Three axis MEMS accelerometer operates within full scale range of ±200g
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A new three axis MEMS accelerometer designed to measure the acceleration of high impact events resulting from shock and vibration has been announced by Analog Devices.
The ADXL377 is designed to operate within the full scale range of ±200g with no signal saturation. It features an analogue output to continuously capture impact data and is said to be suitable for use as a sensor in contact sports, as well as in industrial equipment where shock levels have to be closely monitored.
The accelerometer has a bandwidth of 1600Hz and according to ADI eliminates the need for alignment and the placement of orthogonal sensors. Board space requirement is said to be reduced by up to 5x that of typical solutions requiring multiple, single axis accelerometers.
"The ADXL377 accelerometer is going to be a great addition to our ear sensor programme," said ADI's Mark Martin. "Not only will the smaller size greatly reduce the manufacturing time needed to place the components into the custom ear molds that we make for each of the drivers, it will allow us to place the accelerometer closer to the ear canal opening which should help with the coupling of the accelerometer to the driver's head for a more accurate reading. In the past we had to use three separate ICs in each ear to obtain the same data."
