December 20, 2011, San Juan Capistrano, California, USA – Meggitt Sensing Systems, a Meggitt group division, has introduced the Endevco® model 7274 series, a family of rugged, undamped, high-g triaxial piezoresistive shock accelerometers, designed for high-acceleration shock measurements across three mutually perpendicular axes.
The Endevco® model 7274 series is the triaxial version of the company’s popular single-axis 7270A series, sharing the same footprint, bolt pattern and highly efficient sensing system. This product family offers 20 years of field-proven pedigree across thousands of installations. Available in four unique ranges of 2000 g; 6000 g; 20,000 g; and 60,000 g, the robust design of the model 7274 series incorporates three sensors mounted in a triaxial arrangement within a single housing. Selectable ranges per axis are available by special request. For each axis, the MEMS sensor is sculptured from a single chip of silicon, which includes the inertial mass and strain gages arranged in a patented four-active-arm Wheatstone bridge circuit configuration (U.S. patents 4,498,229; 4,605,919; and 4,689,600). This unique construction allows for a sensor with high resonance frequency, low output impedance, ruggedness 3x to over-range, and zero damping for minimal phase shift over its useful frequency range. Because units are undamped, they can also accurately respond to fast rise times and short duration shock motion. All sensing elements are machined in-house at Meggitt’s own ISO9001 certified MEMS facility in Sunnyvale, California, USA.
With a frequency response extending down to dc (steady state), the 7274 series is also ideal for measuring long duration transient shocks while integrating critical acceleration data for velocity and displacement. In addition, sensors feature a robust eight-conductor cable that is expressly designed to repeatedly withstand high-g shock acceleration inputs. Units also feature simple screw mount installation with factory controlled and tested cross-axis performance, making them more cost-effective and easier to install than three similar-type single axis accelerometers with a mounting block.
Recommended accessories for the Endevco® model 7274 series include the model 126 three-channel DC bridge amplifier; the model 136 three-channel signal conditioner; and the model 436 DC differential voltage amplifier. Please note that global sale of this product is subject to International Traffic in Arms Regulations (ITAR), and as such, a license is required for all non-US shipments, with the product also potentially subject to other restrictions on its sale and use. Please consult the factory for details. For more information, visit www.meggittsensingsystems.com.
About Meggitt Sensing Systems
Meggitt Sensing Systems, a Meggitt group division (www.meggitt.com), is a leading supplier of high-performance sensing and monitoring systems for physical parameter measurements in extreme environments. It has operated since 1927 through its antecedents—ECET, Endevco, Ferroperm Piezoceramics, Lodge Ignition, Sensorex, Vibro-Meter and Wilcoxon Research—whose portfolios form the basis of product lines offered by today’s Meggitt Sensing Systems. Meggitt’s Endevco® range of piezoelectric, piezoresistive, Isotron® and variable capacitance accelerometers, piezoresistive pressure transducers, acoustic sensors, electronic instruments and calibration systems ensure critical accuracy and reliability within aerospace, automotive, defense, industrial, medical, power generation, R&D, space and test and measurement applications. Endevco® and Isotron® are registered trademarks of the Meggitt group. All other trademarks are property of their respective owners.
