Bruel & Kjaer / Endevco - PRODUCT NEWS

New Endevco Valuline Accelerometer Family. Noise and vibration specialist, Brüel & Kjaer has launched Endevco's new Valuline accelerometer family with the variable capacitance (VC) model 7596. Economical and rugged, the new model 7596 offers a low cost solution for low-level, low frequency applications. The Valuline has many of the same features as Endevco's rugged model 7290A Microtron accelerometer making the new 7596 ideal for applications where the 7290A's tight thermal characteristics are not required. Applications include laboratory measurements, ground transportation studies and measurements where the accelerometer will be subjected to high shock levels up to 10,000 g's. The model 7596 is also suitable for modal studies on large structures. Four models are available offering ±2, ±10, ±30 and ±100g measurement ranges. Specifications include sensitivity of 1000 ±20mV/g, 200 ±10mV/g, 66 ±4mV/g and 20 ±1mV/g respectively, frequency response from 0 to 15Hz, 0 to 500Hz, 0 to 800Hz and 0 to 2000Hz respectively and mounted resonance frequency of 1300, 3000, 5500 and 5500Hz respectively. Operating temperature range is -55 to +121°C for all models. Gas damping and internal over range stops enable the anisotropically etched silicon microsensors to withstand very high shocks and acceleration loads. The use of gas damping in the sensor results in very small induced changes of frequency response while the patented sensor design ensures immediate stability making the unit ready to take accurate DC (steady state) or dynamic data within 1ms. The Endevco model 7596 operates from 9.5 to l8V DC (or ±4.75 to ±9V DC) and provides a high level, low impedance output that is high enough to drive most laboratory instruments, tape recorders and data acquisition systems without amplification or signal conditioning. The output can be fed into either a differential or single-ended amplifier or standard bridge electronics with 10V DC excitation if required. __________________________________________________ For more information, please contact :- Bruel & Kjaer, Bedford House, Rutherford, Close, Stevenage, Hertfordshire, SG1 2ND. UK Tel: +44(0) 1438 739000, Fax: +44(0) 1438 739099 E-mail: Web site: September 2001
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