Miniature accelerometers target modal analysis and vibration measurements
The model 256 series is offered as either adhesive (256) or thread mounted (256HX) versions, with available sensitivities of 10 mV/g (±500 g range) and 100 mV/g (±50 g range), both with milli-g resolution. Its lightweight (3.5 gm) design effectively minimizes mass loading.
The accelerometers incorporate the use of Meggitt’s own proprietary piezoelectric crystal sensing element, operating in annular shear mode, which provides highly stable output sensitivity over time, excellent frequency response and low base strain, for thermal transient stability. In addition, the series uses a built-in low noise microelectronic amplifier which transmits its low-impedance voltage output through the same two-conductor cable that supplies required constant current power. A dielectric layer isolates case ground from the mounting surface. The hermetically sealed top connector and welded housing provide long-term reliability, even in harsh, corrosive or higher humidity conditions.
Supplied with the Endevco model 256 series is mounting wax and the model 3061A-120, a 10-foot cable assembly with temperature rating to +177°C (+350°F), featuring a male 10-32 miniature coax connector at one end and a male BNC at the other.
Optional accessories, sold separately, include the Endevco model 133 three-channel piezoelectric signal conditioner; the model 2775B signal conditioner; the model 2793 16-channel signal conditioner; the model 4416B low-noise battery powered signal conditioner; the model 4999 16-channel low-pass filter signal conditioner; the model 6634C vibration amplifier; and the model 4990a (Oasis) modular rack-mounted signal conditioner. All Endevco accelerometers are accompanied by a comprehensive five-year product warranty.
In addition, the series is available at specially discounted rates as part of the –R replacement sensors program, with quantities also available for immediate customer shipment as part of Meggitt’s Endevco Guaranteed In Stock program.
For information about the family of miniature piezoelectric accelerometers at
www.endevco.com/product/Product.aspx?product_id=108
www.endevco.com/product/Product.aspx?product_id=109
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