High-G MEMS help detect concussions
May 25, 2012 // R. Colin Johnson
Sports-related concussions have skyrocketed in the U.S. with over 3.8 million reported each year. New MEMS sensors small enough to be mounted inside an athlete's helmet, for example, could perform early detection of symptoms, giving doctors time to administer preventative therapies.
"Starting about a year and a half ago we started getting requests for MEMS accelerometers to detect concussions," said Wayne Meyer, MEMS marketing and applications manager at Analog Devices. "Concussive forces start at around 60 Gs and go up to about 120 Gs, but most applications also want to provide some headroom so the sensor never saturates,” Meyer added. “So we built ours to sense plus or minus 200 Gs."
Using high-G sensors for early detection of concussions could drastically reduce injuries, according to the American Association of Neurological Surgeons, since most injuries occur because treatment is delayed. More than 75 percent of concussions go undiagnosed, eventually contributing to over 30 percent of head trauma deaths in the U.S., according to the Centers for Disease Control and Prevention. Early detection also could cut medical bills and lost productivity, which is estimated to exceed $76 billion annually.
Analog Devices, which already produces single-axis, high-G accelerometers used to detect concussions in IndyCar drivers, recently redesigned their high-G sensor into a single chip, allowing it to fit inside football and other sports helmets. The high-G MEMS accelerometer measures 3-by-3-by-1.45 mm, making it small enough to fit inside a helmet-mounted earpiece to measure head trauma. The ADXL377 draws only about 300 microAmps, making it suitable of battery operation.
"There are many sports where high-G accelerometers could be used to detect concussions,” said Meyer. “Football and skateboarding come to mind immediately, but even cycling, water sports and snow skiing are all candidates.” Industrial and aerospace applications include high-G MEMS sensors used along with impact tools and other machinery, he said
Recent high-profile NFL incidents involving repeated head trauma have upped the ante for concussion detection solutions. For instance, after former NFL linebacker Junior Seau's recent suicide has been linked to possible head trauma over the course of a long career. Other former NFL players have joined in a lawsuit against the lead claiming it ignored the health and safety of players.
80V Wide Range I2C Power Monitor Simplifies Challenging System
December 18, 2013
Accurate monitoring of power is an essential part of a reliable and energy efficient (green) system design.
Bosch highlights MEMS sensors at CES
Intematix patents red nitride phosphor for LED lighting
Amazing race toward autonomous car design
Direct-type LED TV penetration rate exceeds 60 percent in 2014
Acoustic test systems identify faults in vehicles
December 18, 2013
With two new products, automotive test solution provider Göpel electronic GmbH addresses the demand of acoustic analysis ...
Micron collaborates with Broadcom to improve DRAM timing and speed of operation
Project aims to shrink cooling systems
Gartner puts a number on IoT in 2020
- UltraCMOS® Semiconductor Technology Platforms: A Rapid Advancement of Process & Manufacturing
- Managing Electrical Complexity with a Platform Level Approach and Systems Engineering
- 3mm × 3mm QFN IC Directly Monitors 0V to 80V Supplies
- Adaptive Cell Converter Topology Enables Constant Efficiency in PFC Applications
Interview"Future automotive applications need incredibly more computing power"
These days, the Autosar (Automotive Open System Architecture) development partnership celebrates its tenth anniversary. Launched with the goal to reduce the complexity of the heterogeneous software landscape ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
Internet of Things (IoT) manufacturer Ciseco has launched the Raspberry Pi ‘Wireless Inventors Kit’ (RasWIK), featuring 88 pieces to provide everything a Pi owner needs to follow a series of step-by-step projects or to create their own wireless devices, without the need for configuration or even writing code.
RasWIK has been designed to be highly accessible, demystifying the dark art of wireless and enabling anyone with basic computing skills to begin building wireless devices with a Raspberry Pi. You can create anything from a simple traffic light, to a battery monitor, or even a temperature gauge that sends data to the Xively IoT cloud so billions can access the data.This month, Ciseco is giving away twelve Raspberry Pi Wireless Inventors kits, worth £49.99 each for EETimes Europe's readers to win.
And the winners are...
In our previous reader offer, Farsens was giving away five kits for EEtimes Europe readers to evaluate its FenixVortex, Kineo and X1 wireless, battery free sensor tags.
Lucky winners include Mr A. Neil from the UK, Mr. E. Delvaux from Belgium, Mr Lengal from the Czech Republic, Mr H. Bijlsma from the Netherlands, and Mr G. Pfaff from Germany. All should be receiving their packages soon. Lets wish them some interesting findings with their projects.
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.