Accelerometer for measuring high G forces

17 May 2017 Analogue, Mixed Signal, LSI

Analog Devices announced a next-generation accelerometer designed for long-period monitoring of the physical condition of high-value assets. With its extremely low-power capabilities, the ADXL372 high-G MEMS accelerometer targets Internet of Things (IoT) solutions where shock and impact on a unit during storage, transit or use would adversely affect its function, safety or reliability. Representative assets include materials inside shipping and storage containers, factory machinery, and battery powered products where there may be lengthy quiet periods punctuated by spontaneous, severe impacts.

The chip has an ‘instant on’ feature and can wake up immediately to acquire the entire waveform, which significantly reduces standby power drain. The resulting low current requirement of less than 2 μA while waiting for an impact typically yields years of operation from a single small battery when the sensor is used in a motion-activated system.

By using the ADXL372 as part of a remote edge-node device in an IoT application, transient events can be captured and categorised by a localised processor beforehand by being sent to the cloud or other data centre via a wireless link. Keeping the analysis localised saves power, time, and prevents unnecessary transfer of data for an event that is actually insignificant. The wide bandwidth of 3200 Hz and dynamic range of ±200 G make it an excellent fit for a diverse set of asset health-monitoring applications including monitoring of concussions for indication of traumatic brain injury in both athletes and military personnel.

For more information contact EBV Electrolink, +27 (0)21 402 1940, [email protected], www.ebv.com

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