast deployment and easy configuration and is also future-proof, says Bosch, as it allows for additional sensors. It is compatible with upcoming Nicla products, as well as the Arduino Pro MKR and Portenta families.

https://www.bosch-sensortec.com

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Sensor evaluation board accelerates IoT development, says Bosch Sensortec

Tue, Sep 07, 2021

R&D effort can be simplified to assist rapid prototyping and reduce time to market for the segmented IoT market, using the Application Board 3.0, says Bosch Sensortec. It offers Bluetooth connectivity and a small form factor for IoT applications and supports the full range of Bosch Sensortec sensors

The Application Board 3.0 simplifies the evaluation and prototyping of sensors for a wide range of applications, particularly in Industry 4.0, IoT, smart home systems, and wrist- and head-mounted wearables, explained Bosch-Sensortec.

Any Bosch Sensortec sensor mounted on a ‘shuttle board’ is simply plugged into the socket on the Application Board. All shuttle boards have an identical footprint, and Bosch Sensortec’s software automatically detects which sensor is plugged in at any given moment to launch the appropriate software. This enables the straightforward evaluation of a wide range of sensors and solutions, said Bosch Sensortec. Prototypes can be built to quickly test different use case configurations, added the company.

The board measures just 47.0 x 37.0 x 7.0mm³, which is practical for evaluating sensors used in portable applications, observed Bosch Sensortec. The board can be powered using a 3.7V Li-ion battery or a standard 5V USB power supply.

“The Application Board 3.0 makes it quick and easy for developers to build their projects with any of our sensors on a single platform, meaning that they can now focus on creating unique use cases and differentiating their products,” says Dr. Stefan Finkbeiner, CEO at Bosch Sensortec. “Our customers also benefit from efficient support through regional field application engineers and Bosch offices,” he continued.

The integrated development environment (IDE) software provided with the board includes a simplified graphical user interface (GUI) to evaluate and tune sensor parameters, as well as to visualise and record sensor data. The software also saves time in troubleshooting sensor-related issues, claims Bosch Sensortec.

Application Board 3.0 is designed around the u-blox NINA-B302 Bluetooth Low Energy (BLE) module and is based on the nRF52840 chipset from Nordic Semiconductor, which includes an Arm Cortex-M4F CPU. It is certified and compliant with multiple directives for different international regions: CE, RoHS, China RoHS, FCC, IC, VCCI, SRRC and NCC.

The board is supplied with 256kbyte RAM, 1Mbyte of internal flash and 2Gbyte of external flash memory for data logging. It provides full-speed micro-USB 2.0 connectivity and BLE to connect to a host, such as a PC, for transferring the logged sensor data from the board.

The Application Board 3.0 is available now.

http://www.bosch-sensortec.com

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Force rebalance MEMS accelerometer reduces weight in navigation systems

TDK offers miniaturised, highly sensitive MEMS pressure sensor element

Smallest Arduino Pro board brings sensing to the edge

Sensor evaluation board accelerates IoT development, says Bosch Sensortec

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