Analog Devices has introduced an analog, 3-axis, high-g MEMS accelerometer. The ADXL377 measures acceleration of high-impact events resulting from shock and vibration, within the full-scale range of ±200 g with no signal saturation. This measurement range, combined with an analog output that continuously captures impact data, make the ADXL377 an ideal sensor for contact sports where the detection of concussive forces can reveal indictors of Traumatic Brain Injury. With a bandwidth of 1600 Hz, the ADXL377 is also ideal for use in industrial equipment where shock levels must be closely monitored. ADI’s new 3-axis accelerometer eliminates the need for alignment and the placement of orthogonal sensors, which significantly simplifies design. The board space requirement is reduced by up to five times that of typical solutions requiring multiple, single-axis accelerometers.
Among other applications, the ADXL377 is being designed into the IZOD 2012 INDYCAR Series driver impact safety system. INDYCAR worked in close collaboration with Analog Devices at the ADXL377 product definition phase. The resulting device allowed INDYCAR to upgrade the sensors located in their communications earpieces, which are used to measure driver impacts triggered by collisions during practice, time trials and during races, according to Jeff Horton, director of engineering for INDYCAR.