Useful measurements of mode shapes on very light structures
require excitation from a very low mass exciter with a
high resonance frequency (300 kHz). These outstanding
features are available with the Endevco 2301 Mini Modal
Hammer. The hammer structure features very high stiffness
and low head mass (only 2 grams). The ergonomically designed
grip provides optimal hammer control thus reducing the
possibilities of "double hits". The sensitivity is 100
mV/lbf (22.7 N).
Some applications include disc drive read heads, turbine
blades and many other light weight structures.
The fixes impact tip is manufactured form case hardened
17-4 stainless steel. Frequency response can be controlled
by using layers of tape in the impact area, or by the
supplied extender mass.
The hammer features an ISOTRON impedance converter providing
an IEPE output which is compatible with most FFT analyzers
and data acquisition systems. Endevco's 4416B single channel
signal conditioner or the Model 133 three channel conditioner
are recommended for use with this hammer series. To excite
larger structures, see the 2302 general purpose modal
hammer and the series of sledge hammers.
Useful measurements of mode shapes on very light structures
require excitation from a very low mass exciter with a
high resonance frequency (300 kHz). These outstanding
features are available with the Endevco 2301 Mini Modal
Hammer. The hammer structure features very high stiffness
and low head mass (only 2 grams). The ergonomically designed
grip provides optimal hammer control thus reducing the
possibilities of "double hits". The sensitivity is 100
mV/lbf (22.7 N).
