The modally tuned impulse excitation
hammer was honored in 1983 with a prestigious IR-100 award, as one of the top 100 industry technical achievements of that year.
Because of the small, finite duration of the B-spline impulse excitation
and the wave attenuation, the number of time steps N that the BIRF matrices are obtained for is small compared to the response of the system to general excitations and limited to only a few time steps .
The surge generator features a special control device, which allows the adjustment of the impulse excitation
generated by the exciter, even during short-circuits.
(4) Impulse Excitation. For impulse excitation, output function can be written as
(4) Impulse Excitation. Figures 32-35 are the responses in the time domain for impulse excitation.
An impulse excitation represented by 0.1 m/s initial velocity is supposed to occur at the first floor of the building.
The structural acceleration time histories of the first floor under sinusoidal and impulse excitation are also displayed in Figures 3 and 4, respectively.
van der Biest, "Impulse excitation apparatus to measure resonant frequencies, elastic moduli, and internal friction at room and high temperature," Review of Scientific Instruments, vol.
 American Society for Testing and Materials, "Standard test method for dynamic Young's modulus, Shear modulus, and poisson's ratio for advanced ceramics by impulse excitation of vibration," Standard C1259-01, April 2001.
Their topics include advanced screening to produce high performance powdered metals, capabilities of conventional and advanced powder compacting presses, industrial furnaces in powder metallurgy and their process technological background, debinding equipment for powder metal injection molded parts, sintering equipment for powder metal injection molded parts, and measuring the high-temperature mechanical properties of sintered products by the impulse excitation
which corresponds to impulse excitation
in time domain.
To measure the elastic properties of ductile iron, use the portable impulse excitation
NDT technique SRF [ILLUSTRATION FOR FIGURE 3 OMITTED].