Meggitt offers surface-mountable piezoresistive accelerometers

The Endevco 71M series of piezoresistive accelerometers is said to offer high-resonant frequency, 200 mV full-scale output and a shock measurement range from 2,000 to 60,000 g.

Nov. 4, 2011—Meggitt Sensing Systems, San Juan Capistrano, Calif., this week introduced the Endevco® model 71M series of rugged, undamped subminiature, surface-mountable piezoresistive accelerometers, designed to support a variety of high-g shock measurement requirements, a company news release reported Nov. 3.

"With available g ranges of 2K, 6K, 20K and 60K," according to the company, "design of the Endevco® model 71M series features a patented, monolithic, four-active arm bridge circuit design incorporating the use of Meggitt’s own proprietary sensing element—machined in-house from a single piece of silicon at its ISO9001-certified MEMS facility in Sunnyvale, Calif.

Weighing just 0.06 g, the device includes inertial mass and strain gages arranged in an active four-arm Wheatstone bridge circuit with a novel on-chip zero-balance network.