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Accelerometer takes the shocks
The new Type 8278A miniature, high temperature, high impedance accelerometer from Kistler Instruments is designed for use in testing lightweight structures with minimum mass loading. The single-axis sensor comprises an annular shear piezoceramic element in a hard-anodised aluminium housing.
At only 700mg, the unit is light but highly robust. It operates over a wide temperature range of -75°C to +180°C and can survive mechanical shocks of up to 10,000g. The exceptionally low sensitivity to base strain errors from bending of the mounting surface ensures reliable and accurate response even when mounted on flexible structures and materials.
The 8278A provides a high frequency response of 10,000Hz (±5 per cent) and 1.3 pC/g sensitivity. Its output range is easily scaled with external electronics whilst integral ground isolation protects signal quality against degradation by electrical noise and ground loops.
The unit is mounted with adhesive and comes with its own wrench for safe removal.