Highly Attuned Accelerometers - Brüel & Kjær launches new accelerometer for very low level testing

March 15, 2010 - PRLog -- The 8344 combines very high sensitivity with excellent frequency response, making it ideal for measurement and analysis applications where a very low level of vibration can affect performance. This would include the effect of ground-borne vibration - caused by construction site operations - on nearby installations, containing devices such as electron microscopes or semiconductor wafer manufacturing facilities.

The 8344 has a built-in DeltaTron preamplifier, which allows it to form part of a Fast Fourier Transform (FFT) testing kit, when coupled with Brüel & Kjær’s 2250 sound level meter and FFT data analysis software.

The 8344 is a piezoelectric DeltaShear® accelerometer with integral electronics, which can be mounted on a test object with a M5 threaded steel stud. The transducer is hermetically sealed, with a Transducer Electronic Data Sheet (TEDS) containing sensor - and application - specific information, including frequency response compensation. It has an incredibly robust, stainless steel exterior and operates with temperatures ranging from –50 to +100°C.

The DeltaShear design involves three piezoelectric elements and three masses arranged in a triangle around a triangular centre post, which is bolted to the housing. The ring pre-stresses the piezoelectric elements to give a high degree of linearity. The signal is collected between the housing and the clamping ring and then amplified by the built-in DeltaTron preamplifier.


ENDS

About Brüel & Kjær
Brüel & Kjær is a world-leading manufacturer and supplier of sound and vibration solutions for use in a wide range of applications including: environmental noise measurements, building acoustics, vibration measurements and quality control for use in the automotive, aerospace and consumer industries, as well as by local authorities.

We design and manufacturer sound level meters, microphones and accelerometers, conditioning amplifiers, calibrators, noise and vibration analysers and software. To see our full range and for more information, please contact our sales team: telephone +44 (0) 1763 255 780 or email: ukinfo@bksv.com

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World-leading manufacturer and supplier: sound and vibration solutions for environmental noise measurements, building acoustics, vibration measurements and quality control for use in the automotive, aerospace, consumer industries, local authorities