Hand-held Exciter Type 5961 combines the versatility of a shaker test for optimizing the excitation signal to the test at hand with the mobility of an impact hammer test for easily roving around the test structure. While an impact hammer test is fast and easy to perform, the high crest factor has the potential to drive the structure into non-linear behaviour.
Type 5961
Hand-held Exciter Type 5961 combines the versatility of a shaker test for optimizing the excitation signal to the test at hand with the mobility of an impact hammer test for easily roving around the test structure. While an impact hammer test is fast and easy to perform, the high crest factor* has the potential to drive the structure into non-linear behaviour. Also, the highly deterministic nature of the impact signal means that a linear approximation of slightly non-linear structures is not possible when performing averaging. In a shaker test, various types of random excitation signals such as continuous, burst, and periodic can be used to significantly lower the crest factor and perform a good linear fit of slightly non-linear structures. In addition, using burst or periodic random excitation you can avoid leakage in the analysis. With shaker testing, you also have full control of excitation bandwidth and can limit it to the frequency range of interest including zoom measurements.
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Hand-Held Exciter Type 5961 | Technical Document | English | 835 KB |
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.