Power Electronics

Miniature PiezoBeam TEDS Accelerometers for Multi-Channel Modal Testing

Kistler North America has introduced a new family of single axis and triaxial lightweight, miniature PiezoBeam IEPE accelerometers with optional TEDS, designed for the multi-channel modal and structural analysis of small or thin-walled structures, components and subsystems, as well as full vehicle testing within automotive, aerospace, commercial aviation and general laboratory testing environments.

The Type 8640A is the company's dimensionally smallest, lowest mass PiezoBeam IEPE accelerometer model, weighing just 3.5 grams. Offered in ranges of ±5 g, ±10 g and ±50 g with sensitivities from 1000 mV/g to 100 mV/g, the sensor's ceramic cantilever beam sensing element is thermally compensated using patented methods that allow it to emit an electrical charge proportional to vibration (World patent number W0/2007/062532; European Patent: 2006790940; U.S. patent number 12,088,325).

The sensing element is enclosed within a hermetically sealed, welded titanium housing with low base strain sensitivity. An internal low noise charge amplifier provides a low impedance output with outstanding amplitude and phase response over a wide frequency range and exceptional measurement stability. The 8640A also features an integral 10-32 connector, as well as several mounting accessories, for easy installation into space constrained environments.

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