Meggitt Sensing Systems introduces
world's smallest Endevco® ISOTRON®
piezoelectric accelerometer, weighing just 0.2 gram

Meggitt Sensing Systems, a Meggitt group division, has introduced the Endevco® model 25A, the world's smallest ISOTRON® (IEPE-type) piezoelectric accelerometer, designed to support high-reliability vibration measurement requirements on very small structures and objects. With a total weight of just 0.2 gram, its lightweight design effectively reduces unwanted mass loading effects.

The Endevco® model 25A, the world's smallest ISOTRON® (IEPE-type) piezoelectric accelerometer.

Featuring a durable shear mode construction, the Endevco® model 25A incorporates integral electronics which convert high-impedance input into a low-impedance voltage output through the same cable that supplies the required 4 mA constant current power. Signal ground is isolated from the unit's mounting surface by a hard anodized surface. The unit comes with two pre-installed, easily field-reparable fine gage (34 AWG) wire output leads, allowing for immediate field use. If required, a new assembly lead may also be reinstalled at the factory. A heavier gage (28 AWG) cable is also provided for extension purposes. In addition, an optional triaxial mounting block (model 2950M16) is available to facilitate three-axis vibration measurement requirements. Units are adhesive mounted with a special field removal tool (model 31275) supplied for convenience.      

With its small size and exceptional performance attributes, the Endevco® model 25A is well-suited for measuring overall vibration levels of scaled models and smaller electronic components within aerospace, automotive, electronic products, and in-laboratory testing applications, as well as biomedical research. Recommended optional accessories, sold separately, include the model 133 three-channel piezoelectric signal conditioner; the model 4416B low-noise, compact signal conditioner; the model 2775B PE, Isotron® and RCC signal conditioner; the model 6634C vibration amplifier; the model 4999 multi-channel signal conditioner; or the Oasis 2000 (4990A-X with cards 428 and/or 433) computer controlled system. All Endevco® accelerometers are accompanied by a comprehensive five-year product warranty, with designated quantities of the model 25A available for immediate customer shipment, as part of Meggitt's Endevco® Guaranteed InStock™ program.

For further information, view website: www.meggittsensingsystems.com 

Meggitt Sensing Systems appoints Terry Weed as
Vice President of Measurement Sales and Marketing

Meggitt Sensing Systems, has appointed  Mr. Terry Weed, a 30-year industry expert, as its new Vice President of Measurement Sales and Marketing.

In his new role, Mr. Weed will be responsible for all global sales and marketing, product management, customer service and applications engineering for the San Juan Capistrano, California-based Meggitt Sensing Systems Measurement group, ensuring the successful achievement of new market growth objectives within aerospace, automotive, industrial, medical, R&D and test and measurement sectors. In addition, he will be working closely with both engineering and operations on custom manufacturing offerings, continuous quality improvement and customer support initiatives and the successful integration of Endevco®, Sensorex, Vibro-Meter and Wilcoxon Research sensing technologies under one umbrella.

Mr. Weed's extensive experience has been gained through a progressive series of industry-specific leadership positions, most recently as the Director of Sales at Cherry Aerospace, and previously, as the Director of Sales and Marketing at Data Physics Corporation. He holds a Master of Business Administration degree from California State University at Fullerton, as well as a Bachelor of Science degree from California Polytechnic State University in Pomona.

Meggitt Sensing Systems, a Meggitt group division, 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, all manufactured at its San Juan Capistrano-based development site, ensure accuracy and reliability within critical applications.

For further information about Meggitt Sensing Systems and its available product offerings, view website: www.meggittsensingsystems.com  Refer to page 182

Meggitt Sensing Systems' portable, low-noise battery powered
Endevco® signal conditioner for accelerometer and acoustic test setups

Meggitt Sensing Systems's Endevco® model 4416B, is a portable, compact, low-noise battery operated signal conditioner and power supply, designed to support ISOTRON® (IEPE-type) accelerometers; prepolarized condenser microphones and preamplifiers; pre-calibrated microphone and preamplifier combination sets; and low-cost array measurement microphones, by supplying power to the transducer from a constant current (4.7 mA) source, with selectable gain of 1 or 10.

The Endevco® model 4416B signal conditioner is powered by rechargeable NiCad batteries (supplied with charger), which allow for eight hours of continuous operation.  The unit is also able to remain fully operational during the recharging cycle. An LED status indicator notifies the user of a short, open or normal operating condition, with the necessary internal automatic power shutdown circuitry to protect rechargeable batteries from deep discharge damage. The added flexibility of this signal conditioning unit allows for ease of customer use and seamless integration of the model 4416B across multiple test setups, ultimately saving time and costs within a variety of aerospace, automotive, industrial and general in-laboratory testing applications.

The Endevco® model 4416B battery operated signal conditioner and power supply.

All Endevco® signal conditioning electronics are backed by a five-year comprehensive product warranty, with select models available at specially discounted rates under Meggitt's Endevco® Incentives program.

For detailed technical specifications, drawings or additional information, view website: www.meggittsensingsystems.com  Refer to page 182

Meggitt Sensing Systems' Endevco® ½" low-noise ISOTRON® microphone preamplifier for precision acoustic test requirements

Meggitt Sensing Systems, Endevco® model EM26CF, is a general purpose ½" ISOTRON® (IEPE) microphone preamplifier, designed for direct compatibility with prepolarized condenser microphones in support of a variety of precision acoustic test requirements.

The model EM26CF is designed for use with all Endevco® prepolarized microphones and incorporates use of an Isotron® power supply to offer a low inherent noise level, large dynamic range and a wide frequency response from 2.5 Hz to 100 kHz. Its small and robust ceramic thick-film substrate construction offers high-input impedance and is shielded by a guard ring to minimize the influence of stray capacitance and microphonic interference.  Preamplifier components are encased in all-stainless steel housing with an integral BNC output connector for maximum strength and durability.

In addition, the Endevco® model EM26CF offers two user-selectable flush-mounted switch settings for optimal gain and filtering.  Gain selections include 0 dB for normal conditions and +20 dB for enhancing weak microphone signals.  Filter settings allow the user to select an A-weighting filter, as typically required for standard measurements; a linear setting, to allow the microphone signal to pass unfiltered; or a high-pass filter, to eliminate unwanted low frequencies.  These settings offer additional flexibility, facilitating their use across a variety of applications, including vehicle pass-by noise testing, environmental noise analysis and building acoustics.

Recommended accessories for the Endevco® model EM26CF include the model EM42AA handheld pistonphone calibrator, which facilitates field checks of complete acoustic measurement systems, as well as the in-house calibration of measurement microphones; the model 4416B ISOTRON® power supply (2-20 mA); and the model 133 three-channel signal conditioner. All Endevco® acoustic sensors and instrumentation are also backed by a five-year comprehensive product warranty.

For detailed technical specifications, drawings or additional information, view website: www.meggittsensingsystems.com  Refer to page 159