This website uses cookies primarily for visitor analytics. Certain pages will ask you to fill in contact details to receive additional information. On these pages you have the option of having the site log your details for future visits. Indicating you want the site to remember your details will place a cookie on your device. To view our full cookie policy, please click here. You can also view it at any time by going to our Contact Us page.

Miniature high amplitude shock accelerometers

14 April 2008

The Aerospace & Defense division of PCB Piezotronics has announced the launch of Series 3991 & 3993, a family of MEMS-based, miniature high amplitude 20,000g shock accelerometers, which are among the industry’s smallest.

Series 3991 & 3993 MEMS-based miniature high amplitude shock accelerometers, available in both single axis and triaxial configurations, represent the state-of-the-art for miniature, high-amplitude, dc response acceleration sensors. They are capable of measuring long duration transient motion, as well as responding to and surviving extremely fast rise times, typical of a high-g shock event. Several configurations are offered to fulfill a variety of installation requirements, with a standard footprint that is a drop-in replacement for competitive models. Each style shares the same air-damped acceleration sensing element, which is micromachined from silicon using the latest advances in etching techniques. This tiny element measures just 2.5 x 1.7 x 0.9 mm (l x w x h) incorporating a seismic mass, protective over range stops, and a full-active, piezoresistive Wheatstone bridge, which provides minimal zero shift, very low power consumption and dc response capability.

Sensors also feature internal stops for large over-shock survivability, and high-strength, low-weight titanium housing, with integral very low-noise integral Kevlar cable. With 5% damping capability on Model 3991A1020KG, for lower-noise, better data fidelity (cleaner signal) and phase accuracy, quick response, and near-field pyroshock measurement capabilities, models within Series 3991/3993 are intended to fulfill demanding aerospace and defense requirements, as well as a wide assortment of product testing applications. Typical applications include fuze/safe and arm applications; penetrator tests; crash/impact testing; metal-to-metal impacts; drop testing; blast loading of structures; and consumer electronic products testing.

Contact Details and Archive...

Print this page | E-mail this page