Kistler has upgraded its 8766A piezoelectric accelerometer family for measuring vibrations in environments with extreme temperature changes, such as near engines. The upgrade provides more accurate results.
Due to the improved IEPE circuit, these sensors now have a lower noise threshold for all ranges: the 50g range has a 53% lower noise threshold; the 100g range, 58%; and the 250g range has a 40% lower noise threshold. For the 500g range, the threshold is reduced by 29% and for the 1,000g range, by 35%. A version suitable for a measuring range of 2,000g has also been added to the portfolio.
With a regular accelerometer, the effects of heat fluctuations must be eliminated via an algorithm to ensure precise data. This requires a lot of expertise as well as exact knowledge of the technology being used.