SparkFun will be closed Monday 7/4 for the holiday. All orders placed after 2pm MT on Friday 7/1 will be shipped out next week.

Member #427766

Member Since: April 10, 2013

Country: United States

  • Sweet product here. Well worth the money to me. I am setting up experiments at a university and this thing is awesome. I connected it to a waveform generator and a power amplifier and ran it through its frequency range. It definitely has some of its own natural frequency responses. It wants to jump out of its mounting brackets when it hits one of them. I am using it to excite some long, thin rods of metal and I can easily hit both the 1st and 2nd natural frequency (normal bending and S-shape mode). I have an Abacus model and the data matches the FEA analysis well. One bad thing - all of the ones I bought previously have broken. The sheetmetal diaphragm broke right at the square corner near the screw mounting bracket. However :) I see that they have thickened this section and added some round fillets (basically eliminated the stress concentration and reduced the bending stress). The new ones should last a lot longer. Just FYI. BTW, I freaking love Sparkfun!

No public wish lists :(